Harsh, Soft, Delayed or Slipping Fourth, Fifth, Sixth, Seventh, Eighth, Ninth, Tenth, or Reverse Shift

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

Checks	Causes
4-5-6-7-8-9-10-Reverse Clutch Assembly	Inspect for damaged or worn 4-5-6-7-8-9-10-Reverse clutch plates (542, 543). Inspect for damaged 4-5-6-7-8-9-10-Reverse clutch piston (534), return spring (535), piston dam (539). Inspect for damaged 4-5-6-7-8-9-10-Reverse clutch piston dam retaining ring (538). Inspect for cut, worn or damaged 4-5-6-7-8-9-10-Reverse clutch piston dam seals (536, 537). Inspect for improper selective 4-5-6-7-8-9-10-Reverse clutch backing plate retaining ring (545). Inspect for improper 4-5-6-7-8-9-10-Reverse clutch backing plate retaining ring (546, 547). Inspect for damaged 4-5-6-7-8-9-10-Reverse clutch backing plate (544). Inspect for worn splines on backing plate. Inspect for damaged 4-5-6-7-8-9-10-Reverse clutch apply plate (540). Inspect for worn splines on apply ring. Inspect for damaged triple clutch housing (518).

Checks

Causes

4-5-6-7-8-9-10-Reverse Clutch Assembly

Inspect for damaged or worn 4-5-6-7-8-9-10-Reverse clutch plates (542, 543).
Inspect for damaged 4-5-6-7-8-9-10-Reverse clutch piston (534), return spring (535), piston dam (539).
Inspect for damaged 4-5-6-7-8-9-10-Reverse clutch piston dam retaining ring (538).
Inspect for cut, worn or damaged 4-5-6-7-8-9-10-Reverse clutch piston dam seals (536, 537).
Inspect for improper selective 4-5-6-7-8-9-10-Reverse clutch backing plate retaining ring (545).
Inspect for improper 4-5-6-7-8-9-10-Reverse clutch backing plate retaining ring (546, 547).
Inspect for damaged 4-5-6-7-8-9-10-Reverse clutch backing plate (544). Inspect for worn splines on backing plate.
Inspect for damaged 4-5-6-7-8-9-10-Reverse clutch apply plate (540). Inspect for worn splines on apply ring.
Inspect for damaged triple clutch housing (518).