STARTED SUV SOUNDED VERY LOUD. PUT IN PARK SOUNDED BETTER. STARTED TO DRIVE AND SUV ACCELERATED ON ITS OWN, NOT SURE HOW FAST IT WOULD OF GOTTEN UP TO, ONLY WAY TO SLOW DOWN, STEP ON BREAK WITH BOTH FEET. I WAS CLOSE TO HOME SO JUST WANTED TO GET HOME. TURNED INTO DRIVEWAY UNABLE TO STOP IN TIME DROVE RIGHT THROUGH GARAGE DOOR. LUCKILY NO ONE WAS HURT , GARAGE DOOR DEMOLISHED, CAR DENTS AND MANY SCRATCHES. VERY DANGEROUS SITUATION.