1998 GMC Suburban Owner's Manual - Page 28

Move the seatback release lever, at the right rear of the seat, toward the center of the vehicle. Replacing the Rear Seat To put the seat back in, hold the seat sideways and put it into the vehicle. Turn the seat to the forward position and set it down, with the latches at the bottom of the seat over the hooks in the floor. Pull up on the center release handle and let the seat drop into place. Release the handle to let the seat latch close and make it locks sure into place. Then, move the seatback release lever at the right rear of the seat toward the centerof the vehicle and raise the seatback. After returning the seatback to the upright position, push the seatback forwardto make sure it is locked into place. Then, return the outside passenger position safety belts to the seat frame buckles, so they will be available for rear seat passengers to use. Then, fold the seatback forward into the seat cusnlon. To unlatch the seat from the floor, pull up on the center release handle at the rear of the seat and lift the rear seat Turn the seat sideways and take it out of the vehicle. 1-16