I WAKE UP EARLY ON SUNDAY, ON 11/16/15 AND TOOK A COMPANY TRUCK A 2006 GMC SIERRA 1500, TO BRING SOME CARGO. ON MY WAY BACK HOME ON 836 WEST EXPRESSWAY, I TOOK MY EXIT AND WHEN PRESS THE BRAKE PEDAL TO REDUCE SPEED, THE PEDAL WENT TO THE FLOOR OF THE CAR AND THE BRAKE ACTION WAS MINIMUM TO NOTHING. ANOTHER VEHICLE WAS STOP AT THE TRAFFIC LIGHT, AND TO AVOID THE OBVIOUS IMPACT TO THE STOPPED CAR, I PUMPED THE BRAKES SEVERAL TIMES AND APPLIED THE PARKING BRAKES AT APPROX. 30 MPH. SEEING NO WAY TO AVOID THE COLLISION, I PULL THE CAR TO THE SIDE OF THE ROAD AND HIT A CONCRETE WATER DRAIN, RESULTING IN ABRUPTLY SOPPING OF MY CAR AND MY KNEE HIT THE LOWER DASHBOARD. THE GUY OF THE OTHER CAR WENT OUT AND ASK ME, ARE YOU "DRUNK" "ARE YOU OK" I CALLED A FLATBED AND BRING MY TRUCK TO MY WORK PLACE AND THEN NOTICE THAT A BRAKE LINE WAS BROKE AND MOST OF THE BRAKE FLUID SPILLED ALL OVER THE FRONT OF THE CHASSIS, UNDER THE RADIATOR. THE BRAKE LINE WAS INCREDIBLE RUSTED, REASON FOR THE BRAKE DOWN, I HAD CARS WITH A LOT MORE YEARS WITH NO PROBLEM WITH BRAKE LINES. WHEN I INSPECT THE OTHER BRAKE LINES DEEPLY, NOTICED THAT AN EXCESSIVE CORROSION WAS IN ALL OF THEM. GMC SHOULD DO SOMETHING ABOUT THIS, SAFETY ISSUE, IS NO REASON FOR A 2006, ONLY 8 YEARS VEHICLE, PRESENT THAT LEVEL OF CORROSION ON BRAKE LINES. "COKE CAN THICKNESS APPARENTLY" . SOMEBODY WILL DIE OR SERIOUSLY INJURE, OR WILL KILL SOMEBODY, PEDESTRIAN OR DRIVER BECAUSE THE SUDDEN BRAKE FAILURE IN A CASE LIKE THIS. I WILL BR