2017 GMC Sierra brakes problems

Filed Oct 20, 2022 · Brakes · 51,117 miles · KS · crash

The contact owns a 2017 GMC Sierra LD. The contact stated that on two separate occasions while driving at approximately 50 MPH, the front passenger side wheel locked inadvertently. As a result, another vehicle crashed into the attached trailer which caused the trailer to jackknife. The driver alert warning light illuminated. The air bags failed to deploy. No medical attention was required. No injuries were sustained. A police report was filed. The vehicle was not diagnosed or repaired. The contact then stated that on a separate occasion while driving at normal speed, the front passenger side wheel inadvertently locked without warning. As a result, the strut detached from the control arm which caused the attached trailer to detach and crashed into the vehicle that caused the vehicle to crash into a ditch. the rear passenger side air bags deployed however, the front driver and passenger side air bags failed to deploy. No injuries were sustained. No medical attention was required. A police report was filed. The vehicle was towed to the contact’s residence and then towed to a collision center. The vehicle was not diagnosed or repaired. The contact referenced an unknown the federal safety agency recall related to the Service Brakes, Hydraulic as a possible cause. The manufacturer was not notified of the failure. The failure mileage was approximately 51,117.

Filed Mar 2, 2020 · Brakes · 71,000 miles · SC

After parking and backing up when I hit the brakes, they got hard and did not operate properly. When pulling forward the brakes were hard to operate and barely stopped the vehicle. After sitting a while and restarting the truck they operated as they should have. Not sure if this is an operable safety issue but, it was very concerning that the brakes did not operate properly.

Filed Mar 1, 2020 · Body, Brakes · 39,100 miles · OR

I live in oregon, my truck that I purchased from a private owner from utah in june of 2019 had 37,300 miles today's date march 1 2020 my truck has 39,100 miles. A couple of days ago I changed to my oregon license plate. While under the truck I noticed a lot of rust on many parts of the brakes, suspension and frame especially when I lowered the spare tire which showed severe rust damage. This truck has an extreme amount of rust for a vehicle built in 2017. I consider this to be a safety hazard especially because drivers use this type of truck to haul or tow heavy loads.

Filed Feb 29, 2020 · Brakes · 58,000 miles · TX

Truck was recalled for brakes. Recall completed was computer issue. That recall caused brake vacuum to malfunction. Almost cost me my life. 70 MPH in dallas tx traffic. Had to slow down quickly. Once it slowed down then it wouldn't stop!!! Got it to a parking garage almost hit 3 vehs. It was traumatic. Gm knows about this issue. Many others have reported. Not happy!!!!! Gm extended the brake warranty to 150000 miles. That makes me feel better. They put same part back on. So I guess it will happen again. I'm very leary of my truck.

Filed Feb 24, 2020 · Brakes, Seats · 70,000 miles · CA

Noticed mushy, vibrating brakes. Took it to tire store and was advised the brake booster and vacuum pump are bad. I've had several close calls in parking lots, as the vehicle is slow to resond to the application of the brakes. The drivers seat is also loose. It moves from side to side as I go around corners. I'm afraid it will come off the rails or worse yet, not secure me in the event of an accident.

Filed Feb 23, 2020 · Brakes · 35,000 miles · SC · crash

My 2017 gmc sierra denali had already been the subject of the recall relating to the brake issue. Shortly after they performed this recall work the brakes began failing at low speed. When driving below 5 MPH, the pedal which suddenly fall and the ABS would trigger. During this time, the car would continue moving with the ABS fully vibrating. Thankfully, my trailer hitch absorb the rear impact against a wall. The problem continued. I then took the truck in for service and they reported that there has been a significant failure rate of the vacuum assist. The dealer replace the vacuum pump and vacuum lines. I'm extremely concerned that this would happen to someone else near an intersection, not just slowly backing into parking spaces. I have contacted gmc by email but still have received no response or acknowledgment of my communications.

Filed Feb 4, 2020 · Brakes · 50,000 miles · NC

My brakes are not working to its full potential. I believe my vacuum pump is going back on my truck. I noticed last week that I was driving out of a parking lot and coming to a stop sign and I pressed my brakes and it was not working properly. I had to release the brake and slam on the brakes again almost causing a accident with incoming traffic. I called all my local dealerships and stated that there was no recall on this just yet for my truck, but there is a recall on the vacuum pump. They stated they already did the software update to my truck back in september 2019. My truck was going maybe 10 MPH to a stop sign and I applied my brakes once and was not completely stopping, so I took my foot off the brake pedal, and it got worse and I had the brakes pressed all the way down to the floor. This is not safe! This is my daily driver and I drop my kids off to school every day and its not a good feeling knowing my brakes can go out at any time!

Filed Feb 3, 2020 · Brakes · 59,631 miles · IL

Reference the complaint number 11306627. The vehicle had the brake recall notice n192268490 complied with at the dealer in november 2019. The vehicle then experienced a brake failure in february 2020. Please add this information to my original complaint.

Filed Feb 3, 2020 · Brakes · 59,631 miles · IL

In my driveway on dry pavement at slow speeds when pressing the brake pedal the vehicle does not stop satisfactory. The brake pedal was then pressed until it was very hard the vehicle continued to move but slowly began to stop. When pressing the brake pedal to the maximum and a firm pedal a noise could be heard from under the hood. The noise sounded like a moan, similar to the brake anti skid system being activated. I was able to simulate this braking problem multiple times while backing up and moving forward at slow speeds. Cycling the ignition on and off did not correct the problem.

Filed Feb 2, 2020 · Brakes · 111,000 miles · NC

Brake vacuum pump failure. Vehicle brake pedal becomes very hard to depress at slow speed and very hard to stop. Usually happens when in slow traffic and after the pedal is depress more than 2-3 times in a row.