Repair Instructions
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. 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
- Control Solenoid Valve and Transmission Control Module Assembly Replacement - Q8 Control Solenoid Valve Assembly
- Control Valve Body Cover Replacement
- Drive and Driven Sprocket, Drive Link, and Park Pawl Installation (6T40/45/50) - Park Gear
- Drive and Driven Sprocket, Drive Link, and Park Pawl Removal (6T40/45/50) - Park Gear
- Input Speed Sensor Replacement - B14C Transmission Input Shaft Speed Sensor
- Output Speed Sensor Replacement - B14A Transmission Output Shaft Speed Sensor
- Perform the scan tool configuration/reset function:Transmission Adaptive Values Learn
- For control module replacement, programming, and setup refer to:Control Module References