VIN / Build Split
VIN pos 4-8 identifies model/body/transmission/engine. Honda WMI: 1HG, 2HG, 5J6. Position 4-5 = model code. Position 10 = model year code.
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2021 Honda Odyssey Supported Services
2021 Honda Odyssey
ADAS calibration, module programming, and security relearns
Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements.
Technical snapshot
- Platform Honda RL6 / RC1-RC2 (5th Gen Odyssey - 2021 Refresh)
- CAN Architecture Honda F-CAN (powertrain, 500 kbps) + B-CAN (body, 125 kbps); OBD2 DLC Pin 6/14 HS-CAN
- Security Honda Smart Entry - EEPROM-based immobilizer; no OBD pin extraction; AKL requires Honda iN dealer authorization
OVERVIEW
Expert ADAS calibration, module programming, and diagnostic recovery for the 2021 Honda Odyssey. On this vehicle we cover documented systems include Honda Sensing Forward Camera (Monocular - 2021 Refresh), Honda Sensing Forward Radar (77GHz - 2021 Refresh), and Traffic Jam Assist (TJA - new 2021), this Honda RL6 / RC1-RC2 (5th Gen Odyssey - 2021 Refresh) platform vehicle, Honda Smart Entry Gen 3 (EEPROM-based, 5th Gen Odyssey Refresh) immobilizer support, Honda Display Audio infotainment programming. Mobile across the DFW Metroplex; mail-in module work is temporarily unavailable.
Platform
Honda RL6 / RC1-RC2 (5th Gen Odyssey - 2021 Refresh)
Production
2005-present
Trim Levels
Multiple trim levels available. ADAS feature availability varies by trim and options package. Contact us for specific trim calibration requirements.
Drivetrain
FWD
Engine
-
CAN Speed
Honda F-CAN (powertrain, 500 kbps) + B-CAN (body, 125 kbps); OBD2 DLC Pin 6/14 HS-CAN
YEAR-SPECIFIC NOTES
Infotainment
Honda Display Audio
Exact-year service summary for 2021 Honda Odyssey
ADAS coverage
This 2021 Honda Odyssey page documents 4 ADAS systems, including Honda Sensing Forward Camera (Monocular - 2021 Refresh), Honda Sensing Forward Radar (77GHz - 2021 Refresh), Traffic Jam Assist (TJA - new 2021), and Rear View Camera.
View ADAS dataCalibration triggers
Documented calibration triggers include Windshield Replacement, Front Bumper Repair, Collision / Airbag Deployment, and Power Sliding Door Service. Use the ADAS tab for the full trigger list.
View triggersTarget setup planning
Approved target-planning data maps this vehicle family to LAM01-04-L&LAM01-04-R. Primary Acura/Honda static target set for FCW/LDW and LKAS forward-camera calibration planning. Confirm VIN, trim, DTCs, sensor part number, and scan-tool procedure before setup.
View ADAS dataProgrammable modules
This page indexes 15 programmable module records across SRS, ECU, BCM, TCU/TCM, ABS, and IPC coverage.
View modulesGateway and security
This page includes 2 gateway, immobilizer, or key-security records for this 2021 Honda Odyssey.
View securityCore Auto Logic capability
Core Auto Logic supports exact-year diagnostics, ADAS calibration, module programming, and security-access planning for the 2021 Honda Odyssey using the documented systems and module data on this page.
Choose a sectionWhat changes on this exact year
Feature availability
Honda Sensing standard ALL trims: Collision Mitigation Braking System/Automatic - Standard; Immobilizer: Honda Smart Entry Gen 3 (EEPROM-based, 5th Gen Odyssey Refre - Standard; Platform: Honda RL6 / RC1-RC2 (5th Gen Odyssey - Confirmed
Driver-assist suite
Honda Sensing standard ALL trims: Collision Mitigation Braking System/Automatic Emergency Braking, Lane Keeping Assist System, LDWS, Adaptive Cruise Control with Low-Speed Follow, Road Departure Mitigation, Automatic High Beams. Traffic Jam Assist (TJA) added 2021.
VIN and build split
VIN pos 4-8 identifies model/body/transmission/engine. Honda WMI: 1HG, 2HG, 5J6. Position 4-5 = model code. Position 10 = model year code.
Infotainment context
Honda Display Audio; Updated Honda Display Audio 9" (EX+); Apple CarPlay/Android Auto wireless on Touring+; Rear Entertainment System 10.2" (Touring/Elite); CabinWatch + CabinTalk on Elite
Network and access
CAN: Honda F-CAN (powertrain, 500 kbps) + B-CAN (body, 125 kbps); OBD2 DLC Pin 6/14 HS-CAN
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
Honda HDS / i-HDS / Honda Diagnostic Software
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.
