ERROR MESSAGE CAME ON ABOUT POWER STEERING, AT THAT POINT STEERING MALFUNCTIONED. THE RESULT MY DAUGHTERS CAR STRUCK GUARD RAIL ON BRIDGE CAUSING EXCESSIVE DAMAGE TO FRONT END. THIS OCCURRED AS VEHICLE WAS GOING THROUGH CURVE ONTO BRIDGE AT APPROXIMATELY 55 MPH. LOCATION WAS ON LA HWY 163 SOUTH OF DOYLINE, LA AT LAKE BISTINEAU