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
Brakes failed. I was backing into my garage and the pedal became really hard to push. I almost did not get stopped before i hit the wall.
ODI 11195905
Service Brakes
I was backing up and the brake pedal got hard and would not stop the truck. I tried to go forward and the same thing happen.
ODI 11128867
Service Brakes
Vacuum pump vachose assy brake booster and mastercyclinder failure which cause brake failure while driving. Happened several times until 'service trailer brake' light came on. No brakes, no way to press down pedal. Gmc refuses to assume responsibility for repair. Cost: $1311.16
ODI 11123463
Service Brakes · Steering
Tl* the contact owns a 2015 gmc sierra 1500. While driving at a low speed or while idling, the brake pedal was depressed and failed to engage. The contact stated that the failure was also evident while driving in reverse at a low speed. The vehicle was not diagnosed or repaired. The local dealer and the manufacturer were not notified. The vehicle was not included in nhtsa campaign number: 14v339000 (steering,…
ODI 11153709
Service Brakes
Tl* the contact owns a 2015 gmc sierra 1500. The contact stated that the vehicle failed to pass state inspection due to master cylinder, vacuum pump, brake booster, and hose leakage. The dealer was not contacted. The manufacturer was notified of the failures. The vehicle was not repaired. The failure mileage was approximately 33,000.
ODI 11111834
Service Brakes
Brake pedal becomes hard and non efective when attempting to park or at low idle speeds on numerous occasions nearly causing serious harm to bystanders and property. This is a major problem with gm trucks and do not know why a recall has not been issued to protect the public from serious injury.
ODI 11205207
Service Brakes
When brakes are applied the pedal is hard and vehicle does not stop. It seems to happen when going slow for example in parking lots etc. I have read other articles where people are experiencing same thing at high speeds. It does not happen all the time, but it started 7/1/2018 and i've experienced this four times now. Took to dealer this morning they refused to look at articles explaining what i've found.
ODI 11110451
Service Brakes
Loss of power brakes when creeping and applying brakes several times in a short time. Tested and changed vacuum pump.
ODI 11165037
Engine · Service Brakes
When i first got the truck the brakes operated perfectly fine after about three days the brakes on the front of the truck would lock up while i was driving and would not release. After two sets of calipers two sets of brake pads a set of rotors a two weeks go by with the mechanic trying to figure out what is wrong with this truck. They then replace the brake master cylinder, there was no improvement. Turns out to be…
ODI 11181719
Service Brakes
While in motion the brake pedal goes hard and is difficult to stop. I believe this is the cause of a low speed incident i had earlier this year. The issue occurres mostly at slow speeds in stop and go traffic. If feels like the brake booster fails and the pedal is bottomed out. It happens frequesntly while hauling a trailer in reverse. Very dangerous situation.
Crash reported
ODI 11100297
Service Brakes
BRAKE FAILURE DUE TO BAD VACUUM PUMP
ODI 11094026
Service Brakes
I was driving down i20 in dallas in rush hour traffic, the traffic was heavy but moving at 70 miles an hour. I saw brake lights in from of me, when i pressed the brake to slow down the brake pedal was hard, i could not press it with one foot and i could not slow down. I finally was able to slow down by putting both feet on the pedal with all my weight it felt like it was forever before i was able to slow down. I…
ODI 11088926
Service Brakes
I bought this truck in dec.2017 sense march/ april of 2018 i have experienced at least 8 times maybe more and just last week. The brake pedal had lost it's power assist. This seems to happen in very close slow speed traffic or in parking lots when parking. The way i solve this problem is to put truck in neutral and increase rpm's or you 2 feet on the brake pedal ithe power assist will soon return, these situation…
ODI 11154195
Service Brakes
While driving in stop and go traffic speeds there have been a number of occasions that the brake pedal goes hard and the truck will not stop. I have noticed on other forums that this seems to be a common issue.
