I do not know what component or system failed. I was at an appointment with my son when the receptionist informed me that my car alarm was going off and there was smoke coming out of it. I went out to investigate and it sounded like the engine was attempting to start continuously. My key fob would not unlock the car. The engine continued to attempt to start and i was certain the car was going to start fire. We called 911 and went back inside to avoid anyone being hurt. The car then caught fire and burned until the fire department put it out. It was towed to an impound lot where it caught fire again and was destroyed. See pictures for more information.