- August 4: GM Peeling Paint Class Action Lawsuit Says Recall Needed news | 20 days ago
- July 31: GM Duramax Diesel CP4 Fuel Pump Lawsuit Settlement news | 24 days ago
- July 4: Chevrolet Colorado and GMC Canyon Recalled For Fire Risk recalls | 51 days ago
- July 2: No Missouri GM Oil Consumption Class Action Lawsuit news | 53 days ago
GMC TSB #21-NA-124
2021 GMC Sierra 1500
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING
- Summary
- This service bulletin provides diagnostic tips/steps on testing for possible EVAP leaks in the system to correct a customer concern of an MIL Illuminated with DTCs P0442 and/or P0455 Set.
Click a tab for more information.