GMC 2006 Canyon - Manual (Page 68)

5. Pull the rest of the shoulder belt all the way out of
the retractor to set the lock.
6. To tighten the belt, push down on the child restraint,
pull the shoulder portion of the belt to tighten the
lap portion of the belt and feed the shoulder
belt back into the retractor. If you are using a
forward-facing child restraint, you may find it helpful
to use your knee to push down on the child
restraint as you tighten the belt. You should not be
able to pull more of the belt from the retractor
once the lock has been set.
7. If your vehicle does not have rear seats and if your
child restraint has a top tether, attach and tighten
the top tether to the top tether anchor. See Lower
Anchors and Tethers for Children (LATCH) on
page 1-46.
1-62