BEING THE DRIVER OF A 2016 F-150 CREW CAB 4X4 WITH 3.5 ECO BOOST MOTOR. I HAVE BEEN NOW BEEN INVOLVED IN TWO BRAKE FAILURE RELATED COLLISIONS. ONE ON JUNE 20, 2017 AND THE OTHER THIS YEAR ON JULY 3RD. THE FIRST BRAKE RELATED COLLISION WAS ON JUNE 20TH, 2017. I WAS STOPPED AT A TRAFFIC LIGHT BEHIND SOME OTHER CARS WAITING ON LIGHT TO CHANGE. NEXT THING I KNOW I FEEL A SLIGHT BUMP HITTING THE CAR IN FRONT OF ME SO I GO TO HIT THE BRAKE AGAIN AND INADVERTENTLY HIT THE ACCELERATOR ENDING UP PUSHING THE CAR IN FRONT OF ME INTO THE CAR IN FRONT OF IT. WHICH CAUSED A 3 VEHICLE ACCIDENT THAT DAY. NOW THIS JULY 3RD I WAS INVOLVED IN A MUCH SERIOUS ACCIDENT DUE TO BRAKE FAILURE. I WAS DRIVING IN FAR LEFT LANE APPROACHING A TRAFFIC LIGHT THAT WAS RED AND CARS IN FRONT OF ME STOPPED AHEAD. I WENT TO HIT MY BRAKES TO STOP AND THE TRUCK KEPT ON GET GOING IN A FORWARD MOTION WITHOUT ANY INDICATION THE BRAKES WERE WORKING. I TRIED TO DIRECT TRUCK TO THE LEFT SIDE MEDIAN TO AVOID A COLLISION AND WHILE IN FORWARD MOTION I MADE IMPACT WITH THE CAR IN MIDDLE PUSHING IT INTO THE FIRST CAR UP FRONT THAT WAS INVOLVED IN MY SECOND ACCIDENT. MY TRUCK'S MIDDLE AND RIGHT FRONT MADE CONTACT WITH CAR IN FRONT OF ME HARD ENOUGH TO PUNCTURE GAS TANK ON THE LEFT SIDE OF THAT CAR WITH MY FRONT MOUNTED TRAILER HITCH AND PUSH IT INTO THE 1ST CAR'S REAR END. MY DRIVERS SIDE STEERING WHEEL AIR BAG DEPLOYED HITTING ME IN THE STOMACH AREA AND SEAT BELT FASTER ON DRIVERS SIDE BRUISED MY RIGHT HIP, AND