NHTSA Complaint #11701666 — 2020 CHEVROLET SILVERADO 1500

My truck started acting sluggish like the parking brake was applied while driving. At a traffic light I put the vehicle in park applied and released the parking brake. I put the vehicle back in gear an let off the brake. The vehicle did not move so slightly pressed the accelerator. The vehicle still acted as if the brakes were applied. I could feel the slight movement and torque being applied but only slightly lurching. The traffic light turned green so I proceeded up to 45mph. A vehicle in front of me slowed to make a turn. Applied the brakes and nothing happened. I pressed the brake so hard that I lifted myself off the seat. I swerved to miss the vehicle avoiding a collision. Then warnings started popping up; "brake system failure max speed 62mph", "brake system failure max speed 42mph", Brake system failure", service traction control", "service trailer baking system". among others I was too busy to see all of them. I coasted to a stop in a nearby parking lot with visual and audible warnings still going. I shut the vehicle off then restarted it. Some warnings remained like traction control and the engine light. The vehicle appeared to be operating correctly so I drove it to a local dealer. they said there was a code for low voltage in the brake control module but couldn't get me an appointment for over two weeks. I took the vehicle to a regular mechanic who said what I described was impossible. That mechanic kept my truck for the balance of the day but could find nothing wrong. I no longer trust this vehicles brake system. In many scenarios the failure, were it to happen again could be catastrophic.