Brakes Failed problems of the 2019 GMC Sierra

After starting my vehicle remotely using on-star, my brakes stopped functioning properly. . . After remote starting the vehicle using my on-star app, we entered it, depressed the brake and pressed the start button. At that time I received multiple error messages, stating "brake system failure, 62 mph top speed" "service esc" " steering assist is reduced drive with care. " I restarted the vehicle a number of times and the error messages went away. I then began to drive home and after about 2 miles the error messages all came back and my brakes stopped functioning. I was able to use the full force of my body on the brakes to get the vehicle to come to a stop from around 30 mph in my neighborhood. Had I been on the highway or on the main street I had just been on I likely would not have been able to stop without hitting another vehicle or object.

After starting vehicle using the mygmc app, I received the following warnings: 1. Service trailer brake system 2. Steering assist is reduced drive with care 3. Service esc 4. Brake system failure 62 mph top speed 5. Check engine light. Vehicle was stationary and I did not drive afterwards. Truck was in for service last week to complete recent recalls and replace a leaky rear window. When I pick the truck up, I noticed the lane keep assist, lane departure warning, intellibeam headlight, forward collision alert, and other functions associated with the window mounted camera system were inoperable. I have an appointment already scheduled for that and will add this for the dealer to investigate. Truck was taken to dealer for recall on 1/7/2020 and I got it back on 1/18/2020 because of the window replacement.

The vehicle was in for replacement back up camera module and the dealer stated that the fix for the active brake system failure recall was completed. After starting the vehicle in a parking lot, several messages displayed in the driver information center: brake system failure 62 mph top speed, service esc, service trailer brake system, service brake assist. Additionally, several warning lights for the abs, parking brake, tcs, check engine light, etc were illuminated. After acknowledging the messages, I placed the vehicle in reverse and noticed that the brakes needed to be pressed with full weight on them to get the vehicle to stop. I placed the vehicle in drive to park back in space and the same issue with the brakes persisted. I turned the vehicle on and off 4 times and the messages finally stopped displaying and the brakes appeared to work as they normally should, although the check engine light remained lit. The vehicle was driven to the dealership and no resolution has been given for the issue to date.