While driving at slow speed (15 mph and less) in shopping center parking lot stop and go situation the brakes would not stop the vehicle. Brakes seemed to be grabbing and petal became excessively hard. Dealership replaced vacuum pump & sensor, labor and parts $605.41. Mileage 56827

- Warrior, AL, USA

I believe Chevrolet 1500 series trucks are not manufactured with brakes that stop the vehicle soon enough. I have a problem when I have driven my truck for a while, long enough that the brake system gets pretty warm, or down hills, ,( not steep hills). The brakes do not not brake very well, along with making a grinding - rumbling noise from the front of the vehicle. It also feels like like the brakes are metal on metal. I have asked the dealership to check into it, and the say, nothing wrong, brakes have lots of brake pad left. When I ask them if they have heard of any issues regarding brake fade, and noise, they say no. Last year GM came up with a front brake upgrade kit in their parts department, which is a 6 piston calliper and upgraded pads for the truck, but it costs $4000. On the 2019, they have added this upgrade kit as an option when you build and price a new truck. That tells me that that they know there is an issue with their trucks, but they won't admit it.

- Florence, AZ, USA

If you continue to apply brakes the pedal becomes rock hard. Vehicle will continue move forward or backward no matter what pressure you apply to pedal. The vehicle will move several feet before coming to a stop. This occurred to me while at a city crosswalk. Huge safety concern with vehicle not stopping.

- Stanardsville, VA, USA

The 8th of November 2018 while traveling through austin, tx - in heavy traffic; I nearly rear-ended another vehicle - the brakes got real hard, but the vehicle kept rolling. The brakes acted like the engine was shut off. I tried them again after resumed speed- and I tested them - on the third pump - they were rock-hard again. A vehicle shop in san antonio was able to consistently replicate the problem. It was a bad vacuum-pump-assist. It cost me $455, it could have been worse, the mechanic told me that oil from the engine could have damaged the vacuum booster and/or the master cylinder. He told me Chevy knows about it - #pit5361B - but I never knew about it - I almost rear-ended another vehicle. Vehicle had 48,500 miles when it occurred.

- Tuttle, OK, USA

Vacuum pump failed resulting in property damage

- Oak Grove, MN, USA

I own a 2016 Silverado with a faulty brake vacuum pump. The issue was rectified by a GM dealer, and service records are attached. I am filing a compliant to ensure NHTSA is aware of a dangerous defect in this truck. The issue became apparent over the course of weeks. Initial problems included an audible clicking noise once the brake was depressed. As the problem progressed the vehicle would not be able to brake when trying to brake on inclines as flat as 2 degrees. In fact, brakes would fail and ABS would kick in when backing out of my driveway. Youtube video summarizes issue https://M.youtube.com/watch?V=0krkyevbcu0

- Lancaster, NY, USA

I have a 2016 Silverado 1500 that having trouble with my breaks and powertrain. I try to stop the other day and the pedal got stiff and wasnt able to come to a complete almost hitting a pedestrian. Its been going on for awhile too. And my powertrain when I in the street or highway going 60mph it tends to shoot the rpms N go down and like the transmission want to shift down on its own.

- Frost, TX, USA

On 3 separate occasions, my brakes failed me causing me to almost crash. The first time, I was stopping at a stop sign from going less than 5mph (I was inching up after about 10 cars were in front of me). I had my foot on the brake the whole time and never accelerates and all of a sudden, the truck wouldn't stop. I was on about a very slight downhill (maybe 1 degree). It felt like the brakes became slippery and just sounded awful. I came within a few inches of the car in front of me and almost rear ended them. The next occasion, I was going downhill and to the left and has to stop. The truck did the same thing where the power brakes seemed to fail or the brakes just didn't want to work. This time I was going about 35mph and had to swerve into the wrong lane to avoid crashing. Thankfully nobody was coming otherwise I would have had to rear end the person in front of me. I was probably 5 or 6 car lengths behind him when we both hit the brakes at the same time. The 3rd time this happened was this morning in the same spot as the second incident. This time, I was testing the brakes. I'm very scared that something is going to happen because of this and would like to get this fixed asap. I bought this GM certified vehicle about 1 month ago and should be in good mechanical condition. These 3 incidents happened in a 10-14 day span and 2 times in the past 3 days.

