2015 GMC Sierra 1500 Service Brakes Problems
- 140
- Owner complaint records in our dataset
Records are owner complaints, not a measured failure rate.
Owner complaint recordsComplaint records reflect reports in our dataset and do not measure how frequently the problem occurs across all vehicles.
Among these 140 stored complaint records:
- 11 indicate a crash
- 0 indicate injury
- 1 indicate fire
What owners report
- brake pedal · 80 records
- vacuum pump · 42 records
- brake booster · 11 records
- brake vacuum · 10 records
- pedal became · 8 records
- pedal becomes · 8 records
Mileage in stored records
| Band | Records |
|---|---|
| 30–60k mi | 69 |
| 60–100k mi | 40 |
| 1–30k mi | 15 |
| 100–150k mi | 8 |
Complaint records
Owner-submitted complaint content, presented as stored.
Service Brakes
I pulled into a parking spot and lost the ability to stop my truck. The brakes locked up and i couldn't push down on the brake pedal hard enough to get the truck to stop. I was going slow enough to use the curb in the spot for it to stop me from hitting anything. I had my car towed to a repair shop and they confirmed that the brake vacuum pump failed and had to be replaced along with the master cylinder and because…
ODI 11156752
Service Brakes
Brakes become very hard to press in traffic and while backing up. The condition worsens with multiple presses of the brake pedal. The stopping distance of the truck in increased even with increased pressure on the pedal. The truck has 28,463mi. I contacted a dealership and they will not cover this repair. I have ordered the parts and will perform the repair myself. Gm has issued a service bulletin on this pit5361b.
ODI 11154041
Service Brakes
Stopped to take a break while traveling. As we went to exit the parking area and stop at the stop sign, no real braking power. Had to put both feet on the pedal and press into it to come to a stop. We were traveling at about two mph. No warning there was a problem. One minute we had good brakes, the next, not. Luckily there was no traffic, as we were unable to stop at the stop sign and finally came to a stop in the…
ODI 11153460
Service Brakes
On november 17th 2018 my brakes went out on a 2015 gmc 1500 at 35 mph stopping at a red light which just turned green .i switched lanes and almost crashed. I had my grandchildren in the vehicle along with my wife. The vehicle need to be towed to a gmc dealer. The diagnoses was the vacuum pump total failure the brake pedal was hard with no stopping power. My gmc had 34000 miles on it . Now i have a tow bill and…
ODI 11155777
Service Brakes
Hard brake pedal - "no brakes" first occurrence in paring lot 2016 timeframe . Was backing into a spot that was slightly downhill, no brakes , vehicle hit curb and stopped. Pulled forward no brake, eventually they came back . Complained to gm hotline - they responded with questions and i told them i took truck to dealer, i believe dealer replaced master cylinder second occurrence may 2017 driving on i-75 - 18 year…
ODI 11153479
Service Brakes
Brake vacuum pump booster. First started when driving under 5 mph. The brakes were hard to push down and would not stop the truck properly. Did this for approximately 3 months. Then driving getting off the interstate and applied brakes going 60 mph the brakes would not work. Could barley stop. Same issue has when driving slow. Now the brakes will not work at any speed. They truck is undrivable until it gets fixed.
ODI 11190513
Service Brakes
Brake system failure. Brake pedal would depress to the floor and stop working as the truck was slowing down. This would happen in all braking situations. I took the truck to the dealership and they stated the vacuum pump failed. $1142.67 for repair! Nov 15/ 2018.
ODI 11154228
Service Brakes
Complete brake failure with no warnings. Dealer diagnostic reports frozen vacuum pump. The condition was encountered in motion on a county rd.
ODI 11153603
Service Brakes
I first noticed the issue on the morning of saturday, november 10th as i was backing into a parking spot. As i was backing in, i noticed all of a sudden the brake pedal was on the floor and i was about to plow into a curb and threw the truck in park. I didn't think anything of it. The second time it happened was one day later as my fiance and i had just completed a [redacted] home. I was pulling into the parking lot…
ODI 11150901
Service Brakes
In stop and go traffic on highway at low speed experienced brake pedal stiffening and difficulty stopping. Reoccurred several times during same traffic pattern but only at the low stop and go speed. Problem occurred with no warning. Brakes worked as normal under other circumstances. Forum research suggested this was a vacuum pump and occurred to other models of same year and millage. Vacuum pump (internal) failure…
ODI 11151600
Service Brakes
When going under 15mph brake pedal becomes hard and doesn't work. Vehicle has 50k miles. Brake booster declared bad by mechanic. This issue almost casued accident.
