Repair Instructions
WARNING: This page is about a different car, the 2023 GMC Acadia. 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
- Auxiliary Fluid Accumulator Replacement - B280 Automatic Transmission Accumulator Solenoid Valve
- 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.