The contact owns a 2015 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, the brake pedal was depressed; however, the vehicle failed to stop as intended. No warning lights were illuminated. The contact noticed an abnormal sound, and the vehicle rolled forward before the vehicle stopped. The vehicle was taken to the dealer but was not diagnosed. The dealer was made aware of the failure. The contact was informed of an unknown recall; however, the recall repair had expired. The contact had not received a recall notification. The vehicle was not diagnosed or repaired by an independent mechanic. The manufacturer was made aware of the failure and confirmed that the recall had expired in June 2024. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 75,000.

- Knox, IN, USA

The contact owns a 2015 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, the brake pedal was depressed; however, the vehicle failed to stop as intended. The vehicle was taken to the dealer; however, the vehicle was not diagnosed. The vehicle was not repaired. The contact stated that the failure became a persistent failure. The manufacturer was made aware of the failure. The contact referenced an unknown recall repair as a possible cause of the failure; however, the VIN was not included. The failure mileage was unknown.

- Grand Rapids, MI, USA

The contact owns a 2015 GMC Sierra 1500. The contact stated while driving 10 MPH and coming to a stop, the brake pedal was depressed but hesitated to respond, causing 10-15 feet stopping distance delay. The contact stated that the failure reoccurred while driving downhill. The brake pedal was depressed down to the floorboard but failed to respond, almost causing the vehicle to crash into another vehicle. The contact pumped the brake pedal and the vehicle stopped; however, the failure reoccurred while driving at slow speeds and approaching the residence. The contact stated that her son test drove the vehicle at high speed and informed her that the brakes operated as needed. The contact became aware that the failure was occurring mainly while driving at slow speeds. The dealer was notified of the failure and informed the contact that she needed to pay a diagnostic test fee, but the contact declined. The vehicle was not diagnosed nor repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline. The failure mileage was approximately 61,299.

- Helena, MT, USA

The contact owns a 2015 GMC Sierra 1500. While operating the vehicle at very low speeds and while pulling into a parking space, the brakes suddenly malfunctioned. The failure caused the brake pedal to extend to the floor and the vehicle would not immediately stop. The contact stated that the failure occurred on six separate occasions. The vehicle was taken to the local dealer (marshall Chevrolet, 1601 S. state St, jerseyville, il), but the failure was unable to be duplicated. The manufacturer was not notified of the failure. The VIN was not available. The failure mileage was 2,500.

- Fieldon, IL, USA