Circuit/System Verification

WARNING: This page is about a different car, the 2020 Buick Regal TourX, 2020 Buick Regal, 2019 Buick Regal TourX, and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

Ignition - On / Vehicle - In Service Mode
Verify the scan tool parameter: Brake Pedal Applied = Inactive
- If not the specified state
- Refer to: Stop Lamps Malfunction
- Go to next step: If the specified state
Operate the component: Brake Pedal - Pressed
Operate the component: S3 Transmission Shift Lever - Park & Drive
- If not the specified state
  Refer to: Circuit/System Testing
- Go to next step: If the specified state
All OK.