SITTING AT A DEAD COLD STOP. AFTER APPROXIMATELY 3 MINUTES - BRAKES JUST RELEASED WITH ME STANDING ON THE PEDAL - ALLOWING ME TO ROLL INTO THE VEHICLE IN FRONT OF ME. MY VEHICLE IMPACTED THE REAR OF THE VEHICLE IN FRONT OF ME AT APPROXIMATELY 5MPH. I WAS LITERALLY SCREAMING AND STANDING ON THE BRAKE PEDAL - ZERO EFFECT. I FELT NO LOSS OF HYDRAULIC PRESSURE OR MECHANICAL FEEDBACK THROUGH THE PEDAL AT ANYTIME. IT'S AS IF THE CALIPERS ALL JUST RELEASED WITH ME ON THE PEDAL THE WHOLE TIME.