Braking ability significantly decreases when in reverse and also sometimes when traveling at very low speeds like pulling into the driveway or into a parking spot. The brake will be fully applied, and vehicle will continue to move. This can cause a very dangerous collision and potentially cause death or serious injury to the vehicle passengers and/or passengers of vehicles encountered. The 'service brake assist' indicator will light up on the dash at times, other times there is no warning light when it happens. I bought this vehicle a little less than 30 days ago (on 12/20/2021) and have had this happen to me multiple times. I have not had it to the dealer yet, but have an appointment set to have it looked at. My father (a diesel mechanic) seems to think it is due to vacuum loss of the brakes. The vehicle can be available for inspection upon request.

- Republic, MO, USA

At lower speeds the brake pedal become stiff making it extremely difficult to stop. Sometimes the antilock breaks will kick in to help, but sometimes that doesn't even stop the truck. On several occasions I have nearly hit other cars because the brakes fail to engage. On one occasion when parking in a multi story parking garage, the truck almost plowed through the side barrier because it wouldn't stop. The brakes also fail when going in reverse at low speeds. It appears that the brake assist vacuum pump is failing as has been reported by a number of other complaints. The brake pads and rotors are all in good shape and the truck has only 68,000 miles.

- Gilbert, AZ, USA

While driving slowly in parking lot, lost braking. I had minimal braking for the next 5 minutes. Message on dashboard said SERVICE BRAKE ASSIST. Which indicates a problem with the brake boost assist system. Further investigation indicates a re-programing of the braking software may be needed. i would like to see this issue of re-programing the braking software a re-call on my 2106 truck. Ref: NHTSA - 19V645 & 20V603

- Fontana, CA, USA

The contact owns a 2016 Chevrolet Silverado 1500. The contact stated that while driving at 5 MPH from a complete stop, the brake pedal was depressed but went all the way to the floorboard and hesitated to respond, causing a 3 feet delay in stopping distance. The brake assist warning light illuminated. The contact stated that the failure had been reoccurring while driving and whenever he would depress the brake pedal several times. The contact referenced NHTSA Campaign Number: 19V645000 (Service Brakes, Hydraulic). The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 130,000.

- Dallas, TX, USA

Loss of brakes at low speeds, may require pumping of brakes. Had an update performed and thought bit was corrected. Have experienced it 4 or 5 times since. Vehicle continues to roll a few feet before stopping. Corrects itself after restart of vehicle.

- Roseville , CA, USA

I have a hard brake pedal at low or idle speeds. First noticed it while trying to park in a parking deck while on vacation. I almost ran into the wall. I looked online for the cause and noticed there is a recall for this issue for our year truck. I contacted the closest dealer but they informed me that my vin number did not pull up the recall. We have a "Texas" edition. I'm wondering if this edition has the same vacuum brake assist pump being recalled but has not been reported.

- Buchanan, GA, USA

Hard brakes. If I press on the brake peddle 2-3 times while making a stop the peddle becomes stiff and difficult. ABS kicks in. Truck was taken into the servicing dealership under the recall but was told there was no problem. It has continued ever since. So is this still under the recall or am I on my own?

- Centennial, CO, USA

I have a 2016 chevy silveradi 1550 LT crew cab when you r driving and apply the brakes they get soft and it's hard to stop and gonna cause a accident the brakes go like into anti lock system and hard to come to a stop.already replaced brakes and rotors no help.and the transmission in the truck is slipping and had all service done now in garage cause the torque convertor is going machenic said cause of the cheap material gm is using this is a big health concern.and makes your rpm go up and get like the tranny is slipping no early sign just boom stuck along the highway.transmission only has 98000 on it.something needs to b done about this before alot of people get hurt

- Colver , PA, USA

Brakes fail at low speed. I have seen numerous reports of this problem dating back to 2018 and nothing seems to be happening with a recall. This is a very danger problem that needs to be addressed immediately. GM service confirmed there is no recall on this common problem. Although there has been no accident, it has been close and pedestrians are at particular risk.

- Mission Viejo, CA, USA

Intermittent reduction in braking power while performing parking maneuvers (parallel parking). Feels like loss of power brakes requiring very heavy force to stop vehicle - very unnerving. Vehicle was taken to dealership for inspection and dealer replaced brake pads and rotors on front & back. Dealer claims issue is unrelated to recall 19V645 & 20V603 but I suspect it is as symptoms are identical.

