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

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

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

Truck parked in morning, turned it on and multiple warnings came on, service trailer brake system, service ESC, brake system failure at 62mph, got warning from onstar that there is an issue with my antilock braking system, I took pictures of error but only could upload one.

- Edinburg, TX, USA

Purchased new, Dec 24, 2019. Current odometer 645miles. The vehicle was parked for about 15 minutes, when I returned to my truck and turned it on, multiple warning tones began to sound and the dashboard was illuminated with multiple warning lights (ABS, traction control, check engine, parking brake) and messages reading: "brake system failure 62mph top speed, " 'service trailer brake system, ' 'steering assist is reduced drive with care, ' 'service ESC.' I turned the vehicle off and on multiple times over the course of 20 minutes, exiting the vehicle, locking the doors, unlocking the doors, and starting the process from the beginning. I decided I wouldn't be driving over 62mph as I was only 2 miles from my home, so I decided to back out and drive home with full intentions of calling the dealership in the morning. When I tried to back out I realized that I had almost zero braking power, having to almost stand up on the brake pedal to stop the vehicle without giving it any gas, and turning was difficult (similar to manual steering in a vintage vehicle). I knew driving home would not be safe. I turns the vehicle off and on once more and all the warning messages and lights were no longer there. The check engine light remained on and is still on. I was able to drive home as though nothing happened, but am fearful this will happen while driving down the road, especially while my children are in the car. I have read multiple forums, this is not an isolated incident, with many others experiencing the same exact issue, sometimes while actually driving, in 2019 GMC Sierra and Chevy Silverado's. this is absolutely unacceptable and will result in injuries and deaths if GM does not resolve the issue.

- Birmingham, AL, USA

Dear NHTSA, I recently leased a 2019 GMC Sierra pickup truck. This truck is currently in the shop for the 6th time, and neither GM or the local dealership can seem to fix anything on this truck. Most recently, as yesterday I had my car in for the braking system. The dealership called me and said my truck was fixed. As I turned my truck on, the brake system light came on. I was told by the dealership to just drive it and it will go away. I do not feel this is a good/safe practice and GM is not helping me to get out of this unsafe truck.

- Chalfont, PA, USA

Cruise control would not disengage when the brake was applied I was on a highway traveling 65 mph. Had to take an exit ramp to avoid a collision with vehicle in front of and beside me.

- Silver Creek, MS, USA

When I tried to drive my truck I received the below error messages and lights on my dash board: Steering assist reduced drive with care service trailer brake service ESC brake system failure - 62 mph top speed ABS check engine brake traction control I dropped the truck off at the GMC dealer for two days, I picked it up and it was fine. I was told it was a software update. Then 7 days later I had the same errors messages and lights on my dash board. And this time it was extremely hard to stop the truck. I needed to press down all the way to stop the truck.

- Massapequa, NY, USA

I have a 2019 GMC Sierra I took it in for recall services and took a road trip to Texas once I reached tax that evening I had a brake system failure going down the highway took it into the shop and had everything looked at and check they said truck was fine and the next morning on the trip back brak system failed again and both time check engine light was on for electric problem as well. Go the truck to the dealer again where it is currently at now. They will do the same thing and tell me the truck is fine or replace parts that was not the issue. I refuse to place my family life in danger by continuing to drive this truck it is a major safety hazard

- Columbia, SC, USA

Brand new truck, denali, 10K miles, started vehicle with multiple warning sounds/lights, dash read "brake system failure 62mph top speed", service trailer brake system", steering assist is reduced drive with care" service ESC", power steering was very tough to steer, braking was super reduced with full weight on brake to try and get vehicle to stop. Have 3 children under 3 years of age and not acceptable GMC.

- Urbandale, IA, USA

The contact owns a 2019 GMC Sierra 1500. While driving various speeds, the brake failure indicator illuminated and the vehicle would not immediately stop when depressing the brake pedal. Also, several warning indicators illuminated, including the power steering, ABS, and trailer towing warning message indicating that the vehicle would not accelerate above 62 mph. In addition, the steering wheel became difficult to turn in either direction. The failure occurred on two separate occasions. The vehicle was taken to fairway Chevrolet (3100 E. sahara ave, las vegas, nv), but was not diagnosed or repaired. The manufacturer was not notified. The failure mileage was 1,400. The VIN was invalid.

- Las Vegas, NV, USA

The contact owns a 2019 GMC Sierra 1500. While driving approximately 40 mph, the entertainment system went out. When the vehicle was turned off and restarted, the failure did not recur. The failure later recurred and the vehicle was taken to bob howard Buick GMC dealer (405-936-8800, located at 13300 broadway extension, Oklahoma city, ok 73114) where the computer system was updated. Approximately two weeks later, while driving approximately 40 mph, the brakes lost power and did not stop the vehicle. The vehicle was taken back to the same dealer and was not repaired. The manufacturer was made aware of the failure and stated that the vehicle would be repaired. The failure mileage was approximately 1,500. The VIN was unknown.

