Vacuum issue with brakes. Backing up vehicle with utility trailer when brake pedal is pressed their is hesitation and lack of ease when pressing pedal. Then if press pedal after that there is no movement and pedal is like pushing rock with foot, no softness, no movement all. Have noticed this occasionally for the past 8 or 10 months before finding this place here to note my issue

- Palestine, TX, USA

At low speeds the brake pedal is non-responsive and pulses while making a noise. It has happen twice, once in a drive thru and another time backing out of a parking spot. Appears to be a vacuum assist issue. Once the truck was place in neutral and the RPM's were increased the issue went away

- Clermont, FL, USA

Supposedly the brakes have been fixed for the recall, however, if I am driving as low speeds like in a parking lot, the ABS will kick in causing me to not come to a stop when needed. I have almost hit several vehicles due to this issue. I have issues with the radio working, specifically being able to adjust the sound level. I have issues with the mirrors being able to move like they should. Both of the electrical issues are permanent, it does not matter if I am parked or driving, they do not work at all. This is by far the worst vehicle I have ever purchased. The brakes have been occurring for years and there was no change when it was brought in for the recall. The most recent issue is now my evap system needs to be fixed. I can only imagine what that will cost to fix on a vehicle that only has 100,000 miles on it. Can't wait to get that bill!

- Newton, WI, USA

Backing out of my driveway in reverse applied the brakes and brake went all the way to the floor and did not stop the vehicle like it should. This vehicle had a recall already on it for the vacuum pump failing causing a loss of braking power. I got the recall remedied ( supposedly by increasing the vacuum pressure but now 6 to 7 months later this is a huge issue it is extremely dangerous driving in low speeds down residential areas with kids playing etc and your brakes fail you this ultimately can cause very serious injury if not death. And to know they put a recall out that supposedly fixes the issue and it dosent fix anything makes it worse because your cheap and dont want to replace a vacuum pump is utterly disturbing and disgusting

- Oklahoma City, OK, USA

My truck still has the hard braking issue even though the recall has been performed. I received a second letter and took it back into the dealer and they said the reprogram had already been performed and that was all they could do. I had it at the mechanic for service and was told I was going to need a new brake vacuum. He experienced the same hard breaking issue when he was test driving it. I travel and drive my truck a lot and makes me very nervous this is going to cause an accident.

- Seminole, FL, USA

Low speed brake failure. Creeping up to a stop sign and and not being able to stop due to brakes being hard to push. There was a recall for this exact problem but when the dealer typed in my VIN # the decal wasn't listed.

- Norwood, NY, USA

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

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

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

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

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

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

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

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

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

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

- Soledad, CA, USA

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

Brake pedal gets hard to push or trying to stop.

- Taylor Mill, KY, USA

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

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