When I was at a stop light on a city street and I pressed the gas pedal, the brakes locked itself and I could only go 5mph. This is the fourth time it has happened.

- Naples, FL, USA

Driving my 2019 Sierra on a slightly snow covered road applied brakes and truck pulled to the right and antilock brakes never worked causing me to hit guard rail. Called insurance talked with dealer about what happened they said to contact GM customer service. Had my wrecked truck fixed and when GM got back to me they said there was nothing else they could do because I contacted my insurance instead of dealership"??" now I have received another recall notice telling me my brakes are not responding properly. Guess I need a lawyer I don't know.

- Mount Pleasant, PA, USA

When truck is turned on dash says service ESC brake system and service 4 wheel drive will not disengage from 2 wheel drive and parking brake is engaged and will not disengage and truck will not move. Infotainment screen will freeze up and not be able to change radion navigation etc

- Hereford, TX, USA

At around 1500 miles my truck had a rotational noise which led into clicking the grinding and squealing, they changed out the front axle and all new brakes and rotors along with a braking software update. They assured me I should not have any more issues. Now at 4,300 miles I'm starting to have rotational noise again after driving about 1 hour, of course they cant duplicate noise. The truck has had 5 recalls and also a 4WD pump defective all with 4,300 miles. I am fearful that the brakes will fail

- Stamford, CT, USA

When I started my vehicle this morning, I got a warning of brake failure that came up on my dic; this has been happening a lot. I just took the truck in last week for the 4th time and they did another update due to the last recall that was put out by GM. Nothing seems to be working with this brake issue. The brake pedal at times seems to have difficulty when I'm starting the truck. I did not use my remote start on any of the issues I'm having.the truck was parked in my drive way yet it's also happening at various places around town as well.

- Jacksonville, NC, USA

Service ESC warning on dash service trailer brake on dash brake system failure - 62 mph top speed warning on dash steering assist reduced drive with care on dash restarted truck and check engine light came

- Charlotte, NC, USA

Multiple warnings popped up on the screen telling me "brake system failure" "ECU failure" "trailer brake failure" and "max speed 62 mph." After that the brakes become almost non-functional. I had to stand on the pedal with both feet and was unable to slow down enough (45 mph traffic) to had to go into the E-lane to avoid an accident. Truck also gave dtc P25A2. I can't stress enough that it wasn't just degraded braking, it was almost nothing at all. It took nearly 1/8th of a mile to get it stopped on a mild downhill grade.

- Maineville, OH, USA

Started with ignition button put in reverse backed up went to stop and realised brakes are not working as usual had to stand on pedal to stop. Checked mirrors to make sure I didn't hit anything I didn't.thought maybe I hit side of brake pedal so I applied the brake again and figured I lost brake boost. I checked for warning lights there were none.brakes did not work properly until I restarted truck.then I felt the pedal reacted properly. Called dealer they did a recall but recall didn't specifically match my brake loss. I can only hope it's fixed

- North Andover, MA, USA

My pickup started, I pulled out on road and sped up to 35 mph, when I stepped on brakes to slow down they were unresponsive, so I began pumping. They felt very hard to pump and were not slowing the truck down. Lights came on saying service brakes etc. As I coasted to try to slow down off side of road. I had to keep pumping the brakes down to floorboard and I?M not sure they were even working. I lost power steering and was almost involved in a serious rear-end collision. 4 messages appeared on digital dash while driving. Service ESC, brake system failure 62 mph top speed, service trailer brake system, steering assist reduced. I had to press brake pedal to the floor with extremely excessive force to get truck to stop. This failure could have easily resulted in vehicle accident, or even a fatality accident. I doubt I will ever carry my family in the truck again due to this and I certainly will not allow my children to drive the truck. This is the 5th time this has happened to my truck.

- Dallas, TX, USA

I have had the 2019 Sierra 1500 AT4 with 6.2 liter engine in the shop (8) times since purchasing it in late Aug 2019 for multiple issues, including the issues relating to the brake software recall. This resulted in me rolling through a stop sign without any brakes. Luckily there was no oncoming traffic. As an engineer, I have no confidence that the issue has been fixed long term by GM. My family will no longer ride in the truck with me. As a result, I have retained an attorney for the purpose of filing suit against GM for selling me an unsafe lemon. Even further concerning is the fact that on (2) occasions the parking brake has engaged while driving down the highway at 55 mph. One time while in 4WD in snow, and the other time while in 2wd on dry pavement. The first time there was a diagnostic code associated with the parking brake engaging randomly. The second time, there was no diagnostic code present. The first issue with braking began 11/14/2019, and the most recent issue occurred on 2/2/2020 even after all recall "fixes" have been applied.

