GM Co-Pilot360: Forward Collision Alert/Automatic Emergency Braking, Lane Change
AvailableCalibration required after windshield replacement, camera/radar service, or structural repair affecting sensor alignment.
3,200+ Vehicles Supported
1-Year Unlimited Guarantee
DFW Mobile Service
DFW Serving Dallas / Fort Worth
5th Gen T1XX - 2021-2026 generation coverage
2021-2026 Chevrolet Tahoe service guide ADAS Calibration & Module Programming
Choose this page if your Chevrolet Tahoe is any model year in the 2021-2026 generation.
Full ADAS calibration, module programming, and key security work for every Chevrolet Tahoe built on this platform. Mobile service is available in the Dallas/Fort Worth service area; mail-in is temporarily unavailable.
Technical snapshot
- Platform GMT T1XX (5th Gen Full-Size SUV)
- CAN Architecture GMLAN (HS-CAN + MS-CAN), Ethernet backbone on select modules; OBD2 DLC Pin 6/14 HS-CAN 500kbps
- Security GM PASS-Key III+ - BCM PKE passive entry, RKE 315MHz 128-bit rolling code; GDS2 + TIS2WEB for AKL
The ADAS, module, and security rows below are consolidated across the full 2021-2026 generation. A year badge marks rows that apply only to part of the span; rows without a badge apply to every year. Year-specific differences are summarized under “What changes across 2021-2026”.
OVERVIEW
Expert ADAS calibration, module programming, and diagnostic recovery for the 2021 Chevrolet Tahoe. On this vehicle we cover documented systems include Forward Camera (Monocular), Forward Radar (77GHz), and Blind Spot Monitor Sensor - Left (BSM), this GMT T1XX (5th Gen Full-Size SUV) platform vehicle, GM PASS-Key III+ (T1XX Gen 3) immobilizer support, Chevrolet Infotainment 3 infotainment programming. Mobile across the DFW Metroplex; mail-in module work is temporarily unavailable.
Platform
GMT T1XX (5th Gen Full-Size SUV)
Production
2000-present
Trim Levels
Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements.
Drivetrain
RWD / AWD / 4WD
Engine
-
CAN Speed
GMLAN (HS-CAN + MS-CAN), Ethernet backbone on select modules; OBD2 DLC Pin 6/14 HS-CAN 500kbps
Feature availability 4
Immobilizer: GM PASS-Key III+ (T1XX Gen 3)
StandardKey programming requires manufacturer-level tool access.
Platform: GMT T1XX (5th Gen Full-Size SUV)
ConfirmedVerify platform code matches when cross-referencing part numbers across model years.
GM Co-Pilot360 Plus: Forward Collision Alert/Automatic Emergency Braking, Lane C
AvailableCalibration required after windshield replacement, camera/radar service, or structural repair affecting sensor alignment.
Tool access for this exact year
Representative tool access paths for this exact model year, gated by the vehicle data and source packet we currently trust.
Factory scan, coding, and calibration access
GM GDS2 / GM Tech2Win / GM MDI 2
Factory routines and secure server authorization control this path when aftermarket coverage is not enough for the VIN.
OEM subscription required
Make-level OEM tool map plus exact-year gateway and ADAS fields.
ADAS scan, setup, and verification
Autel, Launch Tech, Topdon
Used where aftermarket coverage supports the procedure; OEM software remains required for locked factory routines.
Tool subscription required
Service-level scanner-vendor source packet plus exact-year ADAS records.
Bench cloning and chip-level recovery
Alientech / Autotuner / Orange5 / Scanmatik / Flex / VVDI2 / PCMFlash / CGDI / X-Prog
Used only when the module, donor data, EEPROM, MCU, or crash-data workflow requires bench or chip-level handling.
Bench/chip-level only
Bench programmer source packet plus exact-year module/security records.
Will my scanner do this?
Basic OBD2 scanner
Can
- Read codes on SRS systems (4 documented rows)
- Read codes on ECU systems (17 documented rows)
- Read codes on BCM systems (13 documented rows)
- Read codes on TCU / TCM systems (3 documented rows)
- Read codes on ABS systems (15 documented rows)
- Read codes on IPC / SAS systems (11 documented rows)
- Read codes on Gateway systems (6 documented rows)
- Read codes on Keys systems (6 documented rows)
- Read codes on Immobilizer systems (12 documented rows)
- Read codes on Accessory systems (17 documented rows)
Cannot
- Gateway programming, coding, cloning, or security work (6 documented rows)
OEM software subscription (J2534)
OEM subscription may be required
Can
- Factory scan, coding, and calibration access: Factory routines and secure server authorization control this path when aftermarket coverage is not enough for the VIN.
Dealer or specialist
Can
- Gateway dealer security rows (6 documented rows)
Dealer security and specialist module work should be scoped by VIN before you buy parts or pay for programming.
Get a QuoteKnow this platform
This platform uses GMLAN (HS-CAN + MS-CAN), Ethernet backbone on select modules; OBD2 DLC Pin 6/14 HS-CAN 500kbps with ISO 15765-4 CAN (500 kbps HS-CAN).
- CAN
- GMLAN (HS-CAN + MS-CAN), Ethernet backbone on select modules; OBD2 DLC Pin 6/14 HS-CAN 500kbps
- OBD
- ISO 15765-4 CAN (500 kbps HS-CAN)
OPENPILOT / COMMA.AI
Openpilot Compatibility
Not Supported
Not supported - tahoe not in openpilot support tree
Not in openpilot support tree as of April 2026.
Generation service summary for Chevrolet Tahoe 5th Gen T1XX (2021-2026)
Generation coverage
This page consolidates Chevrolet Tahoe service data for 2021-2026 across 6 model years; service information is available for 6 years.
Choose a yearADAS coverage
Merged ADAS coverage includes 24 system records, including Forward Camera (Monocular) (2021), Forward Radar (77GHz) (2021), Blind Spot Monitor Sensor - Left (BSM) (2021), and Blind Spot Monitor Sensor - Right (BSM) (2021-2022, 2024-2026). Year-marked systems apply only to the shown range.
View ADAS dataCalibration triggers
This generation has 43 merged calibration trigger records. Trigger applicability can vary by year - verify by VIN before setup.
View triggersProgrammable modules
The merged generation page indexes 86 programmable module records across SRS, ECU, BCM, TCU/TCM, ABS, IPC coverage. Part numbers are confirmed for the exact year/VIN.
View modulesGateway and security
Gateway, immobilizer, and key-security coverage includes 24 merged records. Security procedures vary by year - verify by VIN.
View securityCore Auto Logic capability
Core Auto Logic supports generation-level diagnostics, ADAS calibration, module programming, and security-access planning for the Chevrolet Tahoe 2021-2026 span, with exact-year validation before service. Mail-in work is temporarily unavailable.
Get a quoteDo I need calibration?
Windshield Replacement (Forward Camera Equipped) 1
2021
Forward camera static calibration required via GDS2 after any windshield replacement. Level surface. GM-specified forward target chart at WSM distance. Camera and radar calibrated sequentially. Confirm FCA, AEB, Lane Change Alert all operational.
Forward Camera Replacement 4
2021
GDS2 camera initialization + static calibration. Inspect windshield bracket - do not reuse damaged bracket. Confirm Forward Collision Alert and AEB functional.
2022
GDS2 init + static cal. Inspect bracket. Confirm FCA and AEB.
2023
GDS2 init + static cal. Confirm FCA/AEB.
2024-2026
GDS2 init + static cal. Bracket inspect. Confirm FCA/AEB operational.
Forward Radar (77GHz) Replacement 1
2021
GDS2 radar alignment. Level surface, 10 ft front clearance, no metallic obstructions in radar FOV. Remove bumper fascia before confirming alignment complete.
Surround View Camera Replacement (any of 4) 1
2021
All 4 surround view cameras must be recalibrated together. Calibration mat J-49878 required on flat, level surface per WSM placement diagram. GDS2 surround view calibration procedure. Partial calibration not acceptable.
BZA Rear Radar Replacement (either side) 1
2021
GDS2 BZA module initialization. No physical aiming - fixed mount. Verify RCTA + BZA DTC clear. Road verify at 20+ mph both sides.
BCM Replacement 3
2021
SPS programming (TIS2WEB) + VIN + all vehicle options (Surround View, Super Cruise RPO KSG, BSM, remote start, trailer, heated seats) + PASS-Key III+ key relearn with ALL keys present.
2022
SPS + VIN + all options + PASS-Key relearn all keys.
2023-2026
SPS + VIN + all options + PASS-Key all keys.
ECM Replacement (any engine) 1
2021
SPS programming (TIS2WEB) + VIN + PASS-Key parameter transfer + idle/throttle relearn. L84: AFM adaptation reset. L87: DFM adaptation reset. LM2 diesel: DPF adaptation reset + DEF system check + injector calibration.
EBCM / ABS Module Replacement 1
2021
GDS2 ABS/ESC initialization + 4-wheel brake bleed + steering angle sensor zero-point calibration. Drive straight at 35+ mph on level surface. StabiliTrak warning remains until SAS learning completes.
Steering Angle Sensor / Wheel Alignment 1
2021
GDS2 SAS zero-point reset after alignment or SAS replacement. Drive straight at 35+ mph. StabiliTrak and LKAS may be limited until calibration completes.
Super Cruise System Service (High Country) 1
2021
GDS2 Super Cruise initialization required after any sensor replacement. Active OnStar subscription must be verified. RPO KSG must be present in BCM. System requires LiDAR map coverage for operation.
Any Front-End Collision 1
2021-2026
Yes
Inspect and recalibrate forward camera after any front-end collision using GDS2/MDI2.
