WHILE I WAS DRIVING MY VEHICLE THE STEERING WHEEL OF THE CAR STARTED TO SHAKE FROM SIDE TO SIDE AND WHEN I WENT TO SLOW DOWN THE VEHICLE TO PULL OVER TO SEE WHAT WAS THE PROBLEM, THE SHAKING OF THE STEERING WHEEL INCREASED AND I LOST CONTROL CAUSING THE VEHICLE TO GO INTO THE DITCH. THE DEALER INSPECTED THE VEHICLE AND REPLACED A TIRE VALVE. IT HAD AN AIR LEAKAGE BUT NOT THE CONSEQUENCES OF THE FAILURE. *JB