Buick 2006