Vtgtmchick

The warnings that I am getting are: Service ESC, Steering Assist Reduced, Service Trailer Brake System, Brake System Failure, Speed reduced to 43mph These warnings come randomly, when I'm driving, and twice it's happened after the truck has sat either all day or overnight. All I did was turn it on. I also hear a slight 'tick' when I press, let up or hold the brake pedal. One very strange thing that happened one of the times I lost the brakes completely...the dash instructed me to lower the driver side window, raise the driver side window, lower the passenger side window, raise the passenger side window. As soon as I completed those commands, the brakes went to the floor.

Im having the same issue with my 2019 Sierra 1500 AT4. All of the same warnings. It will go from no more than 62mph to 43 mph, then at some point, no brakes at all...to the floor! So "newdude", I understand what cmb1982 is saying. This has happened to me 5 times. I've had it towed 4. It all started with a simple brake pad and caliper change and now I am quite literally taking my life in my hands driving my truck because, "it seems to be fine" and isn't currently throwing any codes. I drive it for a day, maybe 4 or 5 and they fail again. 6 weeks I've been dealing with this and nobody can figure it out. The vehicle was not placed in service mode when the pads and caliper were replaced. I believe the caliper is bad or acuator was damaged, but nobody wants to listen to me. Any ideas would be greatly appreciated. I don't want GM to just start throwing parts at it until something works. I want to know what the problem is and deal with it.