GM Service Manual Online
For 1990-2009 cars only

Checks

Causes

Hybrid Direct 2-3-4 Clutch Assembly

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