Lost ability to brake. Had to press pedal very hard on the brake pedal and felt truck braking is not working. May be related to vacuum pump failure and/or braking system failure.

- Lantana, FL, USA

On my 2016 Silverado 1500 when I am at slow speeds and press the brake pedal it does not stop the truck. The pedal becomes extremely stiff and the only way to stop the truck is the emergency brake or using both feet pressing the brake pedal with all my force. I have found by my dealer that it is a faulty vacuum pump also not covered under warranty.

- Knoxville, TN, USA

Brake effort drastically increased when backing out of parking space. Car was very difficult to stop and pedal would not depress further.

- Mayville, WI, USA

Vehicle brakes fail when traveling at low speeds. Brake pedal will not depress and truck will not stop. Failures happen in forward and reversed. Problem is reoccurring.

- Statesboro, GA, USA

When operating vehicle at low speeds the brake pedal becomes stiff and hard to press down. This causes the truck to continue moving and even caused me to rear end another vehicle causing rear damage to that vehicle and a small dent in my front bumper. This issue does not happen at high speeds but 15mph and under it occurs.

- Evans, GA, USA

Power braking failure. Brake booster/vacuum pump has failure when driving at low speeds (backing/pulling into parking spots, driving in stop & go traffic, etc.). the brake pedal stiffens up, and an immense amount of pressure is needed to stop the vehicle. I have been able to recreate this issue many times in the past couple days, as has the Chevrolet dealership that I purchased it from. This is similar to when a vehicle loses all electrical power and the ABS is no longer active. When the brake is applied (very heavily), and the the pedal stiffens up, the truck still proceeds to move forward or backwards another foot or so prior to fully stopping. This is a huge safety issue, as I commonly drive in stop/go traffic to and from work, as well as park in a parking deck backing up to either other vehicles, or a concrete wall.

- East Palo Alto, CA, USA

Currently experiencing reduced braking capability while at a low idle while in slow moving traffic and backing up. Brake pedal seems to go to the floor and required greater force to stop vehicle.

- Newark, DE, USA

Loss in break power at low rate spell when parking. Felt like the truck lost full power to break system. Only happens when parking. Looks to be a vacuum pump failure. Found no recalls on issue and seems to be a dangerous issue

- Porter, TX, USA

As others have complained about this same issue, I'm sitting in the dealership right now waiting for a new vacuum pump to be installed because my truck will not stop at low speeds pulling in or backing out of parking spaces or driveway. Waiting on actual price but possibly $700 to fix something that should be recalled.

- Charleston, SC, USA

When moving at slow speeds (parking lots, stand still traffic) the brakes lose assistance causing the pedal to become extremely stiff and difficult to depress resulting in the truck being almost impossible to stop. This has been happening consistently for about a month now.

- Glenville, NY, USA

Power braking failure. Brake booster/vacuum pump has failure when driving at low speeds (backing/pulling into parking spots, driving in stop & go traffic, etc.). the brake pedal stiffens up, and an immense amount of pressure is needed to stop the vehicle. I have been able to recreate this issue many times in the past couple days, as has the Chevrolet dealership that I purchased it from. This is similar to when a vehicle loses all electrical power and the ABS is no longer active. When the brake is applied (very heavily), and the the pedal stiffens up, the truck still proceeds to move forward or backwards another foot or so prior to fully stopping. This is a huge safety issue, as I commonly drive in stop/go traffic to and from work, as well as park in a parking deck backing up to either other vehicles, or a concrete wall.

- Raleigh, NC, USA

Brakes are hard at low speed. Pressing the brake at low speed make it very hard for car to stop. No lights turn on the dash at the time of this issue. This happens most during stop and go traffic or when in a parking lot of a store where car is traveling at low speed

- East Palo Alto, CA, USA

When driving at low speeds and on an incline, brake pedal become very hard to push and do not work. This has happened on several occasions and something needs to be addressed with GM. Based on all the complaints on this site, majority of them are for the same reason involving the brake issue. Each occassion vehicle driving at low speeds on city streets and when going down an incline at low speeds.

- Rogersville, MO, USA

Driving in heavy traffic at slow speeds when I applied the brakes to stop, the vehicle continued to move. Brake pedal became hard to depress and with more pressure the vehicle began to slow. The problem happened again while baking up out of a parking stall, the brake became very difficult to depress, with the vehicle stopping after pressing the brake pedal with force.

- Sun City West, AZ, USA

On two occasions while driving at slow speeds in stop and go traffic the brakes did not work properly causing the stopping distance to dramatically increase. As a result I narrowly missed striking other vehicles on multiple occasions. The average driving speed was under approximately 5 mph. In order for the brakes to stop the vehicle the brake pedal needs to be depressed with maximum pressure all the way to the floor. A noise can also be heard which I believed is the ABS. Brake fluid level is not low and no obvious break line leaks were detected. Brakes appaear to function properly at normal highway and driving speeds.

- Oceanview, NJ, USA

I had just gotten home after visiting my parents which is approximately 100 miles (1 hour and 45 minutes) away from my house and I had no issues on the highway with my brakes. The drive was mostly all highway with an average speed limit of 65 and 75 mph. I went to park my truck at my house in which I back into my parking spot at home. When I went to stop, my truck's brakes worked properly but when I put it in reverse to back into the spot, that is when I went to go break, the brakes needed more force applied to the pedal in order to stop the vehicle. I then put my truck into drive to see if the problem was only when the vehicle was in reverse or all the time. I drove it a few feet forwards and back a few times and the problem persisted. General Motors has issued a document (pit5361D) regarding this issue but has not issued a recall. A new vacuum pump was installed by the dealer which resolved the issue but was not covered under warranty.

- Richmond, TX, USA

Backing into a parking spot today at low speed (less than 5 mph) the brake pedal became stiff as a board and would not budge when pressed and the truck would not stop. My truck rolled back into a cluster of bushes and finally stopped. This is a widespread and dangerous issue. A recall needs to take place asap! all of my internet research shows that this is a faulty vaccuum that controls the breaks that fails at low speeds. There have been multiple accidents and very close calls. GM needs to be held accountable for this.

- Atlanta, GA, USA

At slow speeds my brakes are not working, I notice it most when trying to park. It happens sometimes but not always.

- Windfall, IN, USA

Brakes fail to stop at slow speeds ( trying to park or in a drive thru) despite pushing brakes pedal to floor, brake pads are fine started at 34,000 miles now have 52,000 has happened randomly. Chevy states nothing wrong with brakes. However hitting the car in front of me says differently because it wouldn't come to stop lucky was barely moving. Huge safety issue not being resolved.

- Cypress, CA, USA

While driving in stop and go traffic on a city street moving straight forward and inching the brakes to move with the traffic flow I noticed that the brake pedal got very hard and the vehicle was continuing to move forward even though I had all my weight pushing on the brake pedal lifting myself off my seat this happened 3 times before I was able to reach adequate parking. I have taken the vehicle to a certified GM service shop and after inspection they instructed me that I would need to replace the brake system vacuum pump, the brake booster, brake master cylinder and the tubing connecting the items. Resulting in a $1170 repair and the service rep also stated that this would take care of the issue but cautioned the oil and filter changes needs to be maintained according to the manufacturers standards. I have owned this vehicle about fifteen days as of this writing I did by it from a dealer whom said he was unaware of this issue. Why is the NHTSA or whom ever continuing to let the dealers sell theses vehicles with a known safety problem without addressing the proper repairs stated in the tsb pit5361B that GM has sent out to there service centers. Serious accidents could and should be prevented with this issue.

- Larue, OH, USA