Invalid Data Received From Adaptive Cruise Control Module - Signal Range
The U0577 code means the vehicle's onboard diagnostic system has detected: Invalid Data Received From Adaptive Cruise Control Module - Signal Range. This is a moderate severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- hard
- Estimated cost
- $300 - $1,500
Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.
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Common Symptoms
- Adaptive cruise control unavailable
- Radar sensor blocked message
- Forward collision warning disabled
- Cruise control not maintaining set speed
Probable Causes (Ranked by Likelihood)
- Radar sensor alignment off Very High
- Radar sensor covered by dirt or ice High
- Radar module internal failure Moderate
- CAN bus communication error Low
Step-by-Step Diagnostic Procedure
-
Clean radar sensor area behind front grille
-
Check radar sensor alignment with scan tool
-
Inspect wiring to radar module
-
Verify CAN bus signals from adaptive cruise module
Frequently Asked Questions
Can I drive with U0577?
Check the severity. If it affects safety systems like stability control or braking, limit driving to short distances. Comfort features like heaters or parking assist are safe to drive with.
What causes U0577?
Most commonly a faulty adaptive cruise control module or damaged wiring in the communication circuit to that module.
How much does it cost to fix U0577?
Typical repair costs range from $300 - $1,500 depending on whether the module or just wiring needs repair.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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