WHILE DRIVING ON THE FREEWAY AT APPROXIMATELY 55-60 MPH TRAFFIC CAME TO A SUDDEN STOP. I APPLIED THE BRAKES TO THE 2007 TOYOTA YARIS, 4 DOOR AND INSTEAD OF BRAKING NORMALLY, THE BRAKES LOCKED, CAUSING THE CAR TO SLID 30-40 FEET, STRIKING THE STOPPED CAR IN FRONT OF MINE. THE IMPACT CAUSED SIGNIFICANT FRONT END DAMAGE AND YET NONE OF THE AIR BAGS DEPLOYED. FORTUNATELY THERE WERE NO SERIOUS INJURIES, HOWEVER BOTH THE BRAKING SYSTEM AND THE AIRBAGS FAILED TO WORK PROPERLY. THE ROAD CONDITIONS WERE DRY AND THERE WERE NO OTHER FACTORS THAT WOULD HAVE AFFECTED THE INCIDENT. *TR