TL*THE CONTACT OWNS A 2004 TOYOTA MATRIX. WHILE THE VEHICLE WAS PARKED WITH THE ENGINE RUNNING, THE CONTACT OPENED THE FRONT DRIVER SIDE DOOR AND ATTEMPTED TO EXIT THE VEHICLE WITH HER LEFT LEG EXTENDED OUTSIDE OF THE DOOR. UNEXPECTEDLY, THE VEHICLE LUNGED FORWARD. THE BRAKE PEDAL WAS ENGAGED REPEATEDLY AND THE VEHICLE WOULD NOT SLOW DOWN. THE ENGINE WAS TURNED OFF. THE VEHICLE CONTINUED TO RAPIDLY ACCELERATE CAUSING THE VEHICLE TO CRASH INTO A MAILBOX AND TREE. THE VEHICLE CAME TO A COMPLETE WHEN ENTERING A DITCH. THE CONTACT SUFFERED TORN LIGAMENTS TO THE LEFT LEG. A POLICE REPORT WAS NOT FILED. THE INSURANCE COMPANY WAS NOTIFIED; AND THEY ADVISED THAT THE VEHICLE NOT BE DRIVEN AND BE TOWED TO AN AUTHORIZED DEALER FOR FURTHER INVESTIGATION. THE VEHICLE SUSTAINED EXTENSIVE DAMAGE TO THE DRIVER SIDE VIEW MIRROR AND FRONT DRIVER SIDE DOOR REQUIRING REPLACEMENT. THE FAILURE MILEAGE WAS APPROXIMATELY 150,000.