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 piston, apply ring, and spring.
    • Inspect for cut, worn, or damaged 1-2 clutch piston dam O-ring seal, inner seal, and outer seal.
    • Inspect for improper 1-2 clutch backing plate retaining ring.
    • Inspect for damaged 1-2 clutch backing plate
    •  Inspect for worn splines on the backing plate.