Front Bumper Repair or Replacement 1
2021-2026
Yes
Forward radar angular alignment required after front bumper R&R. Use GDS2/MDI2.
Forward Radar Replacement 4
2021
Yes
Radar module replacement requires alignment/calibration using GDS2/MDI2.
2022
GDS2 alignment. Level, 10 ft clear, remove fascia before confirming.
2023
GDS2 alignment. Level, 10 ft clear.
2024-2026
GDS2 alignment. Level. Remove fascia before confirming.
Rear Bumper Repair or Replacement 1
2021-2026
Yes
BSD radar alignment required after rear bumper R&R. Use GDS2/MDI2.
BSM Sensor Replacement 1
2021-2026
Yes
Blind spot monitoring sensor replacement requires calibration using GDS2/MDI2.
Mirror Replacement 1
2021-2026
Yes
Surround view mirror camera recalibration required after mirror R&R. Use GDS2/MDI2.
Windshield Replacement (Camera Equipped) 1
2022
GDS2 forward camera static cal. Level surface, WSM target distance. Sequential camera then radar cal.
Surround View Camera (any of 4) 2
2022
Calibration mat J-49878. All 4 cameras together via GDS2. Flat level surface.
2024-2026
Mat J-49878. All 4 cameras calibrated together via GDS2.
BZA Radar Replacement 3
2022
GDS2 init. No physical aim. RCTA verify 20+ mph.
2023
GDS2 init. Road verify 20+ mph.
2024-2026
GDS2 init. RCTA verify 20+ mph.
ECM Replacement 3
2022
SPS + VIN + PASS-Key. L84: AFM reset. L87: DFM reset. LM2: DPF adaptation + DEF check.
2023
SPS + VIN + PASS-Key. Engine-specific resets.
2024-2026
SPS + VIN + PASS-Key. Engine-specific: AFM (L84), DFM (L87), DPF+DEF (LM2).
EBCM Replacement 3
2022
GDS2 ABS/ESC init + 4-wheel bleed + SAS zero-point (35+ mph drive).
2023
ABS init + 4-wheel bleed + SAS zero-point.
2024-2026
ABS init + 4-wheel bleed + SAS zero-point (drive 35+ mph).
Wheel Alignment / SAS Service 1
2022
GDS2 SAS zero-point reset. Drive straight 35+ mph. StabiliTrak limited until complete.
Windshield Replacement 2
2023
Forward camera static cal via GDS2. Level, target per WSM.
2024-2026
GDS2 forward camera static cal. Level surface. WSM target distance.
Surround View Camera (any) 1
2023
Mat J-49878. All 4 together. Flat level.
Alignment / SAS Service 2
2023
GDS2 SAS reset. Drive 35+ mph straight.
2024-2026
GDS2 SAS reset. 35+ mph straight drive.
Super Cruise Sensor R&R 1
2024-2026
GDS2 Super Cruise init. Confirm OnStar active. Confirm LiDAR coverage.
ADAS calibration requirements
35 calibration requirements are documented for this generation.
17 static, 13 dynamic or drive-cycle, and 6 not-required rows. Verify exact equipment and repair event by VIN before setup.
Forward Range Radar Module / Radar Sensor Module - Long Range
Bumper - front
Systems: Active Driving Assistance, Adaptive Cruise Control, Automatic Emergency Braking, Forward Collision Warning, Adaptive Cruise Control Automatic Emergency Braking Forward Collision Warning
Trigger: R&R, R&I
Setup: Scan tool, Shop built or supplied tools
Forward Range Radar Module / Radar Sensor Module - Long Range
Systems: Bumper - Front
Front View Camera / Vehicle Direction Camera
Systems: Windshield Area
Front View Camera / Vehicle Direction Camera
Windshield area
Systems: Active Driving Assistance, Adaptive Cruise Control, Automatic Emergency Braking, Automatic High Beams, Forward Collision Warning, Lane Departure Warning, Lane Keeping Assistance, Reverse Automatic Emergency Braking, Adaptive Cruise Control Automatic Emergency Braking Automatic High Beams Forward Collision Warning Lane Departure Warning Lane Keeping Assistance
Trigger: R&R, R&I
Setup: Scan tool, Shop built or supplied tools
Front View Driver Information Camera / Frontview Camera
Grille
Systems: Surround View Camera
Trigger: R&R, R&I
Setup: N/A
Front View Driver Information Camera / Frontview Camera
Systems: Grille
Head-Up Display
Dashboard / instrument panel
Systems: Head-Up Display
Trigger: Calibration not required
Head-Up Display
Systems: Dashboard / Instrument Panel
Image Processing Module / Active Safety Control Module
Systems: Quarter Panel - Interior (Right)
Image Processing Module / Active Safety Control Module
Quarter panel - interior (right)
Systems: Active Driving Assistance, Adaptive Cruise Control, Automatic Emergency Braking, Forward Collision Warning, Head-Up Display, Lane Departure Warning, Lane Keeping Assistance, Parking Collision Warning, Adaptive Cruise Control Automatic Emergency Braking Forward Collision Warning Lane Departure Warning Lane Keeping Assistance Parking Collision Warning Reverse Automatic Emergency Braking
Trigger: R&R, R&I
Setup: Scan tool, Shop built or supplied tools
Lighting Control Module
Dashboard / instrument panel
Systems: Automatic High Beams, Rear Vision Enhancement, Automatic High Beams Rear Vision Enhancement
Trigger: R&R, R&I
Setup: Scan tool, Shop built or supplied tools
Lighting Control Module
Systems: Dashboard / Instrument Panel
Parking Assist Alarm Sensor / Parking Assist Object Sensor
Bumper - Front and Rear
Parking Assist Alarm Sensor / Parking Assist Object Sensor
Front and rear bumper
Systems: Active Driving Assistance, Parking Collision Warning
Trigger: Calibration not required
Parking Assist Alarm Sensor / Parking Assist Object Sensor
Systems: Bumper - Front and Rear
Parking Assist Control Module / Object Alarm Module
Systems: Quarter Panel - Interior (Right)
Parking Assist Control Module / Object Alarm Module
Quarter panel - interior (right)
Systems: Active Driving Assistance, Parking Collision Warning, Parking Collision Warning Reverse Automatic Emergency Braking
Trigger: R&R, R&I
Setup: Scan tool, Shop built or supplied tools
Rear View Driver Information Camera (With Surround Vision)
Decklid / liftgate / tailgate
Systems: Surround View Camera, Trailer Assistance, Surround View Camera Trailer Assistance
Trigger: R&R, R&I
Setup: N/A
Rear View Driver Information Camera (With Surround Vision)
Systems: Decklid / Liftgate / Tailgate
Rear View Driver Information Camera (Without Surround Vision)
Decklid / liftgate / tailgate
Systems: Backup Camera
Trigger: Calibration not required
Rear View Driver Information Camera (Without Surround Vision)
Systems: Decklid / Liftgate / Tailgate
Rearview Mirror Camera
Decklid / liftgate / tailgate
Systems: Rear Vision Enhancement
Trigger: Calibration not required
Rearview Mirror Camera
Systems: Decklid / Liftgate / Tailgate
Seat Lane Departure Warning Actuator / Safety Alert Seat
Systems: Seat
Seat Lane Departure Warning Actuator / Safety Alert Seat
Seat
Systems: Automatic Emergency Braking, Blind Spot Warning, Forward Collision Warning, Lane Departure Warning, Lane Keeping Assistance, Parking Collision Warning, Rear Cross Traffic Warning, Reverse Automatic Emergency Braking
Trigger: Calibration not required
Side Object Sensing Alert Module / Side Object Sensor Module
Bumper - Rear
Systems: Blind Spot Warning Lane Change Alert Rear Cross Traffic Warning
Side Object Sensing Alert Module / Side Object Sensor Module
Systems: Bumper - Rear
Side Object Sensing Alert Module / Side Object Sensor Module
Rear bumper
Systems: Blind Spot Warning, Lane Change Alert, Rear Cross Traffic Warning
Trigger: R&R, R&I
Setup: Scan tool, Shop built or supplied tools
Side View Driver Information Camera
Systems: Side Mirror(s)
Side View Driver Information Camera
Side Mirror(s)
Systems: Surround View Camera
Side View Driver Information Camera
Side mirrors
Systems: Surround View Camera
Trigger: R&R, R&I
Setup: N/A
Steering Angle Sensor
Systems: Steering Column
Steering Angle Sensor
Steering column
Systems: Active Driving Assistance, Lane Keeping Assistance, Wheel Alignment ADAS dependency, Lane Keeping Assistance Performing Wheel Alignment May Necessitate Calibrations Affecting ADAS Function
Trigger: R&R, Wheel Alignment
Setup: Scan tool
Video Processing Module
Systems: Quarter Panel - Interior (Left)
Video Processing Module
Quarter panel - interior (left)
Systems: Surround View Camera, Trailer Assistance, Surround View Camera Trailer Assistance
Trigger: R&R, R&I
Setup: Scan tool, Shop built or supplied tools
Year-by-year details
| Year | VIN split | Infotainment | Wireless CarPlay | Wireless Android Auto | Trim notes |
|---|---|---|---|---|---|
| 2021 | VIN pos 4-8 identifies series/body/engine. GM WMI: 1G1 (Chevy car), 1GC (Chevy truck), 3GN (Chevy SUV). Position 8 = engine code. Position 10 = model year code. | Chevrolet Infotainment 3 | Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements. | ||
| 2022 | VIN pos 4-8 identifies series/body/engine. GM WMI: 1G1 (Chevy car), 1GC (Chevy truck), 3GN (Chevy SUV). Position 8 = engine code. Position 10 = model year code. | Chevrolet Infotainment 3 | Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements. | ||
| 2023 | VIN pos 4-8 identifies series/body/engine. GM WMI: 1G1 (Chevy car), 1GC (Chevy truck), 3GN (Chevy SUV). Position 8 = engine code. Position 10 = model year code. | Chevrolet Infotainment 3 Premium | 1 | 1 | Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements. |
| 2024 | VIN pos 4-8 identifies series/body/engine. GM WMI: 1G1 (Chevy car), 1GC (Chevy truck), 3GN (Chevy SUV). Position 8 = engine code. Position 10 = model year code. | Chevrolet Infotainment 3 Premium | 1 | 1 | Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements. |
| 2025 | VIN pos 4-8 identifies series/body/engine. GM WMI: 1G1 (Chevy car), 1GC (Chevy truck), 3GN (Chevy SUV). Position 8 = engine code. Position 10 = model year code. | Chevrolet Infotainment 3 Premium | 1 | 1 | Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements. |
| 2026 | VIN pos 4-8 identifies series/body/engine. GM WMI: 1G1 (Chevy car), 1GC (Chevy truck), 3GN (Chevy SUV). Position 8 = engine code. Position 10 = model year code. | Chevrolet Infotainment 3 Premium | 1 | 1 | Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements. |
What changes across 2021-2026
Differences versus the generation reference. Years not listed here match the shared platform data on this page.