- Clinton, IL, USA

I was driving to work in snowy conditions and on a very slight bend on a flat public highway my truck starting sliding and as I turned the wheel and applied the brakes the usual action of antilock brakes did not work as intended allowing me to steer clear of the obstacle causing me to wreck.2018 GMC Sierra 1500

- Mount Pleasant, PA, USA

On two occasions the vehicle lost the power brakes function. Numerous dash alerts stating including "service ESC" "brake system failure 62mph top speed" "service trailer brake system" "steering assist is reduced drive with care" along with a check engine light. The brakes pedal had to be pushed to the floor to slowly come to a stop. Both times were in a parking lot. One of which times I was moving. Dec 26th and again on Jan 16th 2019. The vehicle was towed to the dealership on both incidents.

- Rock Island, IL, USA

4 messages appeared on digital dash while driving. Service ESC, brake system failure 62 mph top speed, service trailer brake system, steering assist reduced. I had to press brake pedal to the floor with extremely excessive force to get truck to stop. Note that none of the 4 messages state the vehicle will be extremely difficult to stop or shouldn't be driven, but rather the vehicle wouldn't exceed 62 mph. It should have reduced the speed to much less, maybe 10 to 15 mph. This failure could have easily resulted in vehicle accident, or even a fatality accident. I doubt I will ever carry my family in the truck again due to this and I certainly will not allow my children to drive the truck.

- Malvern, AR, USA

My pickup started, I pulled out on road and sped up to 35 mph, when I stepped on brakes to slow down they were unresponsive, so I began pumping. They felt very hard to pump and were not slowing the truck down. Lights came on saying service brakes etc. As I coasted to try to slow down off side of road. I had to keep pumping the brakes down to floorboard and I'm not sure they were even working as I coasted safely off side of road to a stop, I turned engine off immediately calling my dealership service department. I wouldn't drive it any further as I felt I had no brakes whatsoever. Dealership had it towed to their shop. The next afternoon I spoke with them. They stated it was a known issue and that a recall had been issued (see recall number below) but I never received it. I did receive a seat belt recall so I know they have my correct address. I was told it was some problem with a module and I can come puck truck up. It was scary when it happened. I purchased this pickup new on August 21, 2019. Recall number: Recall-N192268090 (per dealership service department)

- Redmond, OR, USA

Started truck and many services lights came on service ESC, brakes lights, steering lights all warnings. On star called and said I had a brake failure. I was backing out of driveway and could hardly stop the truck as I was approaching the road

- Clinton, MS, USA

After my recall was fixed my truck locked into 4 wheel drive and I lost control of all my safety features. My lights would not work. They fixed what they said was a glitch in the recall and 3 weeks later my engine light came on again and my brake system started to show lights. They recalibrated the brake system recall again.

- Roanoke, VA, USA

After having a recall issue fixed on the ABS braking system of my truck, I remoted started it from GM's onstar app, which caused the dashboard to light up like a christmas tree and give a number of errors, including a solid engine light. GM onstar diagnosis identified that there is now another issue in the ABS braking system. There has been no mechanical failure at this point, but I am concerned their maybe as others with this same issue have seen mechanical failure.

- New Boston, MI, USA

Upon starting the vehicle and taking off after remotely starting it, multiple warnings popped up on the trucks dic. They were, system brake failure, trailer brake failure, ESC failure, do not exceed 65mph warning. After seeing those I applied the brake to stop and the brake pedal went to floor leaving the truck without any type of braking power what so ever. After coasting to a stop I shut the truck off restarted it and the check engine icon was on. The brakes did work after the truck was shut off and restarted.

- Henderson, KY, USA

Four days after having a recall performed I was getting an error for my ecs and ABS being disabled. The truck lost almost complete control of braking. I took it back to the dealership to be reprogrammed and the same thing happened a week later. Both times this happened when the truck was first started.

- Shelby Township, MI, USA

I had no issues with my truck until I went and had the most recent recall done for the brakes. I since have had brake issues twice. Once, hours after having the recall done I got in my truck and started it and all the dashboard lights were illuminated and I had to push the brake pedal to the floor after accelerating. The other instance was a week later after remote starting my truck from the phone application had the same scenario play out.

- Lincoln, NE, USA