2008 GMC Sierra 1500 Pickup Owner's Manual - Page 47

Some child restraints that have a top tether are designed for use with or without the top tether being attached. Others require the top tether always to be attached. In Canada, the law requires that forward-facing child restraints have a top tether, and that the tether be attached. Be sure to read and follow the instructions for your child restraint. If the child restraint does not have a top tether, one can be obtained, in kit form, for many child restraints. Ask the child restraint manufacturer whether or not a kit is available. Lower Anchor and Top Tether Anchor Locations Rear Seat i (Top Tether Anchor): Seating positions with top tether anchors. j (Lower Anchor): Seating positions with two lower anchors. The rear outboard seating positions have exposed metal lower anchors located in the crease between the seatback and the seat cushion. 1-43