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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 358 (Automatic Transmission - 6T50 (M2D) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Harsh or Late Third, Fifth, and Reverse Shift

Harsh or Late Third, Fifth, and Reverse Shift

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
Checks Causes
3-5 Reverse Clutch Assembly
  • Inspect for damaged splines or improper surface finish on 3-5 Reverse Clutch Plates (507-509), Backing Plate (510)
  • Inspect for damaged, worn or leaking 3-5 Reverse Clutch Piston Seals (504-506)
  • Inspect for warped 3-5 Rev/4-5-6 Clutch Housing (516)
  • Inspect for broken or fatigued 3-5 Reverse Clutch Waved Plate (507)