Harsh, Soft, Delayed or Slipping First, Second, Third, Fourth, Fifth, Sixth, 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
1-2-3-4-5-6-Reverse Clutch Assembly	Inspect for damaged or worn 1-2-3-4-5-6-Reverse clutch plates (52, 53). Inspect for damaged 1-2-3-4-5-6-Reverse clutch piston (410), clutch piston return spring (411). Inspect for cut, worn or damaged 1-2-3-4-5-6-Reverse clutch piston seals (408, 409). Inspect for damaged 1-2-3-4-5-6-Reverse clutch piston retaining ring (413). Inspect for damaged or improper selective 1-2-3-4-5-6-Reverse clutch apply plate-selective (51). Inspect for damaged or improper selective 1-2-3-4-5-6-Reverse clutch wave plate (50). Inspect for damaged 1-2-3-4-5-6-Reverse clutch backing plate (54). Inspect for worn splines on backing plate.

Checks

Causes

1-2-3-4-5-6-Reverse Clutch Assembly

Inspect for damaged or worn 1-2-3-4-5-6-Reverse clutch plates (52, 53).
Inspect for damaged 1-2-3-4-5-6-Reverse clutch piston (410), clutch piston return spring (411).
Inspect for cut, worn or damaged 1-2-3-4-5-6-Reverse clutch piston seals (408, 409).
Inspect for damaged 1-2-3-4-5-6-Reverse clutch piston retaining ring (413).
Inspect for damaged or improper selective 1-2-3-4-5-6-Reverse clutch apply plate-selective (51).
Inspect for damaged or improper selective 1-2-3-4-5-6-Reverse clutch wave plate (50).
Inspect for damaged 1-2-3-4-5-6-Reverse clutch backing plate (54). Inspect for worn splines on backing plate.