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Home >> Buick >> 2019 >> Regal TourX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 140 (Automatic Transmission - 9T50 (M3D) And 9T60 (M3T) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Harsh Garage Shift

Harsh Garage Shift

WARNING: This page is about a different car, the 2020 Buick Regal and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Checks Causes
Input Carrier Assembly (552)
  • Inspect for worn or stripped Output Internal Gear Splines.
1-Reverse and 1-2-3-4-5-6 Clutch Piston Housing (590)
  • Inspect for damaged or fatigued 1-2-3-4-5-6 Clutch Wave Plate (595). Refer to Clutch Plate Diagnosis .
  • Inspect for stripped or sheared splines on 1-2-3-4-5-6 Clutch Plate (596). Refer to Clutch Plate Diagnosis .
  • Inspect for correct fluid level.
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