2014 GMC Sierra 1500 Brake Problems

Which parts fail

• Power assist › Vacuum
  1

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

Mileage when the problem started

• Under 25k
  109%
• 25k–50k
  1211%
• 50k–75k
  3632%
• 75k–100k
  2220%
• 100k–150k
  2119%
• 150k+
  109%

Owner reports

Selected complaints filed with NHTSA by 2014 GMC Sierra 1500 owners, lightly cleaned up (personal details are redacted by NHTSA).

The contact owns a 2014 GMC Sierra 1500. The contact stated while driving approximately 60 MPH, as the contact slowed for traffic, the brake pedal became very hard to depress. The contact stated he had to use more than normal leg strength to depress the brake pedal. The contact stated no warning light was illuminated. The contact stated that the failure had become reoccurring. The contact stated that the failure of the brakes also occurred while starting the vehicle and shifting into either drive(D) or reverse(R). The contact had not taken the vehicle to a local dealer or mechanic. The vehicle had not been diagnosed or repaired. The manufacturer had been informed of the failure. The contact researched online and related the failure to NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic). The failure mileage was approximately 189,000.

The contact owns a 2014 GMC Sierra 1500. The contact stated that 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 stated that the brake pedal was depressed to the floorboard. The failure also persisted while driving downhill. The vehicle was taken to an independent mechanic. The contact was provided information for NHTSA Campaign Number: 19V645000 (SERVICE BRAKES, HYDRAULIC). The vehicle was taken to the dealer; however, the vehicle was not diagnosed or repaired. The contact was informed that the manufacturer had closed the warranty, because the vehicle exceeded 100,000 miles. The manufacturer was not made aware of the failure. The failure mileage was approximately 156,000.

The contact owns a 2014 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic) however; the contact disregarded the letter. The contact stated that while attempting to parallel park, the brakes failed to operate properly. The contact stated that the brake pedal became abnormally stiff. The contact was able to operate the brake pedal and park the vehicle. The vehicle was then taken to a dealer for a routine oil change, and the vehicle was diagnosed with a non-functional vacuum pump. The vehicle was not repaired. The manufacturer was made aware of the failure; however, the contact was informed that the recall had expired. The failure mileage was approximately 135,000.

The contact owns a 2014 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed and became firm. Additionally, the vehicle failed to stop immediately. No warning lights were illuminated. The vehicle was taken to the dealer, who informed the contact that the vacuum pump had failed and needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic). The manufacturer was not made aware of the failure. The failure mileage was 151,477.

The vehicle was in a accident where someone ran a red light and my vehicle hit the in the front passenger side. My speed was around 40 to 45 mph there was no restraint with the seatbelt,airbag did not deploy and brakes didn't work properly.

I am experiencing an issue with a hard brake pedal on my 2014 GMC Sierra 1500. This same issue was previously addressed through a recall and special coverage program by GM, which I had performed. However, the hard brake pedal condition has returned, significantly impairing stopping power at low speeds. This poses a serious safety risk, especially when towing or parking. I can no longer park my trailer safely. The vehicle is difficult to stop, and braking distance has increased substantially. This is a known issue with this model and year. It appears the prior recall may not have adequately resolved the root cause. I am requesting that NHTSA investigate whether additional action or recall extensions are warranted.

Hello, I am driving a 2014 Sierra truck with 17,761 miles, my father's work truck. The first week I had No problems, the 2nd week the Trailer Brake warning came on relentlessly. New truck, scary Warning sign! I took it to GMC to dislocate trailer brake, they sold me a $340 trailer brake control switch. Upon my return to where I live a loud sound came from when I was idling to wait for construction to accelerating. I noticed once I got home, my back wheels were hot and a burning smell! I hate when you take your car in for one warning sign and you get something so much worst and you paid outrageously for that! Karma!

When I am braking at low speed my brakes start locking up and eventually do not work. This has happened on multiple occasions. I have almost wrecked multiple times I rarely drive my truck now cause it is unsafe. There is a recall on the brake booster 2014 to 2018 gmc seria but my truck vin is not included on that recall and it's doing the exact same thing. GM recalls 3.4 million pickups and SUVs over brake pump Sept. 12, 2019 1 The recall includes the Chevy Silverado and GMC Sierra (model years 2014-2018), and affects a vacuum pump defect that may make it more difficult to brake at low speeds.

Noticed that there was a recall on this vehicle NHTSA Campaign Number: 19V645000. My concern is that I took my vehicle in back in 2018/2019 for this repair. However my vehicle vacuum pump completely failed the other day where I cannot brake. My vehicle is only at 70,800 and fail to see that if a proper repair was completed back in 2018/2019 for it to fail again a couple of years later with low mileage. While I was able to get this vehicle home safely my concern is that if it failed earlier in the day on the highway I may have cause a serious incident.

The vacuum pump has been recalled on same year, make and model vehicle, yet my particular VIN is falling to the wayside. IT HAS A VACUUM PUMP issue, causing the brakes to malfunction at slower rates of speed. A "computer programming recall" was applied to my VIN however it is the ACTUAL Vacuum pump that is the problem. This should have been covered in all year, make and models. BRAKES ARE IMPORTANT! Reprogramming did not solve the vacuum pump issue that is causing the brakes to fail! This is absolute negligence on behalf of General Motors.

Related recalls

NHTSA investigations

Brake complaints in other Sierra 1500 years