Choose a section to view data
SUPPORTED SYSTEMS
What we service on this vehicle
Documented module coverage for the 2021 Honda Odyssey. Counts reflect modules our techs have programmed or calibrated on this exact platform.
ADAS Calibration
4 modules documented
Forward camera, radar, surround-view and lane-keep recalibration after windshield, suspension or fascia work.
Open ADAS tabEngine / ECU Programming
2 modules documented
Powertrain reprogramming, calibration updates, replacement ECU configuration and security access.
Open Modules tabBCM / Body Programming
4 modules documented
Body control module, gateway and accessory programming. Includes feature-bit reconfiguration.
Open Modules tabTCU / Transmission
1 module documented
Transmission control module reprogramming, adaptive learning reset and replacement TCM clone.
Open Modules tabSRS / Airbag Reset
2 modules documented
Crash-data clear, hard-code reset and replacement airbag module configuration.
Open Modules tabABS / Brake Module
1 module documented
ABS / EBCM bleed support, replacement module coding and yaw-rate sensor calibration.
Open Modules tabKey Security & Immobilizer
1 module documented
Immobilizer modules, key/fob types, add-key + all-keys-lost (AKL) capability and security overview.
Open Security tabIPC, SAS & Other Modules
2 modules documented
Instrument cluster cloning, steering angle sensor calibration and other supporting modules.
Open Modules tabConnectivity & Accessories
3 modules documented
Infotainment radio, surround view, remote start, trailer brake controller and other equipped systems.
Open Modules tabRecalibration Triggers
6 modules documented
Service events that require ADAS recalibration on this vehicle. Tap to see what triggers what.
Open ADAS tabNeed something not listed? Most undocumented modules can still be programmed.
Get a QuoteFeature availability 3
Honda Sensing standard ALL trims: Collision Mitigation Braking System/Automatic
StandardCalibration required after windshield replacement, camera/radar service, or structural repair affecting sensor alignment.
Immobilizer: Honda Smart Entry Gen 3 (EEPROM-based, 5th Gen Odyssey Refre
StandardKey programming requires manufacturer-level tool access.
Platform: Honda RL6 / RC1-RC2 (5th Gen Odyssey
ConfirmedVerify platform code matches when cross-referencing part numbers across model years.
WHAT WE RESOLVE
Common issues on this vehicle
Common Honda Odyssey issues we resolve on this platform: Honda Sensing Forward Camera (Monocular - 2021 Refresh), Honda Sensing Forward Radar (77GHz - 2021 Refresh), Traffic Jam Assist (TJA - new 2021), and Rear View Camera recalibration after windshield/bumper/suspension/CCM service. Module programming for replacement ECU/PCM, BCM, TCU, or accessory modules - Honda RL6 / RC1-RC2 (5th Gen Odyssey - 2021 Refresh) platform uses Honda F-CAN (powertrain, 500 kbps) + B-CAN (body, 125 kbps); OBD2 DLC Pin 6/14 HS-CAN. Key programming and immobilizer faults - Honda Smart Entry Gen 3 (EEPROM-based, 5th Gen Odyssey Refresh) immobilizer; all-keys-lost supported.
ADAS CALIBRATION MATRIX
ADAS systems on this vehicle
Honda Sensing standard ALL trims: Collision Mitigation Braking System/Automatic Emergency Braking, Lane Keeping Assist System, LDWS, Adaptive Cruise Control with Low-Speed Follow, Road Departure Mitigation, Automatic High Beams. Traffic Jam Assist (TJA) added 2021.
Scroll for part numbers and Details
| System | Type | Category | Cal. Type | Supported | Part # | Actions |
|---|---|---|---|---|---|---|
| Honda Sensing Forward Camera (Monocular - 2021 Refresh) | Forward Camera | Camera | Static | YES | 36150-THR-A21 | |
| Honda Sensing Forward Radar (77GHz - 2021 Refresh) | Front Radar | Radar | Static | YES | 36802-THR-A21 | |
| Traffic Jam Assist (TJA - new 2021) | Fused (Camera + Radar) | Fused | Static | YES | - | |
| Rear View Camera | Rear Camera | Camera | Static | YES | 39530-THR |
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 Affected: Honda Sensing Camera, LKAS, CMBS, TJA, RDM, AHB, ACC
HDS static camera calibration required. TJA now also reliant on camera - verify TJA DTC clear in addition to standard Honda Sensing checks.
