DRIVER WAS MAKING A SHARP LEFT TURN INTO A PARKING SPACE AT LOW SPEED AND ATTEMPTED TO BRAKE TO A STOP. THE VEHICLE DID NOT SLOW DOWN AT ALL DESPITE HARD PRESSURE ON BRAKE PEDAL BUT INSTEAD ACCELERATED,JUMPED A CURB IN FRONT OF THE VEHICLE AND HIT A WALL WHICH STOPPED THE CAR. NO ONE WAS INJURED BUT FRONT BUMPER BADLY GOUGED AND FRONT DOOR SLIGHTLY DENTED. DRIVER WAS ABLE TO PUT THE CAR IN REVERSE AND GET OFF THE SIDEWALK. VEHICLE IS NOW AT TOYOTA DEALER FOR INSPECTION. UPON REFLECTION 2 OTHER INCIDENTS OCCURRED WHERE WHAT FELT LIKE A MOMENTARY SPEEDUP OCCURRED AGAIN AT LOW SPEED WHILE TURNING AND BRAKING. BUT THESE 2 WERE WHILE MOVING FORWARD AND NOT ATTEMPTING TO BRING THE VEHICLE TO A COMPLETE STOP. *TR