WHEN CAR IS OFF AND STILL IN DRIVE YOU CAN TAKE THE KEY OUT AND LEAVE THE CAR, STILL IN DRIVE. I DID THAT AND IT BACKED UP AND HIT A TRUCK IN A PARKING LOT. IT HAS DONE IT EVER SINCE I'VE HAD THE CAR. NO BIG DEAL UNTIL NOW. WHY DOES IT LET ME TAKE MY KEY OUT WHILE IT IS STILL IN DRIVE?