DT*: THE CONTACT STATED AFTER THE VEHICLE WAS PUT IN REVERSE, A CLUNK WAS HEARD. THE CONTACT THEN REVERSED AND COULD NOT STOP WHICH RESULTED IN THE VEHICLE HITTING A POLE. THE VEHICLE WAS PUT IN DRIVE AND ACCELERATED UNCONTROLLABLY. THE VEHICLE HIT A BUILDING. THERE WAS MINOR DAMAGE TO THE VEHICLE AND BUILDING. THE VEHICLE WAS TOWED TO THE DEALERSHIP WHERE A REBUILT TRANSMISSION WAS INSTALLED.