I WAS DRIVING INTO A PARKING SPOT. AS I LIFTED MY FOOT OFF THE ACCELERATOR TO SLOW DOWN THE CAR SUDDENLY ACCELERATED. UNDER MY FOOT, THE GAS PEDAL MOVED ON ITS OWN, SPEEDING UP TO FRIGHTENING INTENSITY. MY FIRST ATTEMPT TO BRAKE DID NOT DISENGAGE THE ACCELERATION. I CONTINUED TO APPLY PRESSURE ON THE BRAKE. FINALLY, THE ABS KICKED IN (I FELT THE PULSATING OF THE BRAKING) AND CAR STOPPED, AFTER GOING OVER A CONCRETE PARKING BARRIER, A CURB, UP AN INCLINE AND STRIKING A 6 FOOT TALL COMMERCIAL FENCE. THE IMPACT PUSHED OVER THE FENCE TO ABOUT A 75 DEGREE ANGLE. I HAD THE CAR TOWED TO MY LOCAL TOYOTA DEALER WHICH EXAMINED THE CAR (THEY SAID), CHECKED FOR "CODES" REGARDING MY MODEL AND TOLD ME THERE IS NO PROBLEM.