2015 GMC Sierra 1500 Brake Problems

Which parts fail

• Pedals and linkages
  2
• Power assist › Vacuum
  2
• Brake fluid low warning › Lamp
  1

Components named in complaints (service brakes, ABS, rotors and pads, parking brake).

Mileage when the problem started

• Under 25k
  95%
• 25k–50k
  5533%
• 50k–75k
  6137%
• 75k–100k
  2716%
• 100k–150k
  117%
• 150k+
  21%

Owner reports

Selected complaints filed with NHTSA by 2015 GMC Sierra 1500 owners, lightly cleaned up (personal details are redacted by NHTSA).

The contact owns a 2015 GMC Sierra. The contact stated that while driving in stop and go traffic and attempting to depress the brake pedal, the vehicle failed to stop as anticipated instead the vehicle slid into the vehicle in front of them. The brake pedal began to vibrate and a skipping. The vehicle ended up crashing into the rear of the vehicle in front. The air bags did not deploy. A police report was filed. There were no injuries and no medical attention was needed. The vehicle was not towed. The contact took the vehicle to the dealer who were unable to identify the cause for the failure. The vehicle's alternator shocks, braking pump lines, and updated the computer system however, the failure persisted. The contact stated that whenever the brake pedal was depressed several electrical issues would occur like with the navigation screen and all windows would shut off. …

I was towing a camper down Rt 422 in Butler, PA in my GMC truck when it suddenly caught fire. My wife was following me and alerted me to pull over as quickly as possible. I had no brakes and the gear shifter went straight up without shifting. The doors would also not open while the truck was filling with smoke. I got out using the manual unlock knob and am lucky to be alive. We had about one minute to try to extinguish the flames before it fully engulfed both my truck and camper. I filed a complaint with GMC. By what I am reading online there are many instances of fires and GMC does not seem to provide assistance. This is very unnerving and scary to say the least. I am sad and angry for this situation. This happened through no fault of my own and I lost absolutely everything. I was in the middle of moving to start a new job and lost many work items in my truck as well. …

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 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.

The contact owns a 2015 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the brake pedal was firm while being depressed. The contact stated that the failure occurred intermittently while parking or while at a stop. The brake pedal failed to operate as needed. The check engine warning light was illuminated. The engine power reduced message was displayed. The vehicle was taken to an independent mechanic, where it was diagnosed that the brake booster pump needed to be replaced. The vehicle was not repaired. The vehicle was taken to the local dealer however, the technician was unable to duplicate the failure. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 66,476.

The contact owns a 2015 GMC Sierra. The contact stated that while driving at an undisclosed speed and also while the vehicle was parked, the ABS and stability control warning lights would unexpectedly illuminate. The vehicle was taken to an independent mechanic, where the warning lights were cleared. The contact was informed that if the failure recurred, the EBCM and BPMV would need to be replaced. The vehicle was not repaired. The contact stated that the failure recurred. The vehicle was then taken to the dealer, where it was diagnosed that the EBCM and BPMV had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 90,100.

The contact owns a 2015 GMC Sierra 1500. The contact stated while driving 70 MPH and depressing the brake pedal, the vehicle would not slow down. The contact aggressively depressed on the brake pedal and the vehicle was able to stop as needed. The vehicle was taken to an independent mechanic to be diagnosed. The independent mechanic determined that the vehicle had experienced an unknown failure however, the vehicle was not repaired. The dealer was not contacted. The manufacturer was not notified of the failure. The failure mileage was 50,000.

The contact owns a 2015 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the brake pedal was firm and unresponsive, and the vehicle was difficult to stop. The vehicle eventually came to a stop with the ABS warning light illuminated. The vehicle was driven back to the residence. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 132,235.

The component that malfunctioned is the vehicle braking system at slow speeds. I first experienced the problem at a restaurant drive thru line. After several stops as the line advanced, the braking system failed (extremely hard pedal) and car kept advancing and if someone would have been directly in front of me ( at a normal distance for a drive thru ) I would have made contact with them at a slow speed. I checked with my dealer the next day and they said that there were no reported problems for this issue on my vehicle. No warning lamps or messages present but it seems to me to be similar to the recall ( N192268490 ) as it only happens at slow speed with repeated application of the brake. There were no symptoms of the problem prior to this incident and it took me completely by surprise. …

at first my brakes began locking up on the vehicle, almost as if they were pumped full and not able to press down any longer, shortly after that the stabilitrack light came on and white smoke began to come out of the exhaust as well as a slight shake in the engine, i immediately turned the vehicle off and parked it, mind you i bought the vehicle 1 day ago and it is already broke down, the issue is with gmc and these sensors they are using they are faulty engine reduces speed and it is not safe to say the least.not only that but had the exact same problems with my Gmc Acadia which i finally got the light to stop going off after replacing transmission, brake pedal position censor, as well as gas pedal position censor, also had the throttle body replaced, Do you all make products that are worth anything, nothing was ever done about the Acadia, the Gmc sierra is a 2015 with 70,000 miles on …

Related recalls

NHTSA investigations

Brake complaints in other Sierra 1500 years