WHILE DRIVING MY 2003 SUBURBAN I WAS APPROACHING A STOP SIGN AND ATTEMPTED TO BRAKE. THE BRAKE PEDAL SUDDENLY WENT TO THE FLOOR WITH NO BRAKING ACTION. AS THE TRUCK CONTINUED THROUGH THE STOP SIGN (THANK GOODNESS NO OTHER CAR WAS CROSSING) I ATTEMPTED TO ENGAGE THE EMERGENCY BREAK WHICH FAILED TO SLOW DOWN OR STOP AS WELL. I THEN INTENTIONALLY TURNED TO TRUCK OVER A CURB INTO A GRASSY AREA AS TO STOP THE VEHICLE PRIOR TO ROLLING DOWN THE HILL INTO HIGHWAY TRAFFIC. UPON EXAMINING UNDER THE TRUCK I DISCOVERED AN AREA UNDER A CLAMP LEAKING BRAKE FLUID. IT APPEARS THAT IT HAD CORRODED THROUGH. *JS