- May 17: GM Fuel Pump Lawsuit Affects Chevy Equinox, GMC Terrain news | 2 days ago
- May 7: GM Transmission Lawsuit Affects Hydra-Matic 8L90 and 8L45 news | 12 days ago
- March 10: GM Trucks Suffer Automatic Emergency Braking Incidents recalls | 70 days ago
- March 4: GM to Replace Engines in 2023 Colorado, Silverado 1500, GMC Sierra 1500 news | 76 days ago
GMC TSB #PIP5647B
2021 GMC Yukon
TSB Document:
Affected Component: ELECTRICAL SYSTEM
- Summary
- This Preliminary information communicates A vehicle may have a concern of running poor and stalling. No trouble codes may be set referencing this condition. Fuel trims around -20% may be observed on both banks. Engine oil level  will be found over full and have a  fuel odor. It will be found that the Engine oil is diluted with fuel.  Small gas engines (SGE) May only have the engine oil level over full and have a  fuel odor. It will be found that the Engine oil is diluted with fuel. This concern is caused by marshalling the vehicle around the lot before it is sold and/or short driver cycles.Â
Click a tab for more information.