CHILD PASSENGER, IN THE EXTENDED CAB COMPLAINED OF THE SEAT BELT TIGHTENING. BELT WOULD NOT RELEASE WHEN UNLOCKED, BRUISING SHOULDER/NECK AND ABDOMEN AREA. SEAT BELT WAS CUT WITH A KNIFE. SUDDEN BRAKING OR IMPACT WAS NOT THE CAUSE OF THE SEAT BELT TENSION. DEALER WAS CONTACTED AND WILL REPLACE UNIT. *AK CONSUMER STATES THAT THE SEAT BELT WAS ACTUALLY CHOKING THE CHILD. *SLC