9/26 APPROXIMATELY 4:30 P.M. 2006 TOYOTA SIENNA SUDDENLY ACCELERATED IN DRIVEWAY AS I WAS TURNING LEFT INTO GARAGE. I COULD NOT STOP VEHICLE AND IT CRASHED INTO THE GARAGE. THE ONLY THING THAT STOPPED THE VEHICLE FROM CRASHING THROUGH THE GARAGE WAS THE BACK LEFT WHEEL HITTING THE DOOR FRAME AND METAL RAIL OF THE GARAGE DOOR OPENER, PULLING IT DOWN ONTO THE CAR. THE ENTIRE LEFT SIDE OF THE VEHICLE WAS DAMAGED ALONG WITH THE SIDE OF THE GARAGE. WE BOUGHT THE VEHICLE NEW AND HAVE HAD NO PREVIOUS MECHANICAL PROBLEMS WITH IT. WE CONTACTED TOYOTA ON 9/26, AND 9/27. THEY GAVE US A CASE MANAGER AND CASE NUMBER AND ON 9/29 STATED THAT A REPRESENTATIVE WOULD BE APPOINTED TO LOOK AT THE VEHICLE IN 10-14 DAYS AND IT WOULD TAKE ANOTHER 30 DAYS FOR THE INSPECTION. THEY STATED IF THE VEHICLE WAS MOVED, IT MIGHT BE CONSIDERED "TAMPERED WITH". WE HAD TO HAVE OUR GARAGE REPAIRED, SO HAD VEHICLE TOWED TO A TOYOTA DEALERSHIP ON 10/1 WITH INSTRUCTIONS NOT TO START VEHICLE OR DO ANYTHING TO IT. OUR CAR INSURANCE ADJUSTER WOULD NOT GIVE AN ESTIMATE ON THE VEHICLE WHILE IT WAS LODGED IN THE SIDE OF THE GARAGE AND FELT THAT IT MIGHT INCUR ADDITIONAL DAMAGE WHEN PULLED OUT IF THE OVERHEAD DOOR FELL ON IT. CONTRACTOR WAS PRESENT AT TOWING TO REMOVE OVERHEAD DOOR AND JACK UP DOOR FRAME. $3,500 DAMAGE TO GARAGE. CAR ADJUSTER WILL DO TO DEALERSHIP TO GIVE ESTIMATE ON VEHICLE . I WAS THE ONLY OCCUPANT AND WAS NOT HURT. WE HAVE BEEN PULLING IN THIS GARAGE SINCE 1983 AND WITH MINI-VANS SINCE