1998 GMC Suburban Owner's Manual - Page 22

While the seat is in the folded position, hang the latch plate end of the outer passenger position safety belts on the hooks at the top of each retractor cover, out of the way. To return the seat to the passenger position, just lift up on the seatback and push it rearward until it latches. After returning the seat to the passenger position, pull forward on the seatback to make sure it is locked into place. Also, return the safety belts and head restraints to their original positions, so they will be available for rear seat passengers to use. Folding the Rear Seat (4-Door Utility Model) If your vehicle has a 60/40 rear seat, either side may be folded down to give you more cargo space. Before folding, place the latch portion of the center safety belt in the center armest. That way, the center safety belt will be out of the way when the seat is folded and also will be easily available for passengers to use when the seat is returned to the passenger position. Also, make sure that nothing is under or in front of the seat. When the seat is folded, it will lay flat on the floor. When folding the seat, first remove the head restraints. Push the release buttons at the bottom of each head restraint height adjust post and slide the head restraint out of the height-adjust tubes. Set the head restraints asidefor now. You will stow them in their proper position after you are done folding the seat. 1-10