2023
- Infotainment: Chevrolet Infotainment 3 Premium (was Chevrolet Infotainment 3)
- Wireless CarPlay: Yes
- Wireless Android Auto: Yes
2024
- Infotainment: Chevrolet Infotainment 3 Premium (was Chevrolet Infotainment 3)
- Wireless CarPlay: Yes
- Wireless Android Auto: Yes
2025
- Infotainment: Chevrolet Infotainment 3 Premium (was Chevrolet Infotainment 3)
- Wireless CarPlay: Yes
- Wireless Android Auto: Yes
2026
- Infotainment: Chevrolet Infotainment 3 Premium (was Chevrolet Infotainment 3)
- Wireless CarPlay: Yes
- Wireless Android Auto: Yes
24 ADAS systems documented across the 2021-2026 generation. Rows that apply to only part of the generation carries a year badge.
Filter by year
ADAS CALIBRATION MATRIX
ADAS systems on this vehicle
GM Co-Pilot360: Forward Collision Alert/Automatic Emergency Braking, Lane Change Alert w/Blind Spot Monitoring, Rear Cross-Traffic Alert, HD Rear Camera, Front Camera Safety Package, Surround View (available), Super Cruise (High Country RPO KSG)
Scroll for part numbers and Details
| System | Type | Category | Cal. Type | Supported | Part # | Actions |
|---|---|---|---|---|---|---|
| Forward Camera (Monocular) 2021 | Camera | ADAS | Static | YES | 84394 (APPROX - VERIFY GMDB) | |
| Forward Radar (77GHz) 2021 | Radar | ADAS | Static + Dynamic | YES | 84277 (APPROX) | |
| Blind Spot Monitor Sensor - Left (BSM) 2021 | Radar | ADAS | Static + Dynamic | YES | 23234 (APPROX) | |
| Blind Spot Monitor Sensor - Right (BSM) 2021-2022, 2024-2026 | Radar | ADAS | Static + Dynamic | YES | 23234 | |
| Surround View Camera System (4-camera) 2021 | Camera | ADAS | Static | YES | 84 (EACH CAMERA - VERIFY GMDB) | |
| HD Rear Camera 2021 | Camera | ADAS | Static | YES | 84495 (APPROX) | |
| Super Cruise Camera/Sensor Suite (High Country RPO KSG) 2021 | Software | ADAS | None | YES | - | |
| Forward Camera (Monocular) 2022 | Camera | ADAS | Static | YES | 84394 (APPROX) | |
| Forward Radar (77GHz) 2022 | Radar | ADAS | Static + Dynamic | YES | 84277 (APPROX) | |
| Blind Spot Monitor Sensor - Left (BSM) 2022, 2024-2026 | Radar | ADAS | Static + Dynamic | YES | 23234 (APPROX) | |
| Surround View Camera System (4-camera) 2022 | Camera | ADAS | Static | YES | 84 (EACH - VERIFY GMDB) | |
| HD Rear Camera 2022-2023 | Camera | ADAS | Static | YES | 84495 (APPROX) | |
| Super Cruise Suite (High Country - RPO KSG) 2022 | Software | ADAS | None | YES | - | |
| Forward Camera (Monocular) 2023 | Camera | ADAS | Static | YES | 84394 (APPROX - VERIFY GMDB) | |
| Forward Radar (77GHz) 2023 | Radar | ADAS | Static + Dynamic | YES | 84277 (APPROX) | |
| Blind Spot Monitor Sensor - Left (BSM) 2023 | Radar | ADAS | Static + Dynamic | YES | 23234 | |
| Blind Spot Monitor Sensor - Right (BSM) 2023 | Radar | ADAS | Static + Dynamic | YES | 23234 | |
| Surround View (4-camera) 2023-2026 | Camera | ADAS | Static | YES | 84 EACH (VERIFY GMDB) | |
| Super Cruise (High Country RPO KSG) 2023 | Software | ADAS | None | YES | - | |
| Forward Camera (Monocular) 2024-2026 | Camera | ADAS | Static | YES | 84394 (APPROX - VERIFY GMDB 2024) | |
| Forward Radar (77GHz) 2024-2026 | Radar | ADAS | Static + Dynamic | YES | 84277 (APPROX) | |
| HD Rear Camera 2024-2026 | Camera | ADAS | Static | YES | 84495 (APPROX - VERIFY 2024 PN) | |
| Rear Pedestrian Alert (2024) 2024-2026 | Radar | ADAS | Static | YES | - | |
| Super Cruise Suite (High Country RPO KSG) 2024-2026 | Software | ADAS | None | YES | - |
ADAS SYSTEM
YES Supported
Identification
- System type
- Module category
- Sensor location
Part Numbers
- OEM
- Alternative
Calibration & Triggers
- Calibration type
- Programming approach
- Requires PMI
- Trigger events
Technical Notes
- Chip / MCU
- Service notes
Need this calibrated?
Get a quote for ADAS calibration WHEN IS CALIBRATION REQUIRED?
Triggers for ADAS recalibration
Windshield Replacement (Forward Camera Equipped) 2021
Forward camera static calibration required via GDS2 after any windshield replacement. Level surface. GM-specified forward target chart at WSM distance. Camera and radar calibrated sequentially. Confirm FCA, AEB, Lane Change Alert all operational.
Forward Camera Replacement 2021
GDS2 camera initialization + static calibration. Inspect windshield bracket - do not reuse damaged bracket. Confirm Forward Collision Alert and AEB functional.
Forward Radar (77GHz) Replacement 2021
GDS2 radar alignment. Level surface, 10 ft front clearance, no metallic obstructions in radar FOV. Remove bumper fascia before confirming alignment complete.
Surround View Camera Replacement (any of 4) 2021
All 4 surround view cameras must be recalibrated together. Calibration mat J-49878 required on flat, level surface per WSM placement diagram. GDS2 surround view calibration procedure. Partial calibration not acceptable.
BZA Rear Radar Replacement (either side) 2021
GDS2 BZA module initialization. No physical aiming - fixed mount. Verify RCTA + BZA DTC clear. Road verify at 20+ mph both sides.
BCM Replacement 2021
SPS programming (TIS2WEB) + VIN + all vehicle options (Surround View, Super Cruise RPO KSG, BSM, remote start, trailer, heated seats) + PASS-Key III+ key relearn with ALL keys present.
ECM Replacement (any engine) 2021
SPS programming (TIS2WEB) + VIN + PASS-Key parameter transfer + idle/throttle relearn. L84: AFM adaptation reset. L87: DFM adaptation reset. LM2 diesel: DPF adaptation reset + DEF system check + injector calibration.
EBCM / ABS Module Replacement 2021
GDS2 ABS/ESC initialization + 4-wheel brake bleed + steering angle sensor zero-point calibration. Drive straight at 35+ mph on level surface. StabiliTrak warning remains until SAS learning completes.
Steering Angle Sensor / Wheel Alignment 2021
GDS2 SAS zero-point reset after alignment or SAS replacement. Drive straight at 35+ mph. StabiliTrak and LKAS may be limited until calibration completes.
Super Cruise System Service (High Country) 2021
GDS2 Super Cruise initialization required after any sensor replacement. Active OnStar subscription must be verified. RPO KSG must be present in BCM. System requires LiDAR map coverage for operation.
Any Front-End Collision
Inspect and recalibrate forward camera after any front-end collision using GDS2/MDI2.
Front Bumper Repair or Replacement
Forward radar angular alignment required after front bumper R&R. Use GDS2/MDI2.
Forward Radar Replacement 2021
Radar module replacement requires alignment/calibration using GDS2/MDI2.
Rear Bumper Repair or Replacement
BSD radar alignment required after rear bumper R&R. Use GDS2/MDI2.
BSM Sensor Replacement
Blind spot monitoring sensor replacement requires calibration using GDS2/MDI2.
Mirror Replacement
Surround view mirror camera recalibration required after mirror R&R. Use GDS2/MDI2.
Windshield Replacement (Camera Equipped) 2022
GDS2 forward camera static cal. Level surface, WSM target distance. Sequential camera then radar cal.
Forward Camera Replacement 2022
GDS2 init + static cal. Inspect bracket. Confirm FCA and AEB.
Forward Radar Replacement 2022
GDS2 alignment. Level, 10 ft clear, remove fascia before confirming.
