I AM A VICTIM OF A REAR-END MOTOR VEHICLE ACCIDENT. THE SEATS ARE DESIGNED TO LATCH WHEN THE VEHICLE'S BRAKES ARE SUDDENLY APPLIED AND/OR THE VEHICLE SUDDENLY COMES TO A STOP (AS PER THE OWNERS MANUAL). IN MY CASE, MY VEHICLE WAS ALREADY AT A STOP AND THEREFORE THE SEAT NEVER LATCHED. CONSEQUENTLY, THE SEAT CAME FORWARD AND THE HEAD REST STRUCK ME LIKE A TWO BY FOUR. MY INJURIES WERE MORE SEVERE BECAUSE OF THIS SECONDARY IMPACT FROM THE HEAD REST. MY HUSBAND HAS A 1996 CHEVROLET CHEYENNE PICK-UP TRUCK THAT HAS THE SAME SEAT DESIGN. IN ADDITION, IN BOTH VEHICLES EVEN WHEN THE BRAKES ARE APPLIED, THE SEATS BACKS STILL COME FORWARD SEVERAL INCHES BEFORE EVENTUALLY LOCKING. *JB