MY SON WAS INVOLVED IN AN ACCIDENT ON 4/22/2010 WHILE DRIVING A 2000 FORD F-150 4X2 TWO DOOR PICKUP TRUCK. SIDE MARKS AT THE SCENE REVEALED THAT THE F-150'S ANTI-LOCK BRAKES DID NOT ENGAGE CAUSING THE TRUCK TO SLIDE RESULTING IN A FAILURE TO STOP IN TIME TO AVOID THE ACCIDENT. THE AIR BAG DID NOT DEPLOY AFTER THE FRONT-END IMPACT AND THE SEATBELT DID NOT LOCK CAUSING MY SON TO BE THROWN FORWARD HEATING HIS HEAD ON THE SUN VISOR AND SNAPPING HIS HEAD BACKWARD ROLLING HIS FACE INTO THE ROOF OF THE TRUCK AND INJURING HIS NECK. HE ALSO BRUISED SOME RIBS ON THE STEERING WHEEL AND JAMMED SEVERAL FINGERS. THE SEATBELT DID KEEP HIM FROM BEING EJECTED FROM THE VEHICLE BUT BY NOT ENGAGING, CAUSED UNNECESSARY INJURIES. HAD HE BEEN DRIVING AT A HIGHER RATE OF SPEED AT THE TIME OF THE IMPACT HE INJURIES WOULD HAVE BEEN FAR MORE SERIOUS AND EVEN LIFE THREATENING. WE PURCHASED THIS F150 ON 1/19/2010 FROM THE CITY OF MOUNT JULIET, TN. THE VEHICLE WAS WELL MAINTAINED BY THE CITY ACCORDING TO THE VEHICLE MAINTENANCE RECORDS. WE REQUEST TO HAVE A NON-PARTIAL EXPERT EXAMINE THE VEHICLE TO DETERMINE THE CAUSE OF THE SAFETY FEATURES FAILURE TO DEPLOY ON THIS VEHICLE. *TR