2006 GMC Envoy Owner's Manual - Page 56

2. If the child restraint manufacturer recommends that the top tether be attached, attach and tighten the top tether to the top tether anchor, if equipped. Refer to the child restraint instructions and the following steps: 2.1. Find the top tether anchor. 2.2. Route and tighten the top tether according to your child restraint instructions and the following instructions. For five-passenger vehicles, if your vehicle is equipped with a cargo shade, route the top tether between the seatback and the cargo shade. If the position you are using does not have a head restraint and you are using a single tether, route the tether over the seatback. For five-passenger vehicles that have a head restraint, fold down the head restraint and route the single tether under the head restraint and in between the head restraint posts. See Rear Seat Operation on page 1-9. For seven-passenger vehicles that have adjustable head restraints, raise the head restraint and route the single tether under the head restraint and in between the head restraint posts. If the position you are using has a head restraint and you are using a dual tether, route the tether around the head restraint. If the position you are using does not have a head restraint and you are using a dual tether, route the tether over the seatback. 3. Push and pull the child restraint in different directions to be sure it is secure. 1-50