- Edmond, OK, USA

The contact owns a 2019 GMC Sierra 1500. The contact stated that the back up camera was faulty. The features worked intermittently and would not complete all views of the rear of the vehicle. The screen turned blue and "service back up system" appeared on the camera screen. The contact stated that the vehicle also had a lane assist sensor; however, the seat would not alert the contact or vibrate when he drifted out of the lane. The vehicle was driven to home dale schwartz GMC (145 willow ave, honesdale, pa 18431, (570) 253-4222) where it was diagnosed that a new module needed to be installed in the rear seat. The contact did not know what side of the rear of the seat the module needed to be placed. The vehicle was not repaired. The mechanic ordered the new module and stated that it would arrive in three weeks. The manufacturer was made aware of the failure. The failure mileage was 1,800. The VIN was unknown.

- Hawley, PA, USA

TL contact owns a 2019 GMC Sierra 1500. When the contact started the vehicle, the 'brake system failure 62 mph top speed', trailer brake, service ESC, and steering assist indicators illuminated on the instrument panel. Also, while the contact was testing the brakes in a parking lot, the brake pedal became soft and felt as if it could extend to the floorboard. The contact also stated that he had to apply excessive force to the brake pedal to stop the vehicle. The vehicle was not diagnosed or repaired. The dealer and manufacturer were not notified of the failures. The approximate failure mileage was 750.

- Dry Pork, VA, USA

First week of ownership I noticed that the rear window had a water leak by rear driver seat. While inspecting the leak, I notice that the paint on the rear brake spoiler above the rear window had two black marks. Body shop technician rubbed his fingers on the spots and paint was rubbing off. I started to receive 'service steering column lock' messages intermittently and regularly during startup. Heating indicator lights for all the seats do not light up to indicate their settings. This occurs while vehicle is stationary or on the road. The rear backup camera screen turns blue and displays 'service rear backup camera' while reversing and it occurs occasionally.

- Brownsville, TX, USA

I am a heavy highway construction inspector for wvdoh and while working on I 81 sb in martinsburg, wv this morning around 2:00 am while performing my duties I attempted to pull out of my lane closure into traffic when my truck literally got stuck halfway out into live traffic. It was as if I was stomping on the brakes instead of giving it gas. Fortunately I reacted swiftly and put the truck in reverse to back into my lane closure preventing a collision with a tractor trailer traveling at speeds in excess of 55 mph. I was literally shaking when I realized how close of a call it actually was and that not only could I or the truck driver have been killed, but so could the workers on my job have been injured and/or killed. I had to have my truck towed back to my field office. For some reason the truck started driving properly again. There is definitely something wrong and it is extremely fortunate that no injuries occurred on my project. I did notice a post on this website explaining the very thing that happened to me this morning. This issue must be addressed immediately before people are killed. Thank you, [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Little Orleans, MD, USA

When I am driving my truck, I will get notifications saying that there is a trailer disconnection issue when I don't even have a trailer connected. It also flashes an alert saying that the lane departure system and pedestrian sensor are being effected. As this is going on, the infotainment screen flashes on and off as well which is very distracting. They have continued to come on in cold weather after I have taken it to the dealership to be looked at. I don't know if this is a hardware or software problem but it needs to be addressed because it becomes both a large nuisance and safety hazards when you have errors messages and lights flashing while you're driving.

- Keyport, NJ, USA

Trailer disconnect warning when no trailer is connected cold weather seems to cause the error the warning continually pops

- Buffalo, NY, USA

When the temperature drops below about 20 degrees (Fahrenheit) the center instrument cluster starts displaying emergency codes that require constant clearing, only to have the error codes reappear. The same thing happens on the infotainment head unit in the center stack -- it flashes, resets, cuts the sound in and out and displays trailering checklists. All of this is immensely distracting to the driver and creates a safety hazard. I've had it serviced and have been told GM engineers are aware of the issue (its common on 2019 Sierra and Silverado 1500 trucks) but have been unable to find a solution. I have video of both types of errors.

- Park Ridge, IL, USA

Vehicle screens including both the driver information area and the infotainment screen began flashing alerts/warning about disabled cross traffic alert, lane keeping assistance, and trailer connection/disconnection warnings. Alerts happened ever 2-4 seconds with screen flashes each time. Very distracting in the dark which makes it difficult to pay attention to the road. Almost rear ended another vehicle due to this issues.

- Helena, MT, USA