I WAS DRIVING ABOUT 40 MPH AND APPROACHING A LEFT TURN. I TRIED TO BRAKE THE CAR TO SLOW DOWN AND THE BRAKE DID NOT WORK. MY FOOT PUSHED ALL THE WAY DOWN AND SINCE I HAD 2 KIDS IN THE CAR I WAS REALLY CONCERNED THAT I COULD NOT STOP THE VEHICLE. I TRIED TO BRING THE CAR TO A STOP AND HIT THE SIDE WALK. THIS WAS NOT THE FIRST TIME OR THE LAST TIME IT HAPPENED. EVEN AFTER THE CAR HAS BEEN REPAIRED, THE BRAKES CONTINUE TO MALFUNCTION AT LEAST TWICE A WEEK. I APPLY THE BRAKES AND THE VEHICLE ACCELERATES AND THEN SLOWLY BRAKES, SOMETIMES DOES NOT BRAKE AT ALL. I HAVE REPORTED THIS TO TOYOTA AND THEY ARE DENYING THERE IS ANYTHING WRONG. I BELIEVE THERE IS SOME PROGRAMMING ISSUING WITH THE CAR AND THE BRAKES CONTINUE TO MALFUNCTION. I DON'T KNOW WHERE ELSE TO TURN. I HAVE 5 KIDS AND DRIVING AN UNSAFE CAR. *TR