GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

1-3 Clutch Assembly

    â€¢ Inspect for damaged 1-3 clutch piston assembly.
    â€¢ Inspect for worn or damaged 1-3 splines.

Drive Motor with Generator Position 2

    â€¢ Inspect splines.
    â€¢ Inspect HV connections.

Hybrid Low 1-2 Clutch Assembly

    â€¢ Inspect for damaged 1-2 clutch piston assembly.
    â€¢ Inspect for worn or damaged 1-2 splines.