GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

Hybrid Low 1-2 Clutch Assembly

    • Inspect for damaged 1-2 clutch housing assembly.
    • Inspect for damaged or distorted shaft.

4th Clutch Hub Assembly

Inspect for damaged or distorted shaft on hub assembly.

Hybrid Direct 2-3-4 and 1-3 Clutch Hub Assembly

    • Inspect for damaged or distorted shaft on hub assembly.
    • Inspect the output carrier inner sun gear shaft bushings for damage or wear.