- Ridgefield, CT, USA

While attempting to brake at low speeds the brake booster and pedal failed causing me to use excessive brake pressure to get the the vehicle to stop. Due to this I was almost involved in a crash the vehicle only has 50K miles.

- Anna, TX, USA

I stopped to eat at a restaurant and my brakes got extremely hard and my truck did not stop I used both feet to jam the brake down as hard as I could to stop. There was a car in front of me but it was pulling out as I pulled in. My truck would have struck this vehicle if it weren't for them pulling out. I went directly to a nearby mechanic to see what is going on with my truck. They told me the vacuum pump is faulty and that GM has a bulletin about this issue. So GM is aware of the issue and knows their vehicles are dangerous to its customers and the public. But they have not ordered a recall to fix the faulty vacuum pump.

- Humble, TX, USA

Brake pedal gets really hard and has become a safety issue with everyday driving. Turn off engine and resets and works again.

- Laredo, TX, USA

When backing up lost power brake assist, also when pulling forward, was dropping my boat off in storage causing my to use the brakes a lot when backing up, no power assist when pulling out of garage when leaving, when going down road brakes came back to operate as normal. Now after backing and braking 3 times power assist is gone but returns when driving normal. Have appointment at dealer tomorrow for cal problems (dashboard says cal and smartphone remote start does not work) will have brakes checked.

- Bingham, ME, USA

The brakes have failed to stop the vehicle in 2 separate occasions in speeds less than 5 mph. The has been reviewed by a certified Chevrolet mechanics and they since they cannot replicate the issue, they don't feel it is a major concern. I want to ensure that others are aware as I have stopped driving the vehicle due to the safety concern. I am currently working with Chevrolet to turn the vehicle back into them since I do not feel safe driving it.

- Perkiomenville, PA, USA

While pulling into a parking space the brakes lost all power assist and the brake pedal was completely stiff. I had to press the brake pedal extremely hard to prevent hitting the car parked in front of me. I was moving slowly and this condition came without warning. Moments earlier the brakes had performed normally. This vehicle has 44,000 miles.

- Gastonia, NC, USA

The contact owns a 2016 Chevrolet Silverado 1500. While driving 85 mph, there was an uncontrollable vibration coming from underneath the vehicle near the transmission. On several occasions, while driving various speeds, the brake pedal was depressed and failed to slow down or stop the vehicle. The contact stated that the vehicle occasionally also pulled to the left or the right when the brake pedal was depressed. Furthermore, while driving, the vehicle stalled and shut off on four separate occasions. The contact was able to restart the vehicle after several attempts. The vehicle was taken to wommack Chevrolet (currently known as North park Chevrolet castroville, located at 1955 us-90, castroville, tx 78009, (830) 931-9200) where it was diagnosed that the brake calipers, brake pads, brake lines, and torque converter needed to be replaced. The vehicle was repaired; however, the failure recurred. The contact was advised to turn off the ABS and traction control and the vehicle would perform better; however, the contact refused. The manufacturer was notified of the failures. The contact was provided case number: 84425679432. The approximate failure mileage was 6,967.

- Castroville, TX, USA

Was driving on city street, applied brakes and became really hard. It was hard to stop. Pedal was really hard. Had to press with both feet.

- South Gate, CA, USA

Brakes consistently turning rock hard while driving at low speeds in both the forward and reverse position. First occasion 13,000 miles. Dealer denys a problem. However it improved slightly after the service call. Still an ongoing issue and has almost caused me to be in several accidents. At 25kmiles now. Occurs whirle slowly on driving on roads & parking. Very dangerous goin down hills or in bumper to bumper traffic or prepareing to merge or turn onto roads. Bringing back for service this week. Will update what action they do/ don't take.

- Bethlehem, NH, USA

Brake pedal became extremely hard to push. Unable to stop truck that was in motion in a parking lot.

- King, NC, USA

The brakes don't hold at times. Has happened while backing up and during regular driving conditions. It has only happened during city streets or during stop and go driving. Feels like my brakes never engage but the pedal is pressed fully.

- Glendora, CA, USA

Brake vacuum pump issues dealers aware of issue & have an updated vacuum pump available. Transmission issues were it down shifts hard at times & has a bad shattering when upshisting at low speeds took it 2 times before warranty expired said was just a software update. Never took care of issue.

- Fontana, CA, USA