Loss of braking power. Hard, stiff brake pedal typically occurs at slower speeds or while repeated braking in a short time frame. This has happened sporadically over the lifetime of the truck.

- Castro Valley, CA, USA

The brakes loses pressure at low speeds. The pedal feels soft. There is no boost to the brake pedal. This makes breaking very difficult. There are no warning indicator lights on dash to notify of probem

- Oxford, MA, USA

On several occasions the brakes stopped working correctly. The brake pedal became extremely difficult to push down and would not stop the truck within the normally expected stopping distance. Most of the time the brakes worked perfectly fine - this issue seemed to happen randomly, but after it happened enough times I realized it was only happening at slow speeds. It happened to me in a couple parking lots, the drive-thru at mcdonalds, and while backing up a trailer. These incidents were separated by many months, with the brakes fine in between. It wasn't until I received the service bulletin letter from Chevy that I fully realized what was going on. I immediately took the truck in for service and the technician was able to verify the problem. They replaced the vacuum pump and the brakes have been fine since. Chevy would not cover the cost because I was beyond their 72,000 mile limit (although the problem first started before I was at that mileage), so I paid $561 out of pocket to have the new pump installed. I feel this is a serious safety issue that should be addressed with a recall. I realized the seriousness of it the last time it happened to me which was when I was backing up the trailer for my kids boy scout troop and found myself unable to stop quickly. I had to leave the trailer where I got it to stop instead of where we were trying to place it.

- Hinckley, IL, USA

Unexpected total loss of braking while baking up, then hard brake pedal with no travel going forward. I was at a complete stop put vehicle in reverse to back trailer in and all of a sudden brake was completely hard with not pedal travel extremely hard pressing on brake cause extremely marginal stopping power vehicle slowed slightly.

- Mounds View, MN, USA

Brakes go out numerous times and it is hard to stop even when the brake pedal is pushed all the way down on the floor. This occurs on the roadways and parking lots in heavy traffic/ congested areas.

- Buckeye, AZ, USA

When driving at low speeds it hard to stop, the brake get hard and the vehicle is harder to stop.

- Newark, NJ, USA

At low speeds (such as in parking lots, at traffic lights, stop and go traffic, ect.) I lose brake assist, making it extremely difficult to stop.

- Milaca, MN, USA

While backing my truck up at slow speeds if I press the brake pedal 3 or more times my brake pedal gets hard and vehicle will not stop with no warning lights my truck almost went into lake

- Auburn, NY, USA

While braking at low speeds the vehicle loses power assist to the braking system making it hard to stop. Most times I have been in a parking lot parking, however I was in baltimore city traffic last week and the problem happened. Kinda scary. Any help would be greatly appreciated.

- Baltimore, MD, USA

At low speed in a parking lot or in out of a parking spot the brake pedal intermittently becomes excessive and non-functioning. Vehicle needs to roll to a stop on its own. Once stopped and put into gear pedal functions again. This has now happened 4 times in the last 6 months. After doing a search online I see a number of other owners have reported this issue. Seems to be a bad vacuum pump. Wanted to report it as well hoping it will lead to a safety recall.

- Omaha, NE, USA

At time when driving slowly the brakes feel hard which makes it hard to stop

- Wayland, MA, USA

I've experienced the same issues that numerous people are reporting and also received the letter from Chevy/GM in regards to the brake failure at slow speeds. I've had this issue occur at least 3 times in the last couple of years. Didn't realize it was as big of a known problem until conducting additional research. Want to ensure my voice is heard/known in the larger complaint that is developing. A recall should be issued. This is a scary situation when this occurs. Simply turn off truck and start it up again and the immediate problem goes away. However the issue occurs without any warning and could definitely lead to an accident.

- Ofallon, MO, USA

Brakes become difficult to operate and/or inoperable on 2015 Chevy Silverado 1500. Typically occurs at low speeds when parking. This has happened numerous times over the years. This has caused me to back into a parked vehicle and has caused many near disasters when positioning the camper. I have just received a notice from GM that they have acknowledged the problem, but are not taking full responsibility. They are offering to make some repairs under a "special coverage program, " which excludes my vehicle due to mileage. This should be a full and complete recall for all vehicles effected.

- West Bridgewater, MA, USA

I lose the power brakes if I touch the pedal at low speed more than a couple of times. It happens frequently while driving in bumper to bumper traffic and when backing into a parking spot. It is a complete loss of the power brakes and ir barely stops.

- Brunswick, OH, USA

On 12/15/2018 my brake vacuum pump went out. I had it replaced at a dealership. Total cost $1506.56. Master cylinder, brake booster, and a connecting pipe had to be replaced also. April 2019, I receive a letter from GM, describing this issue and saying if I have less than 72,000 miles or bought it new within the last 6 years, whichever come first, they will fix it. Brakes are a very serious component. This problem dates back to the 2014, S. I feel GM should reimburse me for my repair cost, since the problem came from their plant. I have more miles on my truck than they say they will cover. Brakes and the components are things they should cover. I have invoices and proof that I paid these expenses. Every person pays hard earned money for a new vehicle. Manufacturers should be required to back their vehicles. I was driving on a side street when this pump went out. I had all I could do to stop it, using both feet on the brake pedal. Thank you for your time.

- Gladstone, MI, USA

The contact owns a 2015 Chevrolet Silverado 1500. While driving down a hill, the brakes failed and the vehicle slid before finally coming to a stop. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and no assistance was provided. The failure mileage was 72,425.

- Diboll, TX, USA

The contact owns a 2015 Chevrolet Silverado 1500. After accelerating from a stop and attempting to brake, the vehicle failed to stop. The contact almost crashed into the rear of a police cruiser. The vehicle was taken to chris myers gmv Dodge (27163 us-98, daphne, al 36526, (251) 621-8885) where it was diagnosed that new brakes were needed. The vehicle was not yet repaired. The manufacturer was not made aware of the failure. The failure mileage was 32,382.

- Baymintte, AL, USA

When backing down a steep incline, there is a complete loss of power brakes. I can barely stop the vehicle when backing down my driveway. This will be a safety issue when I back a boat into water. The dealer advised replacing the vacuum pump and hose with new design.

- Chattanooga, TN, USA

When at a slow rolling speed brakes are extremely hard to brake, mainly when in parking lots or backing my boat in the boat ramp its extremely scary and seems like the truck wont stop rolling. This is so unsafe and scary. Its almost like the brakes dont work. But im pretty sure its the vacuum pump brake system.

- Hampstead, NC, USA

When I go slow the break pedal get so hard I can stop

- Modesto, CA, USA