TL*THE CONTACT OWNS A 2002 FORD F250 SUPER DUTY. WHILE BACKING THE VEHICLE OUT OF THE DRIVEWAY AT APPROXIMATELY 5 MPH, THE BRAKE PEDAL EXTENDED TO THE FLOOR WHEN IT WAS DEPRESSED. THE VEHICLE DID NOT STOP. THE EMERGENCY BRAKE WAS APPLIED, BUT THE VEHICLE STILL WOULD NOT STOP. THE TRAILER THAT WAS BEING PULLED WHIPPED AROUND AND STRUCK THE SIDE OF THE VEHICLE, WHICH CAUSED MAJOR DAMAGE TO THE TRUCK AND THE TRAILER. THE CURRENT MILEAGE WAS 71,000 AND FAILURE MILEAGE WAS 70,000.