GMC 2002 Safari Owner's Manual page 60

In Canada, the law requires that forward
child restraints have a top strap, and that the strap be
anchored. In the United States, some child restraints
also have a top strap. If your child restraint has a top
strap, it should be anchored.
Anchor the top strap to one of the following anchor
points. Be sure to use an anchor point located on the
same side of the vehicle as the seating position where
the child restraint will be placed. If you have an
adjustable head restraint, route the top strap under it.
Raise the head restraint and route the top strap under it.
Once you have the top strap anchored, you'll be ready
to secure the child restraint itself. Tighten the top
strap when and as the child restraint manufacturer's
instructions say.
If your vehicle is a cargo van, the anchoring point for a
top strap is located at the rear of the seat cushion on the
right front passenger's seat spacer bar. Anchor the top
strap through the two slots.
-
facing
Cargo Van Models
1-53