10.0

really awful
Crashes / Fires:
14 / 2
Injuries / Deaths:
2 / 0
Average Mileage:
43,105 miles

About These NHTSA Complaints:

The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.

Get notified about new defects, investigations, recalls & lawsuits for the 2015 GMC Sierra 1500:

Unsubscribe any time. We don't sell/share your email.

« Read the previous 20 complaints

problem #156

Oct 212020

Sierra 1500

  • 91,000 miles
In slow traffic today I almost slammed into the back of a car! the brake pedal went to the floor, and had a shutter feelin terrible!! this is scary and needs recalled now!! I heard it was but came up no with my VIN#?? but my year is supposed to be recalled...this needs fixed im not happy after today..

- Sherrills Ford, NC, USA

problem #155

Oct 162020

Sierra 1500

  • 125,000 miles
During real slow speed my brakes will get extremely hard to press. During this time the truck will become hard to stop. This usually happens when parking or in a drive- thru.

- Sunfield, MI, USA

problem #154

Oct 022020

Sierra 1500

  • 65,000 miles
2015 GMC Sierra 1500. Had the brake pump vacuum recall performed not too long ago. This issue actually seems worse now. I was backing out of a parking spot - low speed was the issue previously- and applied the brake. Nothing happened, no brakes (pedal was depressed) truck continued to back out and I had to jam on the brake again, only then did the truck brake system shudder and engage enough for me to stop. This happens at low low speeds - crawling traffic, parking lots etc.... I got to tap the brake pedal to slow a bit and nothing occurs - or the pedal pushes back at me giving me no brakes. I have to completely disengage the pedal and then forcefully engage the pedal again to get any kind of braking. I have only noticed this at very slow speeds. This is terribly scary when we are crawling down a steep mountain highway with bumper to bumper traffic and I get no brake response. Like I said, the truck went in for a recall that was supposed to have fixed this issue.

- Idaho Springs, CO, USA

problem #153

Oct 132020

Sierra 1500

  • 50,000 miles
Truck continues to lose brakes at low speeds or when backing/pulling trailer. Truck was serviced for brake recall and no change to braking. Consistently looses braking when parallel parking or backing into parking spots along with stop and go traffic brakes go out and you must stand on the pedal to stop the truck. This braking issue happens almost daily.

- Chesterfield, MI, USA

problem #152

Sep 052020

Sierra 1500

  • 150,000 miles
The brakes failed as my son approached an intersection. Subsequently, he struck another vehicle broadside. Extensive damage was sustained to both vehicles. The driver reported that he pressed the brake pedal, but the truck would not stop. After I investigated further for an explanantion, I discovered that there was a recall on his brake system that might explain brake failure. The crash occurred on a city street.

- Bixby, OK, USA

problem #151

Aug 112020

Sierra 1500

  • 60,000 miles
The vehicle is stalling when braking and getting ready to turn. My truck is showing stabilitrak service intermittently and I've almost been in a crash 3 times because of this. The vehicle only restarts after placing in park. This is not safe when in traffic. There seems to be no recalls and no known cause. Someone is going to die if GM doesn't fix this. I've been on forums and it's a common problem. It should be fixed by GM if it is so common. This happens when approaching cross traffic at an intersection and I lose all control of steering braking and power to the truck.

- Gillette, WY, USA

problem #150

Jun 012020

Sierra 1500

  • miles
Having difficulty breaking during on and off parking mode in a stationary position. When I reverse or move forward after changing to either revers or drive gear my truck seems to take longer to break, and almost feel that I don't have control of the vehicle. Its kinda scary to be honest not having control of the breaks. The breaks do better when I'm driving like in the expressway with out any problems. However, when I park in the house or in a general parking lot my truck antilock system doesn't seem to work very well. I have already taken my truck for a recall service at a GMC dealer known as luke fruia in brownsville Texas 78521 but don't see any difference. Feels like they just didn't fix the problem. I already took the truck to a certified mechanic and said that the break fine so I think its the antilock system not working. Im scared driving the truck and fear I might get into a collision or crash due to my antilock breaks not working appropriately. To be honest, I feel very unsafe driving this vehicle so I have been using my Toyota car. Please, need your help on this matter. Thank you

- Brownsville, TX, USA

problem #149

May 142020

Sierra 1500 8-cyl

  • 60,000 miles
Braking issue. While traveling in a drive thru, vehicle brake pedal went to the floor, pulsated some, and required extreme effort to stop. This occurred during subsequent braking incidents while moving and stopping in the drive-thru. After leaving, brake pedal felt ok. Googled symptoms which matched my circumstances and listed a recall. However, there is no recall listed on NHTSA. Seems a little troubling as this appears to affect 3.4 million GM vehicles.

- Springfield, OH, USA

problem #148

Mar 032020

Sierra 1500

  • 74,000 miles
Virtually unable to depress brake pedal at lower speeds - total brake failure. "no recalls available" according to the dealer database, but this is absolutely the same brake recall issue they refused to address for a few years until 2 people died.

- Morrow, OH, USA

problem #147

Feb 232020

Sierra 1500

  • 83,300 miles
While parking in reverse at low speeds, the brakes became really stiff and was barely able to stop.

