TL*THE CONTACT OWNS A 2005 TOYOTA COROLLA. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 5 MPH THE VEHICLE SURGED FORWARD UNTIL CRASHING INTO A CEMENT POST. A POLICE REPORT WAS NOT FILED AND THERE WERE NO INJURIES. THE VEHICLE WAS DRIVEN TO HER RESIDENCE BEFORE BEING TOWED TO AN AUTHORIZED DEALER WHERE THEY WERE UNABLE TO DIAGNOSE THE FAILURE. THE VEHICLE WAS REPAIRED FOR THE BODY DAMAGE BY AN INSURANCE AGENCY. THE MANUFACTURER SENT AN INVESTIGATOR TO EXAMINE THE VEHICLE BUT WAS ALSO UNABLE TO DIAGNOSE THE FAILURE. THE FAILURE AND CURRENT MILEAGES WERE 23,000.