Front Bumper Repair Affected: Forward Radar, CMBS, ACC, TJA
HDS radar boresight calibration. 2021 refresh fascia - confirm bracket position before install.
Collision / Airbag Deployment Affected: SRS ECU, airbags, pretensioners, Honda Sensing
2021 SRS ECU has updated suffix - verify correct replacement unit. Hard deployment = replace only. Honda Sensing re-calibration if front disturbed.
Power Sliding Door Service Affected: PSDC Left/Right, pinch sensors
HDS pinch force calibration. Verify full cycle.
Forward Camera Replacement
Camera module replacement requires full recalibration using HDS.
Forward Radar Replacement
Radar module replacement requires alignment/calibration using HDS.
SRS MODULES
SRS Modules
SRS Control Unit 77960-THR-A020-M2
- PART
- 77960-THR-A020-M2
- LOCATION
- Under center console
- MFG
- Denso
- NOTES
- Requires Honda HDS or J2534 for SRS reset. DTC B1000 common after crash clear. Battery disconnect required before removal. Module relearn via HDS after installation.
SRS Control Unit 77960-THR-A120-M2
- PART
- 77960-THR-A120-M2
- LOCATION
- Under center console
- MFG
- Denso
- NOTES
- Requires Honda HDS or J2534 for SRS reset. DTC B1000 common after crash clear. Battery disconnect required before removal. Module relearn via HDS after installation.
ECU MODULES
ECU Modules
ECM - 3.5L J35Y6 V6 i-VTEC 37820-RLV-A01
- PART
- 37820-RLV-A01
- PROTOCOL
- OBD Programming Port
- CODING
- Yes
- CLONE
- Yes
- CHIP/MCU
- Denso SH72544R
- NOTES
- HDS/i-HDS Programming Port flash + VIN + IMMO seed write. Injector balance entry + throttle init + idle learn. Verify VCM cylinder deactivation.
TCM - 10-Speed Automatic 28100-5MX-A01
- PART
- 28100-5MX-A01
- PROTOCOL
- OBD Programming Port
- CODING
- Yes
- CLONE
- Yes
- CHIP/MCU
- Denso
- NOTES
- HDS TCM flash + adaptive relearn. Honda DW-1 ATF.
BCM MODULES
BCM Modules
Body Control Module (BCM - 2021 Refresh) 38809-THR-B01
- PART
- 38809-THR-B01
- SECURITY
- EEPROM
- CODING
- Yes
- CLONE
- Yes
- NOTES
- Updated suffix for 2021 refresh. HDS BCM programming + VIN registration. Controls sliding doors, liftgate, lighting. Verify 2021+ suffix before ordering.
Keyless Access Control Unit 35100-THR-A01
- PART
- 35100-THR-A01
- SECURITY
- EEPROM
- CODING
- Yes
- CLONE
- No
- NOTES
- Honda iN auth required. All keys erased on replacement. Max 6 keys.
Power Sliding Door Control Unit - Left 72010-THR-A01
- PART
- 72010-THR-A01
- SECURITY
- can
- CODING
- Yes
- CLONE
- Yes
- NOTES
- HDS programming + pinch force calibration.
Power Sliding Door Control Unit - Right 72510-THR-A01
- PART
- 72510-THR-A01
- SECURITY
- can
- CODING
- Yes
- CLONE
- Yes
- NOTES
- HDS programming + pinch force calibration.
TCU / TCM TRANSMISSION MODULES
TCU / TCM Transmission Modules
TCU - 10AT 10-Speed Auto 28100-5KE
- PART
- 28100-5KE
- PROTOCOL
- J2534
- CODING
- Yes
- CLONE
- Yes
- CHIP/MCU
- Renesas SH7267
- NOTES
- Requires HDS or J2534 tool for initial programming. ATF-DW1 fluid spec. TCU adaptation and shift point learning required after installation.
ABS / BRAKE MODULES
ABS / Brake Modules
ABS/VSA Modulator-Control Unit 57110-THR-A01
- PART
- 57110-THR-A01
- CLONE
- Yes
- NOTES
- Bosch VSA. HDS power bleed + SAS zero-point calibration. Drive 35+ mph straight after reset.
