2003 GMC Envoy Owner's Manual - Page 13

Rear Seats Rear Seat Operation Your vehicle may have a folding rear seat which lets you fold the seatbacks down for more cargo space. The rear seatback levers are located on the outboard side of the rear seatbacks. Pull the seatback toward you as you lift up on the lever. The head restraint will automatically fold out of the way when the seatback is folded down. To raise the seatbacks, lift up the seatbacks and push on them until they lock into the upright position. Push and pull on the seatbacks to make sure that they are latched securely. Then fold the bottom seat cushion back into place. Pull up on the loop located where the seat cushion meets the seatback to fold the seat cushion up and out of the way. This will allow the seatback to fold flat and increase the cargo area. 1-6