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.
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2021-2026 Chevrolet Tahoe Generation Guide
Chevrolet Tahoe 5th Gen T1XX (2021-2026) ADAS Calibration & Module Programming
Covers model years 2021-2026 - one service guide for the whole generation.
Full ADAS calibration, module programming, and key security work for every Chevrolet Tahoe built on this platform. Same-day mobile service across the Dallas/Fort Worth metroplex; mail-in accepted nationwide.
- 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 nationwide for module-bench work.
Platform
GMT T1XX (5th Gen Full-Size SUV)
Production
2007-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.
Know 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; 6 years have merged CCT data.
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, security-access planning, and mail-in bench work for the Chevrolet Tahoe 2021-2026 span, with exact-year validation before service.
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.
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 year. 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 2021-2026. Rows that apply to only part of the generation carry 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 2021-2026. 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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. Higher trim only - confirm RPO via GMDB before ordering.
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.
- 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.
- 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.
- 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.
- PART
- 84 (VERIFY SCREEN SIZE VARIANT)
- NOTES
- GDS2 radio/IOR setup after replacement. Confirm Apple CarPlay + Android Auto. RKE remote pairing via GDS2 if radio-integrated. OTA updates - confirm VIN association after IOR replacement. 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- PART
- 84252 (APTIV SECURECONNECT GEN 3)
- NOTES
- SPS programming via TIS2WEB required after replacement. BCM holds PASS-Key III+ database - all customer keys must be present at time of relearn. 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- PART
- 13512 (APPROX)
- NOTES
- Active magnetic sensor. Torque to spec. GDS2 DTC clear + road test at 15+ mph to confirm signal.
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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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.
24 gateway, immobilizer, and security items documented across 2021-2026.
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.
- 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.
- 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.
- 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.
- 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.
- 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.
- 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. BCM holds key database. 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
- BCM replacement erases key database. SPS programming (TIS2WEB) + key relearn with ALL customer keys present mandatory. Do not deliver vehicle until all customer keys confirmed learned.
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 Unlock Supported
- No
- Custom Programming
- Yes
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 examples 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 examples 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 work typically depends on module condition, donor data, and shipping window.
Is Chevrolet Tahoe (2021-2026) service mobile or mail-in?
Both paths are available depending on the job. Mobile service covers DFW on-vehicle diagnostics, ADAS setup, key programming, and post-repair coding. Mail-in service covers ECU, BCM, SRS, TCU, ABS, and other bench module work nationwide. We confirm the correct path for your exact year/VIN before scheduling.