TL*THE CONTACT OWNS A 2007 DODGE RAM 1500. WHILE THE CONTACT WAS BACKING OUT OF HIS DRIVEWAY AT AN UNKNOWN SPEED, THE VEHICLE SUDDENLY SHIFTED FROM REVERSE INTO NEUTRAL AND THEN INTO DRIVE, WHICH CAUSED HIM TO DRIVE THROUGH HIS GARAGE DOOR. THERE WERE NO INJURIES. PRIOR TO THE FAILURE, THE SAME TYPE OF TRANSMISSION FAILURE WOULD OCCASIONALLY OCCUR. THE VEHICLE HAS NOT BEEN DIAGNOSED BY THE DEALER. THE CURRENT AND FAILURE MILEAGES WERE 21,400.