Hummer 2006 H2 - Manual (Page 57)

2. If the child restraint manufacturer recommends that
the top tether be attached, attach and tighten the
top tether to the top tether anchor, if equipped.
Refer to the child restraint instructions and
the following steps:
2.1. Find the top tether anchor.
2.2. Route, attach, 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 an adjustable head
restraint and you are using
a single tether, route the
tether under the head
restraint and in between the
head restraint posts.
If the position you are using
has an adjustable head
restraint and you are using
a dual tether, route the
tether under the head
restraint and in between the
head restraint posts.
3. Push and pull the child restraint in different
directions to be sure it is secure.
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