ODI 11145304
Service Brakes
Truck looses braking ability at low speeds such as traffic or parking lots.
ODI 11145176
Service Brakes
Tl* the contact owns a 2015 gmc sierra 1500. While driving 5 mph, the brakes seized. While driving over 5 mph, the brakes performed normally. The vehicle was taken to baglier buick gmc ([redacted], butler, pa 16001, [redacted]) where it was diagnosed that the vacuum pump fractured. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 49,000. The vin…
ODI 11155673
Service Brakes
Issue when braking that causes the brake pedal to lose power and causes the driver to depress the pedal extremely hard to have the brakes engage. The cause appears to be a faulty vacuum pump that requires replacement. This could be potentially a large safety issue if the pump fails and the vehicle is unable to be stopped in time to avoid a possible collision. This issue has occurred both while in traffic on a city…
ODI 11144904
Service Brakes
The vacuum pump controlling the brakes has failed. When the brake is pressed in stop/go traffic, it will first stop the vehicle, but if the brake is released then pressed again, the brakes will not work and the vehicle continues to roll forward. A mechanical/electrical noise can be heard before this occurs. This is more noticeable on wet roads or roads with a steep decline.
ODI 11143710
Service Brakes
During low speed braking maneuvers while parking in my driveway brake pedal pressure required to stop became very hard. It took both feet on the pedal to actually stop the truck. This would happen daily while backing in to my driveway. Also during normal city stop and go driving it would also require great effort to stop the truck and the pedal would be very hard to press.
ODI 11153655
Service Brakes
At slow speed backing up or moving forward, i lose power assist for braking, having to almost stand on the brakes to stop. This happens intermittently. Street or parking lot.
ODI 11154175
Service Brakes
Tl* the contact owns a 2015 gmc sierra 1500. An independent mechanic called on behalf of the vehicle owner, who is deaf. The contact stated that the brake pedal failed to depress and stop the vehicle properly. The contact diagnosed that the vacuum pump and the brake booster system were malfunctioning. The dealer (gulf coast chevrolet buick gmc, 1901 w. Fm 523, angleton, tx 77515, [redacted]) stated that there were…
ODI 11139614
Service Brakes
At low speeds (parking speed, school pickup lines, creeping traffic speed) the brake pedal will lose all boost pressure. The brake pedal becomes extremely stiff and ineffective. This situation occurred on a few occasions and caused great alarm with myself and my wife. Great potential exists for an accident involving machinery, animals or human beings. The vehicle was taken promptly to the local gmc dealership for…
ODI 11142826
Service Brakes
Experienced an unusual reaction to breaking. A few days later i had brake warning lights on the dash. Took the vehicle to the dealer and they had to replace the cylinder brake master and the brake booster and add new fluid. Which i paid for. Now i see there may be other issues as there are other complaints you're investigating. I want to put mine on record.
ODI 11154281
Service Brakes
Hard brake pedal when attempting to stop, happens on hwy with fast speeds, slow speeds in parking garage and in reverse.
ODI 11139264
Service Brakes
Hard pedal, extremely poor braking response while slowing and during parking of vehicle, especially when multiple pedal pumps are required. Progressively worsening over past 6 months. I replaced vacuum boost pump and problem was corrected.
ODI 11204206
Service Brakes
While driving at highway speed, i entered an off ramp to find no power assist to my brakes. The pedal was extremely stiff. I came very close to having a collision with the car in front of me. I contacted my mechanic immediately, he checked it out and it appears the vacuum pump has failed without warning. I have owned this vehicle since new and have had no problems with it until this issue.
ODI 11132455
Service Brakes
I was pulling a travel trailer at 55 miles an hour, i came over a hill to an intersection and i had lost my brakes. I managed to finally come to a stop. I disconnected my trailer. I went to a local gmc dealership, and they did not have time to repair my vehicle. I took it to an independent repair shop,and they said my vacuum brake booster pump had failed. They installed a new vacuum breaker booster pump for the next…
ODI 11162126
Service Brakes
Brakes appear to lose boost when stopping. Have to press peddle with both feet. This has happened on three separate occasions.
ODI 11154013
Catalog parts for this system
Catalog year/make/model rows for 2015 GMC Sierra 1500.
Catalog fitment does not by itself prove OEM-equivalent compatibility.