OTHER MODULES (IPC, SAS)
Other Modules (IPC, SAS)
Instrument Panel Cluster (IPC) 78100-THR-AN2
- PART
- 78100-THR-AN2
- 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)
- CODING
- Yes
- NOTES
- INTEGRATED (cable reel 77900 family)
CONNECTIVITY & ACCESSORIES
Connectivity & Accessories
Display Audio Head Unit (9" - 2021+) 39100-THR-C01
- PART
- 39100-THR-C01
- NOTES
- New 9" unit on 2021 refresh. HDS diagnostic after replacement. Wireless CarPlay/Android Auto on Touring+. VIN registration via HDS.
Rear Entertainment System (10.2") 39100-THR-B01
- PART
- 39100-THR-B01
- NOTES
- Touring/Elite. Verify display + HDMI + wireless headphones.
CabinWatch / CabinTalk Overhead Console Unit 39530-THR-C01
- PART
- 39530-THR-C01
- NOTES
- Elite trim only. Overhead mount. HDS check after replacement.
KEY SECURITY & IMMOBILIZER
Key Security & Immobilizer
- System Honda Smart Entry Gen 3 (EEPROM-based, 5th Gen Odyssey Refresh)
- Add Key Yes
- All Keys Lost Yes
Honda Smart Entry - EEPROM-based immobilizer; no OBD pin extraction; AKL requires Honda iN dealer authorization
IMMOBILIZER MODULES
Immobilizer Modules
Honda Smart Entry / IMMO 35100-THR-A01
- PART
- 35100-THR-A01
- SECURITY
- EEPROM
- NOTES
- EEPROM-based. No OBD pin. iN authorization required. Max 6 keys. IMMO re-match if ECM replaced.
KEY & FOB TYPES
Key & Fob Types
Proximity Smart Key Fob 35118-THR-A00
- PART
- 35118-THR-A00
- NOTES
- HDS + iN auth for add key or AKL. Max 6 keys. Emergency blade HON66/HON66T.
Replacement Notes
Honda Smart Entry Gen 3 (EEPROM-based, 5th Gen Odyssey Refresh) system. HDS (Honda Diagnostic System) required for key programming and module replacement. No obd pin extraction; akl supported.
ARCHITECTURE & CONNECTIVITY
Architecture & Connectivity
- Body Construction
- Honda ACE Unibody - High-Tensile / Ultra-High-Tensile Steel
- OBD Protocol
- ISO 15765-4 CAN (500 kbps)
- CAN Architecture
- Honda F-CAN (powertrain, 500 kbps) + B-CAN (body, 125 kbps); OBD2 DLC Pin 6/14 HS-CAN
- Infotainment
- Updated Honda Display Audio 9" (EX+); Apple CarPlay/Android Auto wireless on Touring+; Rear Entertainment System 10.2" (Touring/Elite); CabinWatch + CabinTalk on Elite
- OTA Capable
- No
- Infotainment Name
- Honda Display Audio
- ECU/TCM Unlocking
- Contact us
- ECU/TCM Flashing
- Confirmed
Reviewed coverage: 2021 - 3.5L i-VTEC (J35Y6).
Confirm the exact engine, ECU, and any prerequisite access method before service.
OPENPILOT / COMMA.AI
Openpilot Compatibility
Not Supported
Officially supported (openpilot master)
- Package
- Honda Sensing
- Hardware
- Comma 3X + Honda Nidec / Bosch A harness
- Harness
- Honda Nidec / Bosch A Harness
2018-20 Nidec, 2021-26 Bosch A.
FREQUENTLY ASKED QUESTIONS
FAQ
How much does ADAS calibration cost for a 2021 Honda Odyssey?
ADAS calibration pricing for a 2021 Honda Odyssey depends on which of its 4 documented systems need work after a repair. This vehicle is documented with Honda Sensing Forward Camera (Monocular - 2021 Refresh), Honda Sensing Forward Radar (77GHz - 2021 Refresh), Traffic Jam Assist (TJA - new 2021), and Rear View Camera. We provide a fixed quote after confirming the operations performed - send the VIN, the repair scope (windshield R&R, bumper work, alignment, collision), and any DTCs so the quote response can include a real number.
Can you reset the airbag light on a 2021 Honda Odyssey?
Yes. The 2021 Honda Odyssey uses a factory SRS control module that we support. We read and clear stored crash data, then restore the module to factory status so the airbag warning light goes out and the system returns to full operation. Reference part number on this vehicle: 77960-THR-A020-M2. Mobile diagnosis and programming are the active service path. Mail-in bench intake is temporarily unavailable. Send the part number and a description of what triggered the light, and we will provide a quote and scheduling window.
What is needed after replacing the windshield on a 2021 Honda Odyssey?
