2012 Toyota Camry cruise control problems

I was in an accident driving on a city street due to the vehicle accelerating, I slowed down then put my foot on the pedal. The car took off I slammed on my brakes but still hit the vehicle in front of me. I have told the dealer more than once about the vehicle stalling and accelerating. I had front end damage to my bumper and hood. The vehicle I crashed into back bumper was also dented.

I bought this vehicle on september 2012 just for my usual commute of 20 miles per day. The first few months just about 1000 miles on the odometer I started to experience stalling anytime I slow down on traffic or turning. I thought because it new vehicle but it keep on until my first oil change about 5000 miles when I complained to the dealership; there is no any code and I was referred back to the dealership that I bought; second oil change no problem found.