2003 GMC Sierra 1500 Pickup Owner's Manual - Page 52

7 . ------- I I I When using a child restraint with a top strap in either rear outboard position, raise the head restraint and route the top strap through the fabric loop on the seatback. Then, attach the top strap to the anchor point at the center rear seating position. When using a child restraint with a top strap in the center rear position, route the top strap through the fabric loop on the seatback. Then, raise the head restraint and attach the top strap to the anchor point located at the closest outboard position. Once you have the top strap anchored, you'll be ready to secure the child restrain itself. Tighten the top strap when and as the child restraint manufacturer's instructions say. 1-45