TL* THE CONTACT OWNS A 2003 CHEVROLET SILVERADO 1500. WHILE DRIVING 35 MPH, THE BRAKE PEDAL TRAVELED TO THE FLOORBOARD WHEN DEPRESSED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 121,000. UPDATED 03/16/17*LJ THE CONSUMER STATED THE MASTER CYLINDER WAS REPLACED, BUT THE FAILURE PERSISTED. UPDATED 08/30/2017*JS