Repair Instructions
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.
Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification
- 2-9 and 4 Clutch Piston Housing Disassemble
- Clutch Plate Diagnosis
- Control Valve Body Cleaning and Inspection
- Control Valve Solenoid Body Cleaning and Inspection
- Control Valve Solenoid Body Replacement
- For control module replacement, programming, and setup refer to: Control Module References
Additional Procedures
Transmission Service Fast Learn Procedure - Perform only when the component/system is serviced.