- Soledad, CA, USA

problem #146

Feb 122020

Sierra 1500

  • 83,000 miles
During parking (low speeds) my brake pedal began making noise. When stopping in the parking spot, the brake pedal was very stiff and could only press it down 1/2"-1", barely able to stop.

- Richmond, KY, USA

problem #145

Jan 222020

Sierra 1500

  • miles
Brake pedal gets hard to push or trying to stop.

- Taylor Mill, KY, USA

problem #144

Jan 242020

Sierra 1500

  • 34,528 miles
The brakes at slow rate of speed become very hard to operate and push. Made appointment with GMC dealer for service (sched for 1/31).

- Guntersville, AL, USA

problem #143

Dec 312019

Sierra 1500

  • 68,000 miles
While pulling into a parking lot ant a friend apartment I was turning into a parking spot when the truck completely died causing no power steering or braked nearly causing me to hit his neighbors car.

- Bakersfield, CA, USA

problem #142

Nov 222019

Sierra 1500

  • 66,000 miles
When exiting from one highway to another in heavy traffic were breaking was required, my trucks power steering and power brakes had completely gone out. I was on a straight track for a highway patrol who was standing outside his vehicle along with another motorist. After fighting to steer the truck while trying to brake to avoid hitting other motorists I realized that the truck had also died. Shook up and scared I started the truck and began to drive away with the officer yelling what the hell are you doing. The truck has done this several times. Three of which almost resulted in an accident. It has been in the dealership were they told me it was a high resistance in the negative battery cable which was replaced and resulted in no change.

- Bakersfield, CA, USA

problem #141

Dec 162019

Sierra 1500

  • 65,000 miles
The contact owns a 2015 GMC Sierra 1500. The contact received a recall notice for NHTSA campaign number: 19V761000 (electronic stability control, service brakes, hydraulic, service brakes). The contact took the vehicle to finnegan Chevrolet Buick GMC (26529 southwest fwy, rosenberg, tx 77471, (281) 342-4200) to be serviced for the software update. After the contact had the vehicle repaired per the recall, while driving at a low rate of speed, the brakes failed to operate without warning. The vehicle was towed back to the dealer where it was diagnosed with a faulty brake vacuum pump. The manufacturer was notified of the failure and did not assist because the vehicle was previously repaired per the recall. The vehicle was not repaired. The failure mileage was 65,000.

- Rosenberg, TX, USA

problem #140

Oct 302019

Sierra 1500

  • 78,000 miles
The contact owns a 2015 GMC Sierra 1500. While the contact was driving approximately 35 mph, the preceding vehicle stopped abruptly. When the brake pedal was depressed, it traveled to the floorboard. The contact started to pump the brake pedal; however, the vehicle crashed into the rear of the stopped vehicle. There were no injuries, but the contact stated that he felt a bit sore. A police report was filed. The air bags operated as intended. The vehicle was towed to quebedeaux Buick GMC (located at 3566 E. speedway boulevard, tucson, AZ, 85716) to be diagnosed and repaired. The contact was informed that there was a failure with the brakes, but was not given a definitive diagnosis. The contact stated that the estimate for the repair was $22,000. The repair was still pending. The vehicle was included in NHTSA campaign number: 19V645000 (service brakes, hydraulic). The manufacturer was not informed of the failure. The approximate failure mileage was 78,000.

- Oro Valley, AZ, USA

problem #139

Sep 212019

Sierra 1500

  • 265,000 miles
When braking the pedal gets really hard. When backing my small boat in the lake I have had to stand on the brakes to get it to stop. Hoping truck and boat along with myself would not go down. Very scary. When the first initial push it seems fine but then they go. Forwards you can tell they are not right and you had better stay your distance from anything in front of you. After reading all the other complaints this is crazy there has not been a recall don't think a smaller man or woman could have prevented the hole thing from going in the water. Love the truck we all have problems. Confront them and get it right. Still love GMC. Maybe not GMC board though. Man up before someone looses a loved one.

- Valley, AL, USA

problem #138

Oct 092019

Sierra 1500

  • 105,000 miles
The contact owns a 2015 GMC Sierra 1500. The contact received a recall notice for NHTSA campaign number: 19V645000 (service brakes, hydraulic). The vehicle was taken to nelson hall Chevrolet (1811 S frontage rd, meridian, ms 39301, (601) 621-4593) where it was repaired. Afterwards, the brake pedal became difficult to depress. The contact stated that the failure recurred three times. The vehicle was not taken back to the dealer for repairs. The manufacturer was not made aware of the failure. The failure mileage was approximately 105,000.

- Lawrence, MS, USA

problem #137

Aug 012017

Sierra 1500

  • 110,000 miles
The contact owns a 2015 GMC Sierra 1500. The contact received a recall notice for NHTSA campaign number: 19V645000 (service brakes, hydraulic). The contact stated that the brake pedal was depressed to the floorboard; however, the vehicle failed to immediately come to a complete stop. While the brake pedal was depressed, the vehicle unintentionally accelerated. The contact mentioned that the vehicle was placed into neutral to keep the failure from occurring. The vehicle was taken to mckinney Buick GMC (3950 S central expy, mckinney, tx 75069, (469) 804-2338) where the vacuum pump was replaced, but the failure recurred. The manufacturer was made aware of the failure. The failure mileage was 110,000.

- Whitewright, TX, USA

Read the next 20 complaints »