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GMC TSB #PIE0628
2021 GMC Sierra 1500
TSB Document:
Affected Component: EXTERIOR LIGHTING
- Summary
- This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Malfunction Indicator Lamp illuminated on Driver Information Center (DIC) with DTCs P3055, P3056 Set.
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