ON 9/18/12 I WAS TRAVELING IN RUSH HOUR TRAFFIC ON RT 29N IN COLUMBIA MD WHEN TRAFFIC SLOWED AND THEN STOPPED. I STEPPED ON THE BRAKES OF MY 2000 CHEVY SILVERADO 1500. THE VEHICLE SLOWED SOMEWHAT BUT THEN THE BRAKE PEDAL WENT TO THE FLOOR AND I COULDN'T STOP. I REAR ENDED AN UNMARKED POLICE VEHICLE AT APPROX 20-25MPH. MY TRUCK SUFFERED FRT BUMPER DAMAGE AS WELL AS THE BACK WINDOW BLOWING OUT. THE POLICE CAR SUFFERED REAR BUMPER DAMAGE. THE OFFICER STATED THAT HE WAS OK FROM THE CRASH. I ALSO SUFFERED NOT INJURIES. I WAS ABLE TO GET THE TRUCK OUT OF THE TRAFFIC LANES AND OPENED THE HOOD TO CHECK THE BRAKE FLUID. THE MASTER CYLINDER WAS EMPTY. I HAD THE TRUCK TOWED TO MY LOCAL CHEVY DEALER FOR INSPECTION. MY INSURANCE COMPANY CAME OUT TO INSPECT THE DAMAGES. THE AUTO ADJUSTER STATED THAT THE BRAKE LINES HAD RUSTED THROUGH CAUSING ALL THE BRAKE FLUID TO LEAVE THE SYSTEM. MY INSURANCE COMPANY SAYS THE BRAKE LINES ARE A WEAR ITEM AND ARE NOT COVERED BUT THE DAMAGE TO THE TRUCK FROM THE ACCIDENT WILL BE COVERED. GM SAYS THAT THEY WILL NOT COVER THE BRAKE LINES AND THAT THERE IS NO RECALL ON THE LINES. I AM HAVING THE BRAKE LINES REPLACED WITH STAINLESS STEEL BRAKE LINES TO STOP THIS FROM EVER HAPPENING AGAIN AT CONSIDERABLE COST TO ME. AFTER READING UP ON THE SUBJECT IT APPEARS GM KNOWS ABOUT THIS PROBLEM BUT WON'T DO ANYTHING ABOUT IT. I COULD HAVE KILLED/INJURED SOMEONE DUE TO THESE FAULTY BRAKE LINES. *TR