TL*THE CONTACT OWNS A 2008 HYUNDAI SANTA FE. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 50 MPH THE VEHICLE SUDDENLY ACCELERATED TO 67 MPH. SHE WAS TRYING TO DECELERATE BY APPLYING EXTREME PRESSURE TO THE BRAKE PEDAL AND THE VEHICLE WOULD NOT STOP. THE VEHICLE EVENTUALLY STOPPED BY CONSTANTLY PUMPING THE BRAKE. AFTER SHE GOT THE VEHICLE TO STOP SHE THEN CONTACTED THE NEAREST DEALER AND THEY ADVISED HER TO BRING THE VEHICLE IN FOR DIAGNOSTIC TESTING. UPON INSPECTION OF THE VEHICLE THEY WERE UNABLE TO REPLICATE THE FAILURE THAT SHE EXPERIENCED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 22,000.