1999 GMC Sonoma Owner's Manual - Page 12

yellowblue Jump Seat (Extended Cab Models) CAUTION: If an easy entry right front seat isn't locked, it can move. In a sudden stop or crash, the person sitting there could be injured. After you've used it, be sure to push rearward on an easy entry seat to be sure it is locked. Your extended cab pickup has a jump seat in the rear area. D Tilt the seatback completely forward again to get out. To fold the jump seat down, pull down on the handle on the bottom of the seat until the seat is in place, then move the seatback to a vertical position. To store the seat, fold the seatback down on the cushion, then push the entire seat up until it is flush with the trim panels. Don't let the safety belts be damaged by the hinges or the latches. Safety belts should be folded and stored between the seat cushion and seatback. 1-6