MY VEHICLE WAS IN MOTION ON A CITY STREET. I WENT TO MAKE A TURN BECAUSE OF A CURVE AND MY STEERING WHEEL AND BRAKE WOULD NOT WORK. MY EMERGENCY BRAKE SYSTEM (WHICH IS SUPPOSE TO STOP MY VEHICLE BEFORE IMPACT, DID NOT DEPLOY. I RAN STRAIGHT INTO A STONE WALL AND FENCE. I RECEIVED A RECALL LETTER IN THE MAIL ABOUT THE BACK SENSOR, BUT MY SENSORS WERE WORKING UP UNTIL MY ACCIDENT. MY VEHICLE WAS DEEMED TOTALLED. IT WAS NOT RAINING, I WAS NOT SPEEDING, AND WHEN THE POLICE CAME OUT TO DO AN INVESTIGATION, THEY COULD ONLY DETERMINE THAT IT WAS A MECHANICAL PROBLEM. WHY DID THE SENSOR NOT WORK? WHY DIDN'T MY CARS EMERGENCY BRAKE SYSTEM NOT WORK? NOW I'M HAVING TO GET A NEW VEHICLE WITHOUT EVEN KNOWING WHY THE SAFETY SYSTEMS PUT IN PLACE DID NOT DEPLOY. THANK GOD MY SON WAS NOT IN THE CAR AND NO ONE ELSE WAS INJURED.