The contact owns a 2017 Buick Regal. The contact stated while her son was exiting a parking spot at 5 MPH and depressing the brake pedal, the vehicle failed to stop the vehicle. The contact stated no warning light was illuminated. The contact stated that the vehicle rolled to a stop. The driver took the vehicle to an independent mechanic and was informed that the vacuum pump needed to be replaced. The vehicle was repaired but experienced the failure a second time on 9/17/2022. The contact took the vehicle to another independent mechanic and was informed that the vacuum pump needed to be replaced a second time. The vehicle was repaired. The contact stated that the local dealer was notified of the first failure but not the second failure. The manufacturer had been informed of the failure. The failure mileage was approximately 76,000.

- West Newton, PA, USA

The contact owns a 2017 Buick Regal. The contact stated while driving 80 MPH, the brake pedal seized while depressed, preventing the vehicle from immediately stopping. The brake assist warning light was illuminated. The vehicle was towed to the dealer where it was diagnosed with a brake vacuum pump failure. The dealer informed the contact that the exhaust camshaft needed to be replaced and the computer needed to be reset. The vehicle was not repaired and remained at the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 65,000.

- Portland, OR, USA

The contact owns a 2017 Buick Regal. The contact stated that while driving at an undisclosed speed, the brake assists unexpectedly failed, and the brake pedal was firm while depressed. The contact was able to pull over and was awaiting a tow. The vehicle was not diagnosed nor repaired by an independent mechanic or dealer. The vehicle had previously been serviced by an independent mechanic for a vacuum pump replacement. The manufacturer was not made aware of the failure. The failure mileage was 139,790.

- Gainesboro, TN, USA