After windshield replacement on a 2021 Honda Odyssey, Honda Sensing Forward Camera (Monocular - 2021 Refresh), Honda Sensing Forward Radar (77GHz - 2021 Refresh), and Rear View Camera rely on the forward-facing camera and require recalibration before the systems return to operation. We perform the calibration on-site in the DFW Metroplex with OE target fixtures. Mail-in intake is temporarily unavailable.
How long does a 2021 Honda Odyssey module service take?
Most 2021 Honda Odyssey onsite jobs are typically scheduled within 24-48 hours once vehicle readiness, access, and route timing are confirmed. This vehicle has roughly 14 programmable modules documented in our database (2 ECU, 4 BCM, 1 TCU, 1 ABS, plus IPC/SAS/gateway/accessory). Mobile module work and ADAS calibration are scheduled in the DFW service area after quote review. Mail-in module intake is temporarily unavailable.
Do you cover the 2021 Honda Odyssey on-site, or is this mail-in only?
We run a mobile unit across the DFW Metroplex for on-vehicle work (ADAS calibration, key programming, IMMO pairing, post-repair recoding, and supported module work). Mail-in module intake is temporarily unavailable. Quote the work and we will confirm the active service path for the 2021 Honda Odyssey. Do not ship a module unless support confirms next steps.
What kind of warranty do you offer on 2021 Honda Odyssey programming?
Every programming, cloning, and calibration job on the 2021 Honda Odyssey is backed by a workmanship warranty covering the scope of work we performed: 1-year unlimited on all flashes, clones, and ADAS calibrations. If a module we programmed or a calibration we performed fails to function as expected, return it and we restore it at no charge. The warranty covers our work; it does not cover unrelated mechanical or electrical failure of the module itself.
Can you program a 2021 Honda Odyssey with no working keys (all-keys-lost)?
Yes - all-keys-lost is supported on the 2021 Honda Odyssey. Immobilizer generation on this platform: Honda Smart Entry Gen 3 (EEPROM-based, 5th Gen Odyssey Refresh). Adding a key (with a working key already in hand) is also supported - typically faster and less expensive than an all-keys-lost reset. Submit the VIN and we will confirm the procedure and quote before scheduling.
Which modules on a 2021 Honda Odyssey can you actually service?
We program, clone, repair, or replace the full programmable-module stack on a 2021 Honda Odyssey. For this vehicle our database documents:
- 2 engine control (ECU/PCM)
- 1 transmission control (TCU/TCM)
- 4 body control (BCM and related)
- 1 ABS / brake control (EBCM)
- 1 immobilizer / security
- 1 key & fob
- 1 instrument cluster (IPC)
- 1 steering angle sensor (SAS)
- 4 ADAS module
Infotainment on this platform: Honda Display Audio. Send the VIN and the operations performed and we will confirm support and pricing.
Additional Module Part Numbers
Additional OEM-sourced part numbers for the 2021 Honda Odyssey covering ADAS, ECU/PCM, BCM, TCU/TCM, SRS, ABS/EBCM, instrument cluster (IPC), gateway, and steering angle sensor modules when available. These reference numbers assist technicians with module identification and sourcing prior to programming.
- ADAS Module Part Numbers
- 36150-THR-A21, 36802-THR-A21, 39530-THR
- ECU / PCM Part Numbers
- 37820-RLV-A01
- BCM / Body Module Part Numbers
- 38809-THR-B01, 35100-THR-A01, 72010-THR-A01, 72510-THR-A01
- TCU / TCM Part Numbers
- 28100-5KE
- SRS / Airbag Module Part Numbers
- 77960-THR-A020-M2, 77960-THR-A120-M2
- ABS / EBCM Part Numbers
- 57110-THR-A01, 5TH GEN ODYSSEY RL6 (2021 REFRESH)
- Instrument Cluster (IPC) Part Numbers
- 78100-THR-AN2
- Transmission Control Module (TCM) Part Numbers
- 28100-5KE
- Steering Angle Sensor (SAS) Part Numbers
- INTEGRATED (CABLE REEL 77900 FAMILY)
Part numbers are OEM base references. Verify exact suffix via VIN-specific build data before ordering. Core Auto Logic provides mobile programming services for all listed modules in the DFW area.
Different trim or build?
Send your VIN and we'll confirm exact module support and pricing in the quote response.
Hit a security wall? We've got the keys.
1-year unlimited warranty on every flash and calibration.
Shared module fitment
Vehicles sharing modules with the 2021 Honda Odyssey
These vehicles use one or more of the same replacement modules indexed for this vehicle.