Lose Power Steering problems of the 2019 GMC Sierra 1500

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.

I started my car and I had 4 messages appear on the dash stating(service esc, service trailer brake, brake system failure-62 mph top speed and steering assist reduced drive with care). I attempted to drive the vehicle in my neighborhood and noticed that I had lost power steering and when I went to brake there was a delayed response. It took the vehicle approximately 4 to 5 feet to come to a stop after braking. Also the abs, check engine, brake and traction control lights were illuminated. I immediately tried to drive back home and when I drove in to my driveway, I smashed on the brakes and I almost drove through my garage because the vehicle would not stop immediately. I tried to press my onstar button for road assistance and lost all electrical power. I contacted onstar with my phone and had the vehicle towed to the dealership where I purchased the vehicle. Currently the vehicle is there being diagnosed for the problem.