GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

Hybrid Low 1-2 Clutch Assembly

    • Inspect for damaged or worn 1-2 clutch plates.
    • Inspect for damaged 1-2 clutch backing plate. Inspect for worn slines on backing plate.
    • Inspect for damaged 1-2 clutch backing plate retaining ring.
    • Inspect for damaged 1-2 clutch piston assembly, spring, retaining ring, and center support assembly.

Hybrid Direct 2-3-4 Clutch Assembly

    • Inspect for damaged or worn 2-3-4 clutch plates.
    • Inspect for damaged 2-3-4 clutch backing plate. Inspect for worn slines on backing plate.
    • Inspect for damaged 2-3-4 clutch backing plate retaining ring.
    • Inspect for damaged 2-3-4 clutch piston assembly, spring, retaining ring, and center support assembly.