Lost Communication With Panoramic Roof Control Module
The U0255 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Panoramic Roof Control Module. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $300 - $1,200 (parts and labor)
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
- Panoramic sunroof not opening or closing
- Sunroof stuck in open position
- Sunshade not responding to controls
- Panoramic roof wind deflector not deploying
Probable Causes (Ranked by Likelihood)
- Failed panoramic roof motor Very High
- Roof track or rail damage High
- CAN bus wiring fault to roof module Moderate
- Sunroof drain clog causing sensor issue Low
Step-by-Step Diagnostic Procedure
-
Check sunroof drain tubes for clogs
-
Inspect roof track for debris
-
Scan roof module for codes
-
Test roof motor with direct power
Frequently Asked Questions
Can I drive with U0255?
Yes, but if stuck open, avoid driving in rain. Try manual override to close.
What causes U0255?
Usually a failed roof motor or damaged track. Clogged drains can cause secondary issues.
How much does U0255 cost to fix?
Typically $300 to $1,200.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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