Shutting off GMC brake lights

May 28, 2024
Certain 2017 GMC Acadia vehicles may have a brake pedal position sensor (BPPS) flag bracket which allows too much rotation, causing the BPPS sensor to indicate that the brake pedal is applied.

Certain 2017 GMC Acadia vehicles may have a brake pedal position sensor (BPPS) flag bracket which allows too much rotation, causing the BPPS sensor to indicate that the brake pedal is applied.

This could cause the brake lamps to stay on, which could impair the brake lamps’ ability to indicate the intention of the driver to stop/slow down, and this can cause the battery to drain. This can also cause the cruise control system to be inoperative.

This can require the replacement of the brake and accelerator pedal bracket, P/N 22995263.

1. Position the driver seat in the rear-most position to gain access to the BPPS switch activation bracket.

2. Ensure that all three BPPS switch activation bracket plastic tabs are secured over the pedal arm. If any of the BPPS bracket plastic tabs are not secured over the pedal arm, secure the tabs over the pedal arm.

3. Using your fingers, rotate the BPPS activation bracket back and forth to determine if there is any movement at the base of the bracket and bracket shaft.

4. If there is one mm or less of movement in any direction, or less than two mm of movement total in both directions and the brake lights do not remain on after attempting to rotate the bracket, no further action is needed.

5. If there is more than 1mm movement in any direction or over 2mm in movement total in both directions, and the brake lights remain on, replace the brake and accelerator pedal bracket assembly.

About the Author

Motor Age Staff

Motor Age has been publishing technical content for professional automotive technicians since 1899. Our writers have decades of experience and scores of ASE certifications, and they continue to teach new generations of technicians via classrooms all around the globe, as well as through the books and training manuals they've authored. 

Sponsored Recommendations

Variable Valve Timing (VVT) Training Series

Almost every new vehicle is equipped with VVT technology. This video explains the weak points in OE designs and gives you a complete overview of the replacement options available...

Cam & Crank Sensor Training Series

Today's advanced engines depend on accurate and consistent information from cam and crank sensors for performance, fuel economy and emissions, and not all cam and crank sensors...

Buying Your Next Diagnostic Tablet

When you last invested in a diagnostic tablet for your shop, did you consider it a potential gateway to increased revenue? Probably not. It’s likely you viewed it as a necessary...

Access Carside OEM Repair Data with MOTOR TruSpeed

Now available on all Autel MaxiSYS Ultra Series tools, MOTOR TruSpeed Repair delivers expanded OEM service and repair data within days of being published by

Voice Your Opinion!

To join the conversation, and become an exclusive member of Vehicle Service Pros, create an account today!