FORWARD COLLISION WARNING (FCW) WITH MITIGATION SYSTEM DID NOT WORK AT A SPEED OF 15 MILES PER HOUR. A VEHICLE IN FRONT OF MY VEHICLE STOPPED ABRUPTLY IN THE MIDDLE OF THE ROAD AND I ATTEMPTED TO APPLY THE BRAKES BUT IT WAS TO LATE AND I HIT THE REAR OF THE VEHICLE IN FRONT OF ME. MY VEHICLE WHICH WAS TRAVELING AT 15 MILES PER HOUR GAVE NO FORWARD COLLISION WARNING NOR DID IT ATTEMPT TO APPLY THE BRAKES. IT IS MY UNDERSTANDING THAT THE SYSTEM WAS MADE FOR THIS TYPE OF OCCURRENCE AND THE SAFETY FEATURE SHOULD HAVE WORKED. THE FRONT OF MY VEHICLE SUSTAINED $6500 IN DAMAGE FROM A MINOR 15 MPH ACCIDENT THAT SHOULD HAVE BEEN AVOIDED OR LESSENED WITH THE TECHNOLOGY PACKAGE THAT I PURCHASED AS AN ADD ON TO THE VEHICLE.