I had adaptive cruise on, was at a stop light, so adaptive stopped, the truck in front of me moved because the light turned green, so to engage the cruise i gently gave it gas and i felt the cruise kick so i moved my foot and then the car lunged into the trailer hitch of the truck in front of me. i had no time to react, the crash warning did not flash nor did the braking assist engage. luckily the guy i hit was not affected the hitch prevented damage to his truck but my car took all the damage. i was so shook that before i could apply brakes my car still was trying to move forward even though it had hit the hitch. this was on a highway just as it was merging to a street. i contacted cadillac/gm and sent them pictures and 2 days later they called and said i had no case, they did not even send me to a dealer to check out the system by a professional.
Went to pull into a parking spot, hit the brake, the car sped up hitting another parked car. i had a problem yesterday, put car in cruise control(50 mph) on the highway, went to brake to turn, cruise control would not disconnect, had to shut the system off manually. similar periodic problems in the past.
Tl* the contact owns a 2015 cadillac cts. the contact stated that various warning lights illuminated and the vehicle accelerated from 35 to 45 mph independently. the contact stated that the period of acceleration briefly occurred then the vehicle resumed operating normally. the vehicle was taken to the dealer where it was diagnosed that the fuses failed in the transmission (tcn). the vehicle was repaired. manufacturer was made aware of the failure. the failure mileage was unknown.