Lost Communication With Adaptive Cruise Radar Module
The U0283 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Adaptive Cruise Radar Module. This is a moderate severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- hard
- Estimated cost
- $400 - $2,000 (parts and labor)
Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.
Check Price on AmazonAffiliate link -- we earn a commission at no extra cost to you.
Common Symptoms
- Adaptive cruise control not available
- Radar sensor blocked message
- Forward collision warning disabled
- Automatic emergency braking reduced
- ACC indicator showing fault
Probable Causes (Ranked by Likelihood)
- Failed radar sensor module Very High
- Radar sensor blocked by dirt or ice High
- CAN bus wiring fault to radar Moderate
- Radar sensor misalignment after collision Low
Step-by-Step Diagnostic Procedure
-
Clean radar sensor area on front bumper
-
Check radar sensor alignment
-
Scan radar module for codes
-
Verify CAN bus at radar module connector
Frequently Asked Questions
Can I drive with U0283?
Yes, but without adaptive cruise, forward collision warning, or automatic braking.
What causes U0283?
Often just dirt or ice blocking the radar sensor on the front bumper. Clean it first.
How much does U0283 cost to fix?
Sensor cleaning is free. If the module is failed, replacement costs $400 to $2,000.
Sources
This page is built from documented references. Verify against your own service info before repair work.
Explore More
Was this helpful?
Share carcodefinder.com with a friend who needs to decode their check engine light.