- November 17: Chevy Express and GMC Savana Vans Recalled For Multiple Issues recalls | 0 days ago
- November 13: GM Recalls 514,000 Vehicles After Rear Wheels Lock-Up recalls | 4 days ago
- October 26: Recall: 2024 GMC Canyon Headlights Flicker recalls | 22 days ago
- October 12: GM Vortec Oil Consumption Lawsuit Dismissed news | 36 days ago
- September 28: GM Shift to Park Class Action Lawsuit Debated in Ohio news | 50 days ago
GMC TSB #G-203256
2012 GMC Sierra 1500
TSB Document:
Affected Component: EQUIPMENT
- Summary
- 14262 - SPECIAL COVERAGE. ON SOME HYBRID 2-MODE (HP2) VEHICLES, THE ACCESSORY POWER MODULE (APM) MAY NOT INITIALIZE WHEN THE VEHICLE IS STARTED IN COLD TEMPERATURES AND THE APM IS COLD. ONCE THE APM WARMS UP, IT WILL INITIALIZE AND PERFORM AS DESIGNED. HOWEVER, DURING THE TIME THAT THE APM IS NOT OPERATIONAL, IT COULD RESULT IN A LOSS OF POWER STEERING ASSIST AND THE BATTERY MAY NOT CHARGE. IF THIS CONDITION OCCURS, THE SERVICE POWER STEERING, SERVICE HYBRID SYSTEM, OR SERVICE BATTERY CHARGING SYSTEM MESSAGE WILL APPEAR IN THE DRIVER INFORMATION CENTER, THE MALFUNCTION INDICATOR LAMP AND RED BATTERY TELLTALE MAY ILLUMINATE, AND DTC U1821 AND U182A WILL BE PRESENT. DEALERS ARE TO REPLACE THE APM.
Click a tab for more information.