I WENT TO PLACE THE GEAR SELECTOR INTO PARK BUT IT DIDN'T GO IN AND I DIDN'T REALIZE IT WASN'T IN PARK. I WENT TO GET OUT TO GRAB SOMETHING AND IT ROLLED BACKWARDS INTO MY GARAGE DOOR. IT DENTED THE GARAGE DOOR AND LUCKILY ONLY DID THAT AS DAMAGE. I WAS ABLE TO GET MY FOOT ONTO THE BRAKE BEFORE IT WENT ANY FURTHER.