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GMC TSB #PIT5795
2021 GMC Yukon
TSB Document:
Affected Component: EQUIPMENT
- Summary
- This Preliminary information communicates and issue with a either a Service Leveling or Service Headlight message displayed on the DIC. When checking for DTC's a U0132 for Lost Communication with K5 Automatic Level Control Module (ALCM) may be set in several modules. When trying to communicate with the Automatic Level Control Module there will be no communication. Engineering is working on a fix.
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