- Binghamton , NY, USA

I am writing in concern to a brake pump malfunction and air bag sensor failure. The vehicle is available for inspection and has been inspected/confirmed by dealerships. The brake pump is bad and falls under the recall by GM but because it was over the mileage threshold, it didn-??t qualify. The brakes don-??t work well at all. The air bag sensor in the passenger seat went bad and now shut off all my airbags and GM won-??t add my vehicle to the recalls they have already issued on other vehicles for the same issues. My safety is at risk with my lack of air bags for us. Others-?? safety is risk due to the bad brake pump that I cannot guarantee will continue working, especially upon an immediate need to brake in any emergency situation. I have contact the manufacturer 2 separate times and they refuse to include my vehicle in their safety recalls. This is a serious matter. Someone could get hurt or worse. I had no warnings or indications that these were issues until they became one. I had to get quotes of $1200 to get these two issues resolved and don-??t understand how this is a known problem but they refuse to help me in any way. I-??m not asking for a replacement truck or engine. Just functioning safety features!!! The truck is only 5 years old.

- Chillicothe , IL, USA

1) Brake system, yes. 2) The vehicle did not stop when the brake pedal was depressed (known issue with GM). 3) Yes, GM provided an independent investigator and confirmed the brake system failure. 4) Yes. 5) No. On May 29, 2021, at approximately 9:35 AM, I was traveling Northbound on Interstate 5 and exiting the freeway on Highway 46. As I exited the freeway, there was slow moving traffic, I began to brake and experienced no braking at all and the ABS kicked in. At that time, I was traveling at approximately 10 miles an hour when the impact accorded with the vehicle in front of me.

- Oceanside, CA, USA

Believe the vacuum pump is faulty. Hard braking g or no brakes when going slow or go in reverse.

- Amarillo, TX, USA

I had a recall on 2 different trucks (15 & 16 Silverado 1500) and the dealership claimed they fixed the problem but the problem still exists. I sold the 15 but currently still have the 16. I have reached out to the dealership and they told me it's been too long since I had the recall addresses (Nov 2020) so I will have to pay for the $180 diagnosis fee. My truck is doing the exact same thing it was doing before. Even after the dealership "fixed"the problem, I could all notice the issue. I love GM but I'm very disappointed in the efforts they have put forward to resolve this dangerous problem. I'll not sure if my next vehicle will be a GM product

- Austin, TX, USA

I was pulling a trailer and was trying to back it up to park it and I lost my ability to brake. It was scary asks dangerous. I have taken it to the dealership and all they did is reprogram it and not address the actual vacuum pump that has the sludge build up on the screen. Needless to say, even after the recall, I am still experiencing brake loss at low speed. I'm hey disappointed in GM. This has happened to my '15 and '16 Silverado's. I'm not sure if I'll buy another GM vehicle again if my safety is compromised and they will only bandaid the problem

- Austin, TX, USA

Pedal went to floor and would not stop when parking and also in bumper to bumper traffic

- Lafayette, LA, USA

The contact owned a 2016 Chevrolet Silverado. The contact stated was driving 25 mph when the brake brake pedal was depressed however, the vehicle failed to stop. The contact stated that he had to depress the brake pedal with both feet as it travelled to the floorboard. The vehicle did not stop and decelerated in speed which caused the contact to rear-end a vehicle, which also caused that vehicle to rear-end a vehicle as well. No injuries were sustained and no medical treatment acquired. There was no police report filed. There was no warning light illuminated on the vehicle. The contact stated that the ABS failed to engage. The contact had the vehicle towed to their residence. The contact insurance company had the vehicle towed to a tow yard, where they inspected the vehicle damages and deemed the vehicle a total loss. The local dealer and the manufacturer was not made aware of the failure. The contact mentioned that he believed the failure was related to NHTSA campaign number: 18V578000 (service brakes, hydraulic) and 16V069000 (service brakes, hydraulic). The failure mileage was 78,000.

- Vacaville, CA, USA

At low speeds my brakes stop working. The brake pedal becomes very stiff and I have to use both feet pushing down as hard as I can for the vehicle to stop. Also, the head light switch inside the vehicle does not work. When I turned the dial off of the auto lights I saw smoke coming out from behind the dial.

- Raleigh, NC, USA

When driving at low speeds the vehicle sometimes continues to roll even though the brakes are fully pushed. This seems to happen intermittently and is noticeable when pulling into the garage. The brake pads were recently evaluated during a routine service at a GM dealership.

- Arcadia, OK, USA

A lot of force needed to break at lower speed

- Yulee, FL, USA