Warnings problems of the 2025 Cadillac XT5

We were traveling out of our development at 17-20mph while approaching our exit gate the car jolted forward and accelerated at a rapid speed. My husband immediately stepped on the brake but the brake pedal became hard, the brake did not work. The car would not stop while pressing down on the brake. We crashed through the exit gate heading to the water, he then turned the wheel which also became difficult to turn as we headed into the brick wall . Hitting the wall, caused the car to come to a stop! upon the airbags deploying there was a fire which burned through my husbands shirt and burned his arm. The car is available for inspection. It is currently in the salvage yard in mt pleasant south carolina. Coastal Cadillac dealership declined to have the vehicle diagnostic tested to find out why the car malfunctioned because the car was declared as expediated totaled by state farm insurance company. The vehicle gave no warning messages to our knowledge messages prior to the accident. Engine and braking components failed.

Failed transmission--April 16, 2026 I was backing out of my garage when I heard a very loud bang noise and it stopped my car instantly. I thought I had hit something but I did not. On may 22, 2026. I stopped at a red light a few cars back but when the light changed the car would not go as it hesitated a few seconds (maybe 15) like it was not going to drive off but it did. On may 23, 2026, I was going up the driveway from my sisters house and again the very very loud bang noise and it stopped instantly. This time it pushed me toward the steering wheel, if I had been going a little faster I think the air bag would have popped out. This time the flasher come on like someone pulled out or I was going to hit something. I was told by the Cadillac service person that they would drive it cold today(may 26, 2026) and see if anything happens. Well I am not driving this car 55 miles per hour and it stops instantly maybe killing me and others on the road. I think this is a safety problem. I love my Cadillac but I do not want to die in it.