2003 GMC Envoy Owner's Manual - Page 118

~~ Lower Position Insert thefront corners of the panel into the lower guides and slide the panel forward. Press down on the back of the panelto lock it in place. To prevent soiling the carpet, the panel maybe installed either side up. Vertical Position Insert the front corners of the panel into the vertical guides behind the seatbacks and slide the panel down. Plastic grocery bags can be attached to the hooks on the panel. Notice: To help avoid damage, do not load objects over 200 Ibs. (90 kg) in this position. Failure to follow this warning could damage the shelf. Notice: When in vertical position, the shelf panel in should not be used a barrier for large objects as the cargoarea when the seatbacks are folded down. 2-49