ODI 11091924
Seats · Service Brakes · Unknown Or Other
When i press on the brakes, it feels as though the master cylinder is gone and it is the manual type drum brakes that has air in the line. It takes everything i have to press them and pray it stops!! The vehicle is always in motion when detecting this problem and seems to occur more repeatedly if the brakes are pump quickly in succession before applying brakes or when the brakes are pressed for an extended amount of…
ODI 11153931
Service Brakes
Brakes loose boost at idle after towing trailer. I towed a heavy trailer and then dropped it in my yard. When i went to move my truck down my driveway and into my garage i had no brake boost unless i revved the engine.
ODI 11080863
Service Brakes
While driving at slow speeds if you tap the brake pedal it won't depress and the truck will keep rolling. This happens when i'm trying to park usually. I was backing in my driveway and it didn't stop after taping the brake pedal 3 times. I hit the telephone pole with rear bumper which bent the body of the left rear fender enough to cause the tailgate to not open. My gmc dealer replaced the faulty booster pump for…
ODI 11191657
Service Brakes
Tl* the contact owns a 2015 gmc sierra 1500. The contact stated that when the brake pedal was applied, the vehicle failed to respond. The contact had to apply force to the brake pedal to stop the vehicle. Laura buick gmc (903 n bluff rd, collinsville, il 62234, [redacted]) diagnosed that the brake vacuum pump may need to be replaced. The vehicle was not repaired. The contact was uncertain if the failure was related…
ODI 11170633
Service Brakes
Low speed breaking pedal hard vehicle will not stop can hear clicking noise condition worst while in reverse almost caused 3 accidents contacted dealer they say they know of the problem and cost to fix is around $1000 if this is such a common issue like my dealer said why do i need to pay to have it fixed it's a safety issue that gm knows about. This issue has been on going for over a year with my truck.
ODI 11230460
Service Brakes · Steering · Vehicle Speed Control
Vehicle is shutting off at any given speed, ie. 35 mph in town or 70 mph on a highway with oncoming traffic. When vehicle shuts off, loss of all control of the vehicle takes place. No brakes, no steering, nothing until the vehicle randomly turns back on. This is not a consistent occurrence to know when it is going to happen or be prepared for it to happen. I watched my husband shoot across the road into the other…
ODI 11139628
Service Brakes
I was following my daughter who was exiting the gas station and pulling out onto route 149. As she pulled up to route 149 she stopped to check traffic. I was behind her in my 2015 gmc sierra 1500, going approx. 2 mph. When i hit the brakes, nothing happened. The truck kept moving forward and i hit the rear of my daughters car, cracking the rear bumper. No damage to the truck because i was only going a couple mph,…
Crash reported
ODI 11064080
Service Brakes
Takata recall when backing up brake pedal is not at its normal pressure seems to be all the way down so have to press brake harder to stop the truck when i shift to drive forward same thing applies. After truck has been off for some time parked then start to drive brakes seem to be working fine.
ODI 11055232
Service Brakes
Brakes became hard to depress and engage while vehicle was moving. Almost crashed vehicle. Afraid to drive. Brought to dealer. Said it was bad brake booster. After doing some research, found out should replace vacume pump, master cylinder, hose line, etc., so i did. 44k miles, 3 year old truck, happened on /12/10/17 brought to dealer garber gmc in florida for $1300 repair on 12/11/2017. No warning signs when this…
ODI 11054123
Service Brakes
I was pulling into a parking spot at work (slow speed) and i could not stop the truck. I kept applying more and more pressure to the brake pedal and it did not stop the truck. The truck hit the curb and stopped, luckily there wasn't a another car as i would have hit it. It caught me a bit off guard as i was trying to figure out what just happened. I backed the truck up about 10 feet, brakes worked fine in reverse,…
ODI 11053431
Service Brakes
When brakes are applied the pedal is hard and vehicle does not stop. It seems to happen when going slow for example in parking lots etc. I have read other articles where people are experiencing same thing at high and low speeds. It does not happen all the time, but it started 11/2017 and i've experienced this four times now and the wife as well.called gm the other morning was told there was no recall for this issue…
ODI 11141329
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.