2000 GMC Envoy Owner's Manual - Page 54

Anchor brackets for the rear outside seat positions are located on the floor in the cargo area of your vehicle. Don't use the rear set of tie-down brackets. Anchor the top strap to the closest bracket on the same side of the vehicle as the child restraint. Securing a Child Restraint in a Rear Outside Seat Position You'll be using the lap-shoulder belt. See the earlier part about the top strap if the child restraint has one. Be sure to follow the instructions that came with the child restraint. Secure the child in the child restraint when and as the instructions say. 1. Put the restraint on the seat. 2. Pick up the latch plate, and run the lap and shoulder portions of the vehicle's safety belt through or around the restraint. The child restraint instructions will show you how. If the shoulder belt goes in front of the child's face or neck, put it behind the child restraint. Once you have the top strap anchored, you'll be ready to secure the child restraint itself. 1-42