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

When braking frequently in a parking lot or at low speeds the stopping power gets worse and almost will not stop the vehicle. I have 86,760 miles on my truck currently but this has done it since 20,000 miles and since then off and on.

- Moorhead, MS, USA

The contact owns a 2015 Chevrolet Silverado 1500. While driving approximately 30 mph and approaching a red light, the brake pedal was depressed, but felt very hard. The contact had to pump the brake pedal several times to stop the vehicle. The contact stated that the brake failure occurred for the past two months on a daily basis. The contact also stated that the headlight assemblies were fractured and caused the headlights to be very dim. The contact drove the vehicle to jud kuhn Chevrolet (3740 hwy 9 E, little river, SC 29566) and they offered to repair the headlight assemblies; however, the contact would have to pay half of the repair cost. The manufacturer was notified of the failure. The vehicle was not repaired. The approximate failure mileage was 65,216.

- Ocean Isle Beach, NC, USA

The contact owns a 2015 Chevrolet Silverado 1500. While driving at a low speed, the brake pedal became stiff and the brakes failed to respond in a timely manner. The contact had to depress the brake pedal several times to stop the vehicle. The failure was experienced several times. The vehicle was taken to healey Chevrolet (5216 NY- route 17M, new hampton, NY 10958, (845) 360-9821) where it was diagnosed that the brake vacuum pump was leaking oil. The vehicle was repaired and the vacuum pump was replaced. The manufacturer was contacted and stated that the vehicle did not qualify for the manufacturer's brake vacuum pump replacement because the mileage exceeded 72,000. The manufacturer provided case number: 95212761589. The failure mileage was 94,000.

- Gardiner, NY, USA

Increased brake pedal effort, hard brake pedal, and/or potentially increased stopping distance due to low mechanical vacuum pump output. Condition is more prevalent at low speed when softly applying the brake. Decrease vacuum/power brake assist over time, failure to follow recommended oil change intervals could contribute to conditions. Driver's information center (dic) "service brake assist" alert will activate 2-5 minutes after dropping in vacuum level, and diagnostic trouble code (dtc) will also be set. Hydraulic brake system remains functional but may require additional pedal force.

- Newfane, NY, USA

When traveling in low speeds, usually in reverse, I have to increase my break pedal effort and press really hard to stop the truck. This does not happen every time I drive it but it does happen often.

- Bakersfield, CA, USA

Brake vacuum pump failed which resulted in diminished braking performance. This was very dangerous as we were pulling a camper when it happened. Dealership replaced vacuum pump when vehicle was at 78260miles although condition started before that. We received a letter about reimbursement but it only applies to 72000 miles or 6 years. The repair cost us over $500.

- Kentwood, LA, USA