OBD-II code · Network
U0235 Lost Communication with Cruise Control Front Distance Range Sensor
Adaptive cruise control has lost the front radar / distance sensor. ACC is deactivated, fixed-speed cruise may stay available, and forward collision warning is disabled.
Is it safe to drive with U0235?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyRadar obstructed or misaligned
- PossibleRadar unpowered
- 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
- Acc Radar, Can Bus Wiring
Related codes
- U0232Lost Communication with Left Side Obstacle Detection Control Module
- U0233Lost Communication with Right Side Obstacle Detection Control Module
- U0234Lost Communication With Convenience Recall Module
- U0236Lost Communication with Steering Angle Sensor Module
- U0237Lost Communication with Sunroof Assembly Control Module
- U0238Lost Communication With Digital Audio Control Module D
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.