WHILE DRIVING ON I90 IN STOP AND GO TRAFFIC, THE CAR IN FRONT OF ME STOPPED. I APPLIED MY BRAKES AND THE PEDAL WAS HARD AND WOULD NOT DEPRESS. AS A RESULT MY CAR WOULD NOT STOP AND I HIT THE CAR IN FRONT OF ME IN THE REAR END. MY AIR BAGS WENT OFF. I RECEIVED AN AIR BAG BURN. THE CAR IN FRONT OF ME STRUCK THE CAR IN FRONT OF HIM. BOTH OTHER DRIVERS CLAIM THEY WERE INJURED. MY CAR COST $15,300 TO REPAIR. CHEVROLET IS AWARE OF THIS PROBLEM, ISSUING PRELIMINARY SERVICE BULLETIN PIT5361 IN 2015, ADDENDUM B IN 2016 AND ADDENDUM B IN 2017. THE PROBLEM IS A FAULTY VACUUM PUMP, MASTER CYLINDER, BRAKE BOOSTER, VACUUM LINE, AND VACUUM PUMP BELT. I WAS NEVER INFORMED OF THIS PROBLEM. I HAVE BEEN DRIVING 50 YEARS AND THIS IS MY FIRST CHARGEABLE ACCIDENT.