STEERING FAILED WHILE ATTEMPTING TO TURN FROM HIGHWAY ONTO AN INTERSTATE RAMP. WHILE BRAKING THE STEERING RESPONSE BECAME ERRATIC AND CAR SPUN INTO THE GUARD RAIL. NO PERSONAL INJURIES DURING THE WRECK; HOWEVER, CAR BODY DAMAGE WAS $3300. NO PREVIOUS STEERING FAILURE HAD BEEN EXPERIENCED. GM DEALERSHIP INDICATED POWER STEERING CONTROL MODULE (22837369) WAS CAUSE FOR STEERING FAILURE. GM DEALERSHIP REPLACED THIS MODULE TO RETURN POWER STEERING TO SERVICE AND CHARGED ME FULL COST OF PARTS AND LABOR. *TR