Diagnostic Aids
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- A malfunctioning pressure sensor
- A malfunctioning EBCM
- Test the brake pedal position sensor (BPPS) for proper operation, and adjustment. Check the BPPS for DTCs. An improperly adjusted BPPS will set the DTC.