OBD-II code · Network
U0336 Software Incompatibility With Restraints Control Module
A module reports a software version mismatch with the restraints control module (airbag/SRS) — typically after replacing one of the modules without programming the new unit to match the rest of the network.
Is it safe to drive with U0336?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyModule replaced without programming
- PossibleWrong part number for the vehicle
- Less likelyGateway module routing CAN messages incorrectly
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Restraints Control Module
Related codes
- U0333Software Incompatibility With Gear Shift Control Module B
- U0334Software Incompatibility With Radio
- U0335Software Incompatibility With Hybrid/EV Battery Pack Sensor Module
- U0337Software Incompatibility With Battery Charger Control Module A
- U0338Software Incompatibility With Remote Function Actuation Module
- U0339Software Incompatibility With Body Control Module B
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.