TL* THE CONTACT OWNS A 2009 CHEVROLET AVALANCHE. WHILE THE CONTACT WAS STOPPED WITH THE VEHICLE IN DRIVE THE VEHICLE SUDDENLY ACCELERATED WITHOUT WARNING CAUSING THE CONTACT TO CRASH INTO A GARAGE DOOR. THE ACCELERATION COULD ONLY BE STOPPED BY PLACING THE VEHICLE INTO THE PARK GEAR. THE VEHICLE WAS TAKEN TO THE DEALERSHIP WHERE THE CONTACT WAS INFORMED THAT THE FAILURE COULD NOT BE REPRODUCED. THERE WERE NO PRIOR WARNINGS AND THE CURRENT AND FAILURE MILEAGES WERE 11000. UPDATED 4/30/10 *CN THE CONSUMER STATED HE WAS WAITING FOR HIS GARAGE DOOR TO OPEN WHEN THE INCIDENT OCCURRED. UPDATED 06/01/10.*JB