Surround View Camera (any of 4) 2022
Calibration mat J-49878. All 4 cameras together via GDS2. Flat level surface.
BZA Radar Replacement 2022
GDS2 init. No physical aim. RCTA verify 20+ mph.
BCM Replacement 2022
SPS + VIN + all options + PASS-Key relearn all keys.
ECM Replacement 2022
SPS + VIN + PASS-Key. L84: AFM reset. L87: DFM reset. LM2: DPF adaptation + DEF check.
EBCM Replacement 2022
GDS2 ABS/ESC init + 4-wheel bleed + SAS zero-point (35+ mph drive).
Wheel Alignment / SAS Service 2022
GDS2 SAS zero-point reset. Drive straight 35+ mph. StabiliTrak limited until complete.
Windshield Replacement 2023
Forward camera static cal via GDS2. Level, target per WSM.
Forward Camera Replacement 2023
GDS2 init + static cal. Confirm FCA/AEB.
Forward Radar Replacement 2023
GDS2 alignment. Level, 10 ft clear.
Surround View Camera (any) 2023
Mat J-49878. All 4 together. Flat level.
BZA Radar Replacement 2023
GDS2 init. Road verify 20+ mph.
BCM Replacement 2023-2026
SPS + VIN + all options + PASS-Key all keys.
ECM Replacement 2023
SPS + VIN + PASS-Key. Engine-specific resets.
EBCM Replacement 2023
ABS init + 4-wheel bleed + SAS zero-point.
Alignment / SAS Service 2023
GDS2 SAS reset. Drive 35+ mph straight.
Windshield Replacement 2024-2026
GDS2 forward camera static cal. Level surface. WSM target distance.
Forward Camera Replacement 2024-2026
GDS2 init + static cal. Bracket inspect. Confirm FCA/AEB operational.
Forward Radar Replacement 2024-2026
GDS2 alignment. Level. Remove fascia before confirming.
Surround View Camera (any of 4) 2024-2026
Mat J-49878. All 4 cameras calibrated together via GDS2.
BZA Radar Replacement 2024-2026
GDS2 init. RCTA verify 20+ mph.
ECM Replacement 2024-2026
SPS + VIN + PASS-Key. Engine-specific: AFM (L84), DFM (L87), DPF+DEF (LM2).
EBCM Replacement 2024-2026
ABS init + 4-wheel bleed + SAS zero-point (drive 35+ mph).
Alignment / SAS Service 2024-2026
GDS2 SAS reset. 35+ mph straight drive.
Super Cruise Sensor R&R 2024-2026
GDS2 Super Cruise init. Confirm OnStar active. Confirm LiDAR coverage.
Modules we program on this generation
86 documented Chevrolet Tahoe modules across the 2021-2026 generation. Open a group for part numbers, programming protocol, security notes, and clone support.
SRS MODULES
SRS Modules
Sensing & Diagnostic Module (SDM) Verify by VIN 13518546
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2021, 2022, 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Cabin floor, under the front center console between the front seats, mounted to the floor pan
The center console must be removed to reach the floor-mounted module. Restraint-system service is recommended to be performed by a qualified professional; this resource is for orientation only and the battery must be disconnected with the required stand-down time observed before any work near the module.
Disconnect the battery first.
Airbag system components - professional service is strongly recommended. Never probe or handle an SRS module with the battery connected.
- PART
- 13518546
- LOCATION
- Under center console
- MFG
- Continental
- NOTES
- Requires GM GDS2 / Tech2 or J2534 for SRS reset. DTC B0100 common after crash events. Wait 90 seconds after ignition off before disconnecting battery.
Sensing & Diagnostic Module (SDM) Verify by VIN 84396838
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2021, 2022, 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Cabin floor, under the front center console between the front seats, mounted to the floor pan
The center console must be removed to reach the floor-mounted module. Restraint-system service is recommended to be performed by a qualified professional; this resource is for orientation only and the battery must be disconnected with the required stand-down time observed before any work near the module.
Disconnect the battery first.
Airbag system components - professional service is strongly recommended. Never probe or handle an SRS module with the battery connected.
- PART
- 84396838
- LOCATION
- Under center console
- MFG
- Continental
- NOTES
- Requires GM GDS2 / Tech2 or J2534 for SRS reset. DTC B0100 common after crash events. Wait 90 seconds after ignition off before disconnecting battery.
Sensing & Diagnostic Module (SDM) Verify by VIN 84396837
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2021, 2022, 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Cabin floor, under the front center console between the front seats, mounted to the floor pan
The center console must be removed to reach the floor-mounted module. Restraint-system service is recommended to be performed by a qualified professional; this resource is for orientation only and the battery must be disconnected with the required stand-down time observed before any work near the module.
Disconnect the battery first.
Airbag system components - professional service is strongly recommended. Never probe or handle an SRS module with the battery connected.
- PART
- 84396837
- LOCATION
- Under center console
- MFG
- Continental
- NOTES
- Requires GM GDS2 / Tech2 or J2534 for SRS reset. DTC B0100 common after crash events. Wait 90 seconds after ignition off before disconnecting battery.
Sensing & Diagnostic Module (SDM) Verify by VIN 2022 13548962
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
Access
Located: Cabin floor, under the front center console between the front seats, mounted to the floor pan
The center console must be removed to reach the floor-mounted module. Restraint-system service is recommended to be performed by a qualified professional; this resource is for orientation only and the battery must be disconnected with the required stand-down time observed before any work near the module.
Disconnect the battery first.
Airbag system components - professional service is strongly recommended. Never probe or handle an SRS module with the battery connected.
- PART
- 13548962
- LOCATION
- Under center console
- MFG
- Continental
- NOTES
- Requires GM GDS2 / Tech2 or J2534 for SRS reset. DTC B0100 common after crash events. Wait 90 seconds after ignition off before disconnecting battery.
ECU MODULES
ECU Modules
ECM - L84 5.3L V8 EcoTec3 (standard engine) Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 12694 (APPROX - VERIFY GMDB BY VIN)
- NOTES
- SPS programming via TIS2WEB. VIN tie required. PASS-Key III+ security parameter transfer from old ECM. AFM (Active Fuel Management) adaptation reset after ECM replacement. Cam phaser relearn via GDS2. Injector balance rate reset. Idle relearn procedure.
ECM - L87 6.2L V8 EcoTec3 (High Country / RST) Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 12697 (APPROX - VERIFY SUFFIX BY VIN)
- NOTES
- SPS programming via TIS2WEB. VIN tie. DFM (Dynamic Fuel Management) cylinder deactivation adaptation reset. Cam phaser relearn. PASS-Key parameter transfer.
ECM - LM2 3.0L Duramax Diesel (if equipped) Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 12708 (APPROX - VERIFY GMDB BY VIN)
- NOTES
- SPS programming via TIS2WEB. VIN tie + PASS-Key parameter transfer. DIESEL-SPECIFIC: DPF (Diesel Particulate Filter) adaptation reset required after ECM replacement. Injector return flow calibration. Glow plug module communication check. DEF system check via GDS2. Diesel ECM programming takes longer - allow extra SPS time on TIS2WEB.
TCM - 10L80 10-Speed Automatic Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 24285 (APPROX)
- NOTES
- GDS2 TCM quick learn procedure after replacement. Transmission adaptive shift data reset. SPS programming if required per RPO. Verify smooth shift quality through all 10 gears on road test.
EBCM (Electronic Brake Control Module) Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84 (CONTINENTAL
- NOTES
- GDS2 ABS/StabiliTrak initialization + 4-wheel manual bleed sequence after replacement. Steering angle sensor calibration required post-replacement - GDS2 SAS reset + drive straight at 35+ mph.
IOR / Infotainment Module (10.2" or 15") Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84 (VERIFY SCREEN SIZE VARIANT)
- NOTES
- GDS2 radio/IOR setup after replacement. RKE remote pairing via GDS2 if radio-integrated. 15" High Country unit is a different part number.
ECM - L84 5.3L V8 x3
12694 (APPROX) Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 12694 (APPROX)
- NOTES
- SPS + VIN + PASS-Key transfer + AFM adaptation reset + cam phaser relearn.
12694 (APPROX) Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 12694 (APPROX)
- NOTES
- SPS + VIN + PASS-Key + AFM reset + cam phaser relearn.
12694 (APPROX - VERIFY 2024 GMDB) Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 12694 (APPROX - VERIFY 2024 GMDB)
- NOTES
- SPS + VIN + PASS-Key + AFM adaptation reset + cam phaser relearn.
ECM - L87 6.2L V8 (High Country/RST) x2
12697 (APPROX) Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 12697 (APPROX)
- NOTES
- SPS + VIN + DFM reset + cam phaser relearn.
12697 (APPROX) Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 12697 (APPROX)
- NOTES
- SPS + VIN + DFM reset. Verify DFM cylinder deactivation function post-programming.
ECM - LM2 3.0L Duramax Diesel x3
12708 (APPROX) Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 12708 (APPROX)
- NOTES
- SPS + VIN + PASS-Key transfer + DPF adaptation reset + injector calibration + glow plug check + DEF system verification.
12708 (APPROX) Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 12708 (APPROX)
- NOTES
- SPS + VIN + DPF adaptation reset + injector cal + DEF system check. Allow extra SPS programming time.
12708 (APPROX - VERIFY 2024 GMDB) Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 12708 (APPROX - VERIFY 2024 GMDB)
- NOTES
- SPS + VIN + DPF adaptation reset + injector return flow calibration + glow plug check + DEF system initialization. Allow extended SPS time. See general_notes for DEF warnings.
TCM - 10L80 10-Speed Verify by VIN 2022 x1
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 24285 (APPROX)
- NOTES
- GDS2 TCM quick learn. Verify smooth shift through all gears.
ECM - L87 6.2L V8 Verify by VIN 2023 x1
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 12697 (APPROX)
- NOTES
- SPS + VIN + DFM reset.
TCM - 10L80 Verify by VIN 2023-2026 x1
_years covers only 2023-2026 for this generation
Used/donor module guide
Compatible donor years: 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Engine bay, mounted to a bracket on the engine/intake area (driver-side region near the air cleaner assembly on the 5.3L/6.2L V8 and 3.0L Duramax diesel)
Open the hood and remove the engine cover and adjacent air intake ducting to expose the module on its bracket. The electrical connectors unlock and lift off once the retaining tabs are released. No interior trim is involved.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 24285
- NOTES
- GDS2 quick learn. Shift quality road test.
BCM MODULES
BCM Modules
Body Control Module (BCM) x4
84252 (APTIV SECURECONNECT GEN 3) Verify by VIN 2021
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Cabin, behind the driver-side lower dash, mounted near/behind the knee bolster below the steering column
Drop the driver-side lower knee bolster/dash trim panel under the steering column to expose the module and its multi-connector harness. No major dash disassembly is needed for visual access.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84252 (APTIV SECURECONNECT GEN 3)
- NOTES
- SPS programming via TIS2WEB required after replacement. Configure all vehicle options in BCM calibration (trailer, heated seats, remote start, BSM, Surround View, Super Cruise RPO KSG if equipped). VIN programming required. OTA module on 2021+ - verify connectivity after replacement.
84252 (APTIV) Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
Access
Located: Cabin, behind the driver-side lower dash, mounted near/behind the knee bolster below the steering column
Drop the driver-side lower knee bolster/dash trim panel under the steering column to expose the module and its multi-connector harness. No major dash disassembly is needed for visual access.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84252 (APTIV)
- NOTES
- SPS (TIS2WEB) + VIN + all options (Surround View, Super Cruise KSG, BSM, remote start, trailer) + PASS-Key III+ relearn all keys.
84252 (APTIV) Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
Access
Located: Cabin, behind the driver-side lower dash, mounted near/behind the knee bolster below the steering column
Drop the driver-side lower knee bolster/dash trim panel under the steering column to expose the module and its multi-connector harness. No major dash disassembly is needed for visual access.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84252 (APTIV)
- NOTES
- SPS (TIS2WEB) + VIN + all options + PASS-Key relearn all keys.
84252 (APTIV - VERIFY 2024 SUFFIX) Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Cabin, behind the driver-side lower dash, mounted near/behind the knee bolster below the steering column
Drop the driver-side lower knee bolster/dash trim panel under the steering column to expose the module and its multi-connector harness. No major dash disassembly is needed for visual access.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84252 (APTIV - VERIFY 2024 SUFFIX)
- NOTES
- SPS (TIS2WEB) + VIN + all vehicle options (Surround View, KSG Super Cruise, BSM, remote start, trailer, heated seats, Rear Ped Alert) + PASS-Key relearn all keys.
Trailer Brake Control Module (if equipped) Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Cabin, behind the driver-side lower dash, mounted near/behind the knee bolster below the steering column
Drop the driver-side lower knee bolster/dash trim panel under the steering column to expose the module and its multi-connector harness. No major dash disassembly is needed for visual access.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 23360 (APPROX)
- NOTES
- Integrated trailer brake controller. GDS2 configuration for trailer type and weight class. User gain adjustment via IOR infotainment interface.
HVAC Control Module Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Cabin, behind the driver-side lower dash, mounted near/behind the knee bolster below the steering column
Drop the driver-side lower knee bolster/dash trim panel under the steering column to expose the module and its multi-connector harness. No major dash disassembly is needed for visual access.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84 (VERIFY GMDB)
- NOTES
- Tri-zone or dual-zone auto climate. GDS2 HVAC actuator calibration after replacement. Verify all zones operational.
IPM (Integrated Power Module) Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Cabin, behind the driver-side lower dash, mounted near/behind the knee bolster below the steering column
Drop the driver-side lower knee bolster/dash trim panel under the steering column to expose the module and its multi-connector harness. No major dash disassembly is needed for visual access.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84
- NOTES
- Fuse/relay distribution. SPS programming if module-equipped variant. Verify all circuits post-replacement.
Trailer Brake Controller x3
23360 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
Access
Located: Cabin, behind the driver-side lower dash, mounted near/behind the knee bolster below the steering column
Drop the driver-side lower knee bolster/dash trim panel under the steering column to expose the module and its multi-connector harness. No major dash disassembly is needed for visual access.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 23360
- NOTES
- GDS2 config for trailer type. IOR gain adjustment.
23360 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
Access
Located: Cabin, behind the driver-side lower dash, mounted near/behind the knee bolster below the steering column
Drop the driver-side lower knee bolster/dash trim panel under the steering column to expose the module and its multi-connector harness. No major dash disassembly is needed for visual access.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 23360
- NOTES
- GDS2 config.
23360 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Cabin, behind the driver-side lower dash, mounted near/behind the knee bolster below the steering column
Drop the driver-side lower knee bolster/dash trim panel under the steering column to expose the module and its multi-connector harness. No major dash disassembly is needed for visual access.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 23360
- NOTES
- GDS2 config for trailer type/weight.
HVAC Module x3
84 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
Access
Located: Cabin, behind the driver-side lower dash, mounted near/behind the knee bolster below the steering column
Drop the driver-side lower knee bolster/dash trim panel under the steering column to expose the module and its multi-connector harness. No major dash disassembly is needed for visual access.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84
- NOTES
- GDS2 HVAC actuator calibration after replacement.
84 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
Access
Located: Cabin, behind the driver-side lower dash, mounted near/behind the knee bolster below the steering column
Drop the driver-side lower knee bolster/dash trim panel under the steering column to expose the module and its multi-connector harness. No major dash disassembly is needed for visual access.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84
- NOTES
- GDS2 actuator cal.
84 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Cabin, behind the driver-side lower dash, mounted near/behind the knee bolster below the steering column
Drop the driver-side lower knee bolster/dash trim panel under the steering column to expose the module and its multi-connector harness. No major dash disassembly is needed for visual access.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84
- NOTES
- GDS2 actuator calibration.
TCU / TCM TRANSMISSION MODULES
TCU / TCM Transmission Modules
TCU - 10L90 10-Speed Auto Verify by VIN 2021-2022 84632
_years covers only 2021-2022 for this generation
Used/donor module guide
Compatible donor years: 2021, 2022
Donor must match part family 84632 - requires cloning
Always match the full part number before buying a used module.
Access
Located: Inside the transmission, integrated into the valve body of the GM 10-speed (10L80) automatic; under the transmission oil pan
The control module is built into the transmission as an internal electro-hydraulic control module (TEHCM). Reaching it requires raising the vehicle and dropping the transmission fluid pan to expose the valve body; it is not a panel-behind cabin module.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84632
- PROTOCOL
- J2534
- CODING
- Yes
- CLONE
- Yes
- CHIP/MCU
- Continental TC1797
- NOTES
- Requires transmission adaptive relearn via Tech2Win or GM MDI. Use Dexron VI ATF. VIN coding mandatory.
TCU - 10L90 10-Speed Auto Verify by VIN 2023-2024 84632
_years covers only 2023-2024 for this generation
Used/donor module guide
Compatible donor years: 2023, 2024
Donor must match part family 84632 - requires cloning
Always match the full part number before buying a used module.
Access
Located: Inside the transmission, integrated into the valve body of the GM 10-speed (10L80) automatic; under the transmission oil pan
The control module is built into the transmission as an internal electro-hydraulic control module (TEHCM). Reaching it requires raising the vehicle and dropping the transmission fluid pan to expose the valve body; it is not a panel-behind cabin module.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84632
- PROTOCOL
- J2534
- CODING
- Yes
- CLONE
- Yes
- CHIP/MCU
- Continental TC1797
- NOTES
- Requires SPS programming, transmission adaptive learn, ATF Dexron VI, BCM/PCM communication setup required
TCU - 10L90 10-Speed Auto Verify by VIN 2025-2026 84632
_years covers only 2025-2026 for this generation
Used/donor module guide
Compatible donor years: 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Inside the transmission, integrated into the valve body of the GM 10-speed (10L80) automatic; under the transmission oil pan
The control module is built into the transmission as an internal electro-hydraulic control module (TEHCM). Reaching it requires raising the vehicle and dropping the transmission fluid pan to expose the valve body; it is not a panel-behind cabin module.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84632
- PROTOCOL
- J2534
- CODING
- Yes
- CLONE
- No
- CHIP/MCU
- Continental TC1797
- NOTES
- SPS programming required, TCM relearn via Tech2Win/GDS2, Dexron VI ATF, VIN matching mandatory
ABS / BRAKE MODULES
ABS / Brake Modules
Electronic Brake Control Module (EBCM) x4
84 (CONTINENTAL Verify by VIN 2021
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84 (CONTINENTAL
- NOTES
- GDS2 ABS/ESC initialization. 4-wheel brake bleed (pressure bleed preferred) or GDS2 automated bleed sequence after HCU-integrated EBCM replacement. Steering angle sensor zero-point calibration required - GDS2 SAS reset, then drive straight at 35+ mph on level surface. StabiliTrak warning will remain until SAS learning completes.
84 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84
- NOTES
- GDS2 ABS/ESC init. 4-wheel brake bleed. SAS zero-point - drive straight 35+ mph.
84 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84
- NOTES
- GDS2 init. 4-wheel bleed. SAS zero-point 35+ mph.
84 (VERIFY 2024) Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84 (VERIFY 2024)
- NOTES
- GDS2 ABS/ESC init. 4-wheel bleed (pressure preferred). SAS zero-point - drive 35+ mph straight.
Wheel Speed Sensor - Front Left Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 13512 (APPROX)
- NOTES
- Active magnetic sensor. Torque to spec.
Wheel Speed Sensor - Front Right Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 13512 (APPROX)
- NOTES
- Same procedure as front left.
Wheel Speed Sensor - Rear Left Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 13512 (REAR VARIANT - APPROX)
- NOTES
- Rear axle-mounted. Same procedure.
Wheel Speed Sensor - Rear Right Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 13512 (REAR VARIANT - APPROX)
- NOTES
- Same procedure.
Brake Pressure Modulator (HCU) x2
84 (VERIFY GMDB) Verify by VIN 2021
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84 (VERIFY GMDB)
- NOTES
- GDS2 automated bleed sequence strongly preferred after HCU replacement. Verify firm pedal feel - no spongy pedal before road test.
84 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84
- NOTES
- GDS2 automated bleed preferred. Verify firm pedal.
Wheel Speed Sensor (each corner) x3
13512 (VARIANT BY POSITION) Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 13512 (VARIANT BY POSITION)
- NOTES
- Torque to spec. GDS2 DTC clear + road test 15+ mph.
13512 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 13512
- NOTES
- Torque spec. Road test 15+ mph.
13512 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 13512
- NOTES
- Torque spec. GDS2 DTC clear. Road test 15+ mph.
HCU x2
84 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84
- NOTES
- GDS2 auto bleed. Firm pedal required before road test.
84 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Engine bay / underbody, on the ABS hydraulic modulator near the brake master cylinder area on the driver-side frame rail
The module bolts to the ABS hydraulic unit (brake pressure modulator). The electronic control portion is generally separable from the hydraulic pump assembly; reaching it is from the engine bay / underbody, not from inside the cabin.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- PART
- 84
- NOTES
- GDS2 auto bleed. Firm pedal before road test.
OTHER MODULES (IPC, SAS)
Other Modules (IPC, SAS)
Instrument Panel Cluster (IPC) x10
85119382 Verify by VIN 2021-2022
_years covers only 2021-2022 for this generation
Used/donor module guide
Compatible donor years: 2021, 2022
Donor must match part family 85119382 - requires cloning
Always match the full part number before buying a used module.
Access
Located: Cabin, in the instrument panel directly ahead of the driver behind the cluster bezel
Remove the instrument cluster trim bezel (released by pulling at the corners after tilting the steering column down), then release the cluster retainers and tilt the cluster out to disconnect its harness. A common, low-trim access job.
Verify before relying on this - secondary sources only.
- PART
- 85119382
- CLONE
- Yes
- NOTES
- IPC cloning required for mileage preservation during replacement. Use Launch advanced programming tool or EEPROM programming tool for EEPROM read/write.
85577579 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Donor must match part family 85577579 - requires cloning
Always match the full part number before buying a used module.
Access
Located: Cabin, in the instrument panel directly ahead of the driver behind the cluster bezel
Remove the instrument cluster trim bezel (released by pulling at the corners after tilting the steering column down), then release the cluster retainers and tilt the cluster out to disconnect its harness. A common, low-trim access job.
Verify before relying on this - secondary sources only.
- PART
- 85577579
- CLONE
- Yes
- NOTES
- IPC cloning required for mileage preservation during replacement. Use Launch advanced programming tool or EEPROM programming tool for EEPROM read/write.
85539954 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Donor must match part family 85539954 - requires cloning
Always match the full part number before buying a used module.
Access
Located: Cabin, in the instrument panel directly ahead of the driver behind the cluster bezel
Remove the instrument cluster trim bezel (released by pulling at the corners after tilting the steering column down), then release the cluster retainers and tilt the cluster out to disconnect its harness. A common, low-trim access job.
Verify before relying on this - secondary sources only.
- PART
- 85539954
- CLONE
- Yes
- NOTES
- IPC cloning required for mileage preservation during replacement. Use Launch advanced programming tool or EEPROM programming tool for EEPROM read/write.
85154334 Verify by VIN 2023-2024
_years covers only 2023-2024 for this generation
Used/donor module guide
Compatible donor years: 2023, 2024
Donor must match part family 85154334 - requires cloning
Always match the full part number before buying a used module.
Access
Located: Cabin, in the instrument panel directly ahead of the driver behind the cluster bezel
Remove the instrument cluster trim bezel (released by pulling at the corners after tilting the steering column down), then release the cluster retainers and tilt the cluster out to disconnect its harness. A common, low-trim access job.
Verify before relying on this - secondary sources only.
- PART
- 85154334
- CLONE
- Yes
- NOTES
- IPC cloning required for mileage preservation during replacement. Use Launch advanced programming tool or EEPROM programming tool for EEPROM read/write.
85154335 Verify by VIN 2023-2024
_years covers only 2023-2024 for this generation
Used/donor module guide
Compatible donor years: 2023, 2024
Donor must match part family 85154335 - requires cloning
Always match the full part number before buying a used module.
Access
Located: Cabin, in the instrument panel directly ahead of the driver behind the cluster bezel
Remove the instrument cluster trim bezel (released by pulling at the corners after tilting the steering column down), then release the cluster retainers and tilt the cluster out to disconnect its harness. A common, low-trim access job.
Verify before relying on this - secondary sources only.
- PART
- 85154335
- CLONE
- Yes
- NOTES
- IPC cloning required for mileage preservation during replacement. Use Launch advanced programming tool or EEPROM programming tool for EEPROM read/write.
85154336 Verify by VIN 2023-2024
_years covers only 2023-2024 for this generation
Used/donor module guide
Compatible donor years: 2023, 2024
Donor must match part family 85154336 - requires cloning
Always match the full part number before buying a used module.
Access
Located: Cabin, in the instrument panel directly ahead of the driver behind the cluster bezel
Remove the instrument cluster trim bezel (released by pulling at the corners after tilting the steering column down), then release the cluster retainers and tilt the cluster out to disconnect its harness. A common, low-trim access job.
Verify before relying on this - secondary sources only.
- PART
- 85154336
- CLONE
- Yes
- NOTES
- IPC cloning required for mileage preservation during replacement. Use Launch advanced programming tool or EEPROM programming tool for EEPROM read/write.
85154337 Verify by VIN 2023-2024
_years covers only 2023-2024 for this generation
Used/donor module guide
Compatible donor years: 2023, 2024
Donor must match part family 85154337 - requires cloning
Always match the full part number before buying a used module.
Access
Located: Cabin, in the instrument panel directly ahead of the driver behind the cluster bezel
Remove the instrument cluster trim bezel (released by pulling at the corners after tilting the steering column down), then release the cluster retainers and tilt the cluster out to disconnect its harness. A common, low-trim access job.
Verify before relying on this - secondary sources only.
- PART
- 85154337
- CLONE
- Yes
- NOTES
- IPC cloning required for mileage preservation during replacement. Use Launch advanced programming tool or EEPROM programming tool for EEPROM read/write.
85154339 Verify by VIN 2023-2024
_years covers only 2023-2024 for this generation
Used/donor module guide
Compatible donor years: 2023, 2024
Donor must match part family 85154339 - requires cloning
Always match the full part number before buying a used module.
Access
Located: Cabin, in the instrument panel directly ahead of the driver behind the cluster bezel
Remove the instrument cluster trim bezel (released by pulling at the corners after tilting the steering column down), then release the cluster retainers and tilt the cluster out to disconnect its harness. A common, low-trim access job.
Verify before relying on this - secondary sources only.
- PART
- 85154339
- CLONE
- Yes
- NOTES
- IPC cloning required for mileage preservation during replacement. Use Launch advanced programming tool or EEPROM programming tool for EEPROM read/write.
86578854 Verify by VIN 2024-2025
_years covers only 2024-2025 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025
Donor must match part family 86578854 - requires cloning
Always match the full part number before buying a used module.
Access
Located: Cabin, in the instrument panel directly ahead of the driver behind the cluster bezel
Remove the instrument cluster trim bezel (released by pulling at the corners after tilting the steering column down), then release the cluster retainers and tilt the cluster out to disconnect its harness. A common, low-trim access job.
Verify before relying on this - secondary sources only.
- PART
- 86578854
- CLONE
- Yes
- NOTES
- IPC cloning required for mileage preservation during replacement. Use Launch advanced programming tool or EEPROM programming tool for EEPROM read/write.
85X Verify by VIN 2026
_years covers only 2026 for this generation
Used/donor module guide
Compatible donor years: 2026
Donor must match part family 85X - requires cloning
Always match the full part number before buying a used module.
Access
Located: Cabin, in the instrument panel directly ahead of the driver behind the cluster bezel
Remove the instrument cluster trim bezel (released by pulling at the corners after tilting the steering column down), then release the cluster retainers and tilt the cluster out to disconnect its harness. A common, low-trim access job.
Verify before relying on this - secondary sources only.
- PART
- 85X
- CLONE
- Yes
- NOTES
- IPC cloning required for mileage preservation during replacement. Use Launch advanced programming tool or EEPROM programming tool for EEPROM read/write.
Steering Angle Sensor (SAS) Verify by VIN x1
coding and programming fields are absent or ambiguous
Used/donor module guide
Compatible donor years: 2021, 2022, 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
- CODING
- Yes
- NOTES
- INTEGRATED (SCM clock spring)
CONNECTIVITY & ACCESSORIES
Connectivity & Accessories
Other x17
84 (VERIFY GMDB) Verify by VIN 2021
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
- PART
- 84 (VERIFY GMDB)
- NOTES
- GDS2 OnStar initialization. Active OnStar subscription required for full remote features, Super Cruise, and OTA updates. Modem VIN-tied - replacement requires GDS2 + OnStar reactivation.
23360 (APPROX) Verify by VIN 2021
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
- PART
- 23360 (APPROX)
- NOTES
- GDS2 configuration for trailer type/weight. 7-pin and 4-pin trailer connector verification. IOR gain adjustment interface.
(BCM PARAMETER - RPO UF8, AP9) Verify by VIN 2021
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
- PART
- (BCM PARAMETER - RPO UF8, AP9)
- NOTES
- BCM AsBuilt parameter for remote start enable. GDS2 BCM configuration. OEM remote start via RKE 315MHz fob sequence. Verify with original key fob.
OEM GM (84) Verify by VIN 2021
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
- PART
- OEM GM (84)
- NOTES
- BCM controls power boards. GDS2 BCM calibration if boards are non-responsive after BCM replacement.
Part 5 Verify by VIN 2021
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
- NOTES
- GDS2 power liftgate module initialization after replacement. Height adjustment via IOR. Verify obstruction detection.
84 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
- PART
- 84
- NOTES
- GDS2 init. Active subscription required for OTA, Super Cruise, remote features.
23360 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
- PART
- 23360
- NOTES
- GDS2 config. 7-pin connector verify.
RPO UF8, AP9 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
- PART
- RPO UF8, AP9
- NOTES
- GDS2 BCM enable. 315MHz fob.
Part 9 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
- NOTES
- BCM-controlled. GDS2 BCM cal after BCM replacement.
Part 10 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
- NOTES
- GDS2 module init + height adjustment via IOR.
84 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- 84
- NOTES
- GDS2 init. Active subscription for OTA + Super Cruise.
RPO UF8, AP9 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- RPO UF8, AP9
- NOTES
- GDS2 BCM enable. 315MHz.
Part 13 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- NOTES
- GDS2 init + height via IOR.
84 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- 84
- NOTES
- GDS2 init. Subscription required for OTA, Super Cruise, remote services.
RPO UF8, AP9 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- RPO UF8, AP9
- NOTES
- BCM GDS2 enable.
Part 16 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- NOTES
- GDS2 init. Height set via IOR.
23360 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- 23360
- NOTES
- GDS2 config. Gain via IOR.
Module part numbers by generation
30 full part numbers across 26 module groups for this generation.
Distance Sensor, Cruise Control
-
85000046 -
85157019
Parking Assist Distance Sensor
-
84586217
Collision Avoidance Module
-
84969984
Active Safety / Image Processing Module
-
84969984Lane departure warning active-safety control module
Forward Camera
-
84710883Parking aid front camera -
85103956Lane departure warning front camera, without automatic braking -
85646262Lane departure warning front camera, with automatic braking
Radar and Side Object Sensors
-
84852644Lane departure / side object sensor, right -
84852645Lane departure / side object sensor, left -
85000046Adaptive cruise sensor, forward range / long range -
85157019Adaptive cruise sensor, short range, order by vehicle application
Forward Looking Camera
-
84710883 -
85103956 -
85646262
Body Control Module
-
13534928 -
13542886 -
13548775BCM labels include 13546971, 13546972, 13546978, 13548771, 13548772, or 13548775 -
13548775
Rear and Side Cameras
-
84676845Rear camera, with surround view -
84884484Rear camera, without surround view -
84891664Side looking camera
Electronic Brake Control Module
-
87854942Anti-lock brakes control module -
87854942
Engine Control Module
-
12719704 -
12719704
Serial Gateway Control Module
-
13534928Gateway/application label family includes 13532121, 13526314, or 13536789 -
13542886Serial Gateway label 13542886
Instrument Cluster
-
84857727Cluster labeled 84857727, order by vehicle application -
84857727 -
84943032Cluster labels include 84852079, 84919777, 84943024, or 84943032 -
84943032
Keyless Entry Receiver
-
13535097 -
13535097With extended range -
85083678 -
85083678Without extended range, labeled 85083678 -
85104942 -
85104942Receiver labeled 85104942
Power Liftgate Control Module
-
85558548Liftgate control module
Power Trunk / Liftgate Control Module
-
85558548
Parking Assist Control and Sensors
-
84586217Parking aid distance sensor -
84761801Parking aid control module
Parking Assist Control Module
-
84761801
Collision Avoidance Sensor
-
84852644 -
84852645
Rear Vision Camera
-
84676845 -
84884484
Side Looking Camera
-
84891664
Supplemental Restraint System SDM Module
-
13518546 -
13518546SDM module labeled 13518546/13538611 -
13548962 -
13548962SDM module labeled 13548962, order by vehicle application
Suspension Control Module
-
84956234Suspension control module -
85165398Rear suspension ride-control compressor module
Suspension Control Module
-
84956234 -
85165398
Automatic Transmission Control Module
-
24056863Automatic Transmission, Trans Controller -
24056863
Transfer Case Control Module
-
86779724 -
86779724Transfer case control module
ECU and TCU access paths by engine
Available access data covers 1 ECU or TCU family across 1 engine row. Final service is still confirmed by VIN, module label, and installed software.
Shown access methods: OBD, BENCH.
T93
Bosch - TCU / TCM
-
2021-20266.2L Ecotec III V8 (L87) - 426 PS - Petrol
24 gateway, immobilizer, and security items documented across the 2021-2026 generation.
GATEWAY / SECURITY MODULES
Gateway / Security Modules
Central Gateway Module Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2021, 2022, 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Cabin, under the driver-side of the dash toward the center, behind the lower dash trim near the steering column
Drop the driver-side lower dash trim to reach the gateway, which sits behind the dash nearer the center stack. This is the central serial-data/Ethernet gateway for the vehicle's Global B electrical architecture.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- MFG
- Renesas
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- D70F3585
- NOTES
- Compatibility label: Chevrolet. Air conditioning Notes: Read/Write
Central Gateway Module Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2021, 2022, 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Cabin, under the driver-side of the dash toward the center, behind the lower dash trim near the steering column
Drop the driver-side lower dash trim to reach the gateway, which sits behind the dash nearer the center stack. This is the central serial-data/Ethernet gateway for the vehicle's Global B electrical architecture.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- MFG
- Renesas
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- D70F3558
- NOTES
- Compatibility label: Buick. BCM Notes: Read/Write
Central Gateway Module Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2021, 2022, 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Cabin, under the driver-side of the dash toward the center, behind the lower dash trim near the steering column
Drop the driver-side lower dash trim to reach the gateway, which sits behind the dash nearer the center stack. This is the central serial-data/Ethernet gateway for the vehicle's Global B electrical architecture.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- MFG
- Various / Unlisted
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- 1M12S
- NOTES
- Compatibility label: CRUZE. BCM Notes: Years: 2015-
Central Gateway Module Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2021, 2022, 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Cabin, under the driver-side of the dash toward the center, behind the lower dash trim near the steering column
Drop the driver-side lower dash trim to reach the gateway, which sits behind the dash nearer the center stack. This is the central serial-data/Ethernet gateway for the vehicle's Global B electrical architecture.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- MFG
- Various / Unlisted
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- 1M12S
- NOTES
- Compatibility label: Cavalier. BCM Notes: Years: 2015-
Central Gateway Module Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2021, 2022, 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Cabin, under the driver-side of the dash toward the center, behind the lower dash trim near the steering column
Drop the driver-side lower dash trim to reach the gateway, which sits behind the dash nearer the center stack. This is the central serial-data/Ethernet gateway for the vehicle's Global B electrical architecture.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- MFG
- Various / Unlisted
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- 1M12S
- NOTES
- Compatibility label: Excelle. BCM Notes: Years: 2015-
Central Gateway Module Dealer security required
vin_locked indicates immobilizer or VIN security
Used/donor module guide
Compatible donor years: 2021, 2022, 2023, 2024, 2025, 2026
Always match the full part number before buying a used module.
Access
Located: Cabin, under the driver-side of the dash toward the center, behind the lower dash trim near the steering column
Drop the driver-side lower dash trim to reach the gateway, which sits behind the dash nearer the center stack. This is the central serial-data/Ethernet gateway for the vehicle's Global B electrical architecture.
Disconnect the battery first.
Verify before relying on this - secondary sources only.
- MFG
- Various / Unlisted
- SECURITY
- VIN-locked (UDS)
- VIN LOCKED
- Yes
- CODING
- Yes
- CHIP/MCU
- 1M12S
- NOTES
- Compatibility label: SAIL. BCM Notes: Years: 2015-
KEY SECURITY & IMMOBILIZER
Key Security & Immobilizer
- System GM PASS-Key III+ (T1XX Gen 3)
- Add Key Yes
- All Keys Lost Yes
GM PASS-Key III+ - BCM PKE passive entry, RKE 315MHz 128-bit rolling code; GDS2 + TIS2WEB for AKL
IMMOBILIZER MODULES
Immobilizer Modules
PassKey III+ Immobilizer x5
Part 1 Verify by VIN 2021
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
- NOTES
- GM PASS-Key III+ with PKE passive entry. GDS2 + TIS2WEB for add key or AKL. No pin code extraction via OBD. Dealer authorization required for AKL via TIS2WEB.
84252 (APTIV) Verify by VIN 2021
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Donor must match part family 84252 (APTIV); VIN-locked
Always match the full part number before buying a used module.
- PART
- 84252 (APTIV)
- NOTES
- SPS programming (TIS2WEB) + key relearn with ALL customer keys present mandatory.
Part 3 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
- NOTES
- GDS2 + TIS2WEB add key/AKL. No OBD pin extraction. Dealer auth required.
Part 4 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- NOTES
- GDS2 + TIS2WEB. No OBD pin. Dealer auth for AKL.
Part 5 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- NOTES
- GDS2 + TIS2WEB. Dealer auth for AKL.
ECM (PASS-Key Security Seed) Verify by VIN 2021 x1
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
- PART
- 12694, 12697, 12708
- NOTES
- ECM paired to BCM for PASS-Key III+ security. SPS programming after ECM replacement includes security parameter transfer. No standalone relearn without TIS2WEB.
BCM (key database) x3
84252 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
- PART
- 84252
- NOTES
- SPS + relearn all keys after replacement.
84252 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- 84252
- NOTES
- SPS + relearn all keys.
84252 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- 84252
- NOTES
- SPS + relearn all customer keys.
ECM (security seed) x3
12694, 12697, 12708 Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
- PART
- 12694, 12697, 12708
- NOTES
- PASS-Key parameter transfer via SPS.
12694, 12697, 12708 Verify by VIN 2023
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- 12694, 12697, 12708
- NOTES
- PASS-Key transfer via SPS.
12694, 12697, 12708 Verify by VIN 2024-2026
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- 12694, 12697, 12708
- NOTES
- PASS-Key transfer via SPS after ECM replacement.
KEY & FOB TYPES
Key & Fob Types
Proximity Smart Key Fob Verify by VIN 2021 13508771 (315MHZ - VERIFY CURRENT GM PART NUMBER)
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
- PART
- 13508771 (315MHZ - VERIFY CURRENT GM PART NUMBER)
- NOTES
- 315MHz RKE + passive entry (PKE). 128-bit rolling code. GDS2 + TIS2WEB dealer authorization for add key or AKL. Rolling code resync via GDS2 if key desynchronized after battery replacement. Battery: CR2032. Max keys per vehicle: verify BCM config - typically 8.
Remote Start Key Fob Verify by VIN 2021
_years covers only 2021 for this generation
Used/donor module guide
Compatible donor years: 2021
Always match the full part number before buying a used module.
- NOTES
- Factory remote start fob. GDS2 BCM pairing procedure. Verify remote start function after pairing.
Proximity Smart Key Fob Verify by VIN 2022 13508771 (315MHZ - VERIFY CURRENT GM PN)
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
- PART
- 13508771 (315MHZ - VERIFY CURRENT GM PN)
- NOTES
- GDS2 + TIS2WEB add key or AKL. Rolling code resync via GDS2 if desynchronized. CR2032 battery.
Remote Start Key Fob Verify by VIN 2022
_years covers only 2022 for this generation
Used/donor module guide
Compatible donor years: 2022
Always match the full part number before buying a used module.
- NOTES
- GDS2 BCM pairing.
Proximity Smart Key Fob Verify by VIN 2023 13508771 (315MHZ - VERIFY CURRENT PN)
_years covers only 2023 for this generation
Used/donor module guide
Compatible donor years: 2023
Always match the full part number before buying a used module.
- PART
- 13508771 (315MHZ - VERIFY CURRENT PN)
- NOTES
- GDS2 + TIS2WEB. CR2032. Rolling code resync if desync.
Proximity Smart Key Fob Verify by VIN 2024-2026 13508771 (315MHZ - VERIFY CURRENT GM PN FOR 2024)
_years covers only 2024-2026 for this generation
Used/donor module guide
Compatible donor years: 2024, 2025, 2026
Always match the full part number before buying a used module.
- PART
- 13508771 (315MHZ - VERIFY CURRENT GM PN FOR 2024)
- NOTES
- GDS2 + TIS2WEB. CR2032. Max 8 keys typical. Rolling code resync if desync post-battery.
Replacement Notes
BCM replacement requires SPS programming (TIS2WEB) + PASS-Key III+ relearn with all customer keys present. ECM replacement: SPS programming + VIN tie + PASS-Key parameter transfer. No key pin extraction via OBD. AKL: GDS2 + TIS2WEB dealer authorization required. Diesel ECM additionally requires DPF adaptation reset.
ARCHITECTURE & CONNECTIVITY
Architecture & Connectivity
- Body Construction
- Body-on-frame; high-strength steel ladder frame; SUV body
- OBD Protocol
- ISO 15765-4 CAN (500 kbps HS-CAN)
- CAN Architecture
- GMLAN (HS-CAN + MS-CAN), Ethernet backbone on select modules; OBD2 DLC Pin 6/14 HS-CAN 500kbps
- Infotainment
- Chevrolet Infotainment 3 Premium - 10.2" touchscreen standard; 15" diagonal portrait display on High Country; Apple CarPlay + Android Auto
- OTA Capable
- Yes
- Infotainment Name
- Chevrolet Infotainment 3
- ECU/TCM Unlocking
- Contact us
- ECU/TCM Flashing
- Available
Reviewed coverage: 2021-2026 - 5.3L V8 EcoTec III 16v (L84), 6.2L Ecotec III V8 (L87).
Confirm the exact engine, ECU, and any prerequisite access method before service.
Confirmation is limited to reviewed year/engine rows; other variants require confirmation.
WHAT WE RESOLVE
5th Gen T1XX (2021-2026) common module and ADAS issues
- ADAS calibration drift Watch for calibration needs after windshield, bumper, suspension, camera, or radar work. Documented systems include Forward Camera (Monocular) (2021), Forward Radar (77GHz) (2021), Blind Spot Monitor Sensor - Left (BSM) (2021), and Blind Spot Monitor Sensor - Right (BSM) (2021-2022, 2024-2026). Year-marked systems apply only to the shown range.
- SRS crash-data and warning light SRS service can involve Sensing & Diagnostic Module (SDM) and Sensing & Diagnostic Module (SDM) (2022). Part numbers and crash-data workflow are confirmed for the exact year/VIN.
- Replacement module setup ECU/PCM replacement programming, BCM configuration, TCU/TCM cloning, ABS/EBCM setup are represented in the merged generation data. Rows with year ranges do not apply to every model year; verify by VIN.
- Gateway, key, and immobilizer access Gateway, key, and immobilizer procedures are represented by 24 merged security records. Access and all-keys-lost support varies by year - verify by VIN.
FREQUENTLY ASKED QUESTIONS
FAQ
Can you program Chevrolet Tahoe (2021-2026) modules?
Yes. Core Auto Logic supports generation-scoped module programming for the Chevrolet Tahoe (2021-2026). The merged generation data includes ECU/PCM, BCM, TCU/TCM, ABS/EBCM, and SRS coverage. Rows marked with a year range apply only to that part of the span; unmarked rows are present across the merged generation data.
Which modules are documented for Chevrolet Tahoe (2021-2026)?
The Chevrolet Tahoe (2021-2026) generation currently shows 52 core module records across ECU/PCM, BCM, TCU/TCM, ABS/EBCM, and SRS groups. SRS modules include Sensing & Diagnostic Module (SDM) and Sensing & Diagnostic Module (SDM) (2022). Part numbers and module variants must be confirmed for your exact year/VIN. Reference part number: 13518546 - confirm for your exact year/VIN.
Does Chevrolet Tahoe (2021-2026) need ADAS calibration after glass or collision work?
The merged generation data documents 24 ADAS systems, including Forward Camera (Monocular) (2021), Forward Radar (77GHz) (2021), Blind Spot Monitor Sensor - Left (BSM) (2021), Blind Spot Monitor Sensor - Right (BSM) (2021-2022, 2024-2026), and Surround View Camera System (4-camera) (2021). Calibration triggers include Windshield Replacement (Forward Camera Equipped) (2021), Forward Camera Replacement (2021), Forward Radar (77GHz) Replacement (2021), and Surround View Camera Replacement (any of 4) (2021). Procedure type is VIN-specific scan-tool procedure; verify exact requirements by VIN before setup.
Can you reset the airbag module on Chevrolet Tahoe (2021-2026)?
Yes. The generation data includes 4 SRS records, including Sensing & Diagnostic Module (SDM) and Sensing & Diagnostic Module (SDM) (2022). Bench reset, cloning, and replacement setup are handled after part-number review. Any SRS part number shown for this generation is planning data only - confirm for your exact year/VIN. Reference part number: 13518546 - confirm for your exact year/VIN.
Do all Chevrolet Tahoe (2021-2026) years use the same parts?
No assumption should be made across the full span. The generation page merges rows across 2021-2026; any row that does not span all data-bearing years is printed with its year range or treated as varies by year - verify by VIN. Part numbers always require exact year/VIN confirmation before ordering, cloning, or programming.
Can you program keys or immobilizer systems for Chevrolet Tahoe (2021-2026)?
Yes, where the VIN and security workflow support it. The generation data includes 24 gateway, immobilizer, or key-security records. Gateway modules include Central Gateway Module. Key records are present in the merged generation data. Security access, all-keys-lost eligibility, and add-key workflows vary by year - verify by VIN.
How long does service take for Chevrolet Tahoe (2021-2026)?
Most programming, cloning, SRS, and calibration jobs are quoted after VIN, DTC, part number, and repair-scope review. Labor time varies by year - verify by VIN before scheduling. Mail-in module intake is temporarily unavailable; do not ship a module unless support confirms next steps.
Is Chevrolet Tahoe (2021-2026) service mobile or mail-in?
Mobile service covers DFW on-vehicle diagnostics, key programming, post-repair coding, and supported module work. Mail-in module intake is temporarily unavailable. We confirm the active path for your exact year/VIN before scheduling; do not ship a module unless support confirms next steps.
More Tahoe generations
GMT800 2000-2006 3rd Gen GMT900 2007-2014 4th Gen K2XX 2015-2020 5th Gen T1XX 2021-2026 You are here