MY DAUGHTER WAS A RESTRAINED DRIVER ON A HIGHWAY ---IN RUSH HOUR TRAFFIC, MOVING ABOUT 55MPH. THE CAR IN FRONT OF HER BRAKED SUDDENLY AND WHEN MY DAUGHTER PUSHED ON THE BRAKE IT WENT TO THE FLOOR AND SHE HAD NO BRAKES. SHE CLIPPED THAT CAR REAR END AND SWERVED RIGHT'HITTING A SECOND CAR AS SHE GOT TO THE SHOULDER. SHE SCRAPPED ALONG THE METAL RAIL FOR A DISTANCE AND THEN WENT OFF THE ROAD IN TO A GULLY AND HIT A POLE AND AN DIRT EMBANKMENT. BOTH AIR BAGS DEPLOYED. THE LIGHT POLE DID NOT LOOK DAMAGED, I THINK THE POLE MUST HAVE HAD A LARGE CEMENT BASE, BASED ON THE EXTENT AND SHAPE OF THE FRONT END DAMAGE. THE CAR IS TOTALED. THE AIR BAGS DID A GREAT JOB. SHE HAS A BAD SPRAIN ON HER ANKLE THAT SHE WAS TRYING TO BRAKE WITH AND SORE EVERYWHERE. A FAMILY MEMBER WORKS AT FORD . HE ASKED ME TO CHECK THE BRAKE FLUID SINCE BOTH FRONT AND REAR BRAKES FAILED. I CHECKED THE BRAKE PEDDLE AND IT WENT TO THE FLOOR WITHOUT ANY RESISTANCE. I CHECKED THE BRAKE RESERVOIR AND IT WAS FULL. MY FAMILY MEMBER TOLD ME TO SUBMIT THIS REPORT.