2009 JAGUAR XF - SUDDEN ACCELERATION ISSUE ON THREE SEPARATE OCCASIONS. DRIVING ABOUT 20 MPH AND THE CAR ACCELERATED - ABLE TO STOP THE CAR BY PRESSING DOWN FULLY ON THE BRAKES. IT DID NOT RESPOND AT FIRST AND THEN SOMETHING SHIFTED AND THEN THE BRAKES WORKED. WITH FIVE MINUTES, IT DID IT AGAIN AND THE ONLY WAY TO STOP THE CAR WAS TO SLAM IT INTO PARK. THE CAR WAS TOWED INTO THE DEALER AND THE BLACK BOX INFORMATION DOWNLOADED TO THE MANUFACTURER. NO FAULT CODES FOUND AND THEY COULD NOT DUPLICATE THE PROBLEM. IT HAS SINCE DONE IT ONE MORE TIME AND THE EMERGENCY BRAKE STOPPED THE CAR. THE MANUFACTURER IS CLAIMING THAT BOTH THE BRAKE AND THE GAS WERE DEPRESSED AT THE SAME TIME. *TR