- May 22: GM Duramax Diesel Lawsuit Awaiting Appeals Court Decision news | 11 days ago
- May 17: GM Fuel Pump Lawsuit Affects Chevy Equinox, GMC Terrain news | 16 days ago
- May 7: GM Transmission Lawsuit Affects Hydra-Matic 8L90 and 8L45 news | 26 days ago
- March 10: GM Trucks Suffer Automatic Emergency Braking Incidents recalls | 84 days ago
GMC TSB #24-NA-020
2020 GMC Sierra 3500
TSB Document:
Affected Component: ELECTRICAL SYSTEM
- Summary
- This service bulletin provides a repair procedure to correct customer concerns of Service Emissions System Displayed on DIC, MIL Illuminated with DTC P249C and/or P20E8 Set.
Click a tab for more information.