Hummer 2006 H3 - Manual (Page 52)

5. If the child restraint is forward-facing, attach and
tighten the top tether to the top tether anchor.
Refer to the child restraint instructions and
the following steps:
5.1. Find the top tether anchor.
5.2. Route and tighten the top tether according
to your child restraint instructions and the
following instructions:
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.
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.
If the position you are
using has a fixed head
restraint and you are
using a single tether, route
the tether over the head
restraint.
If the position you are
using has a fixed head
restraint and you are
using a dual tether, route
the tether around the
head restraint.
6. Push and pull the child restraint in different
directions to be sure it is secure.
1-46