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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 197 (Automatic Transmission - 8L45 (M5N M5T) Or 8L90 (M5U) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> No Park or Drive

No Park or Drive

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
Checks Causes
Output Shaft Assembly (76) Inspect for a broken or damaged output shaft. Inspect for worn splines.
A/Trans Case Assembly (16)
  • Inspect for broken or damaged case.
  • Inspect for broken or bent park pawl actuator.
  • Inspect for broken or missing park pawl actuator guide pin or manual shaft pin.
  • Inspect for broken, loose or misaligned park pawl guide.
  • Inspect for binding or broken park pawl or actuator assembly.
Manual Shift Shaft Position Switch Assembly (604) Inspect for broken or disengaged manual valve detent.
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