GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2009
🢒
Sierra - 2WD
🢒
Diagnostic Navigation
🢒
Vehicle Diagnostic Information
🢒 Harsh Garage Shift
Checks
Causes
Hybrid Low 1-2 Clutch Assembly
Inspect for damaged or worn 1-2 clutch plates.