TL*THE CONTACT OWNS A 2007 TOYOTA SIENNA WHICH WAS MODIFIED FOR DISABLED PERSONS. WHILE DRIVING AT AN UNKNOWN SPEED, THE DRIVER APPLIED THE BRAKES AND THE VEHICLE SUDDENLY ACCELERATED AND CRASHED INTO ANOTHER VEHICLE. THERE WERE NO INJURIES. A POLICE REPORT WAS FILED. THE DRIVER WAS ABLE TO SAFELY DRIVE THE VEHICLE HOME WITHOUT THE FAILURE REOCCURRING. THE CONTACT STATED THAT THE BRAKES ON THE VEHICLE HAD ALWAYS NEEDED HEAVY PRESSURE TO BRAKE PROPERLY. THE MANUFACTURER ADVISED THE CONTACT TO HAVE THE VEHICLE TOWED TO AN AUTHORIZED DEALERSHIP. THE BRAKES WERE REPAIRED BUT THE SUDDEN ACCELERATION PROBLEM WAS NOT ADDRESSED. THE FAILURE HAS NOT OCCURRED SINCE THE VEHICLE WAS RETURNED TO THE CONTACT. THE FAILURE MILEAGE WAS APPROXIMATELY 12,000. THE CURRENT MILEAGE WAS APPROXIMATELY 20,000. THE VIN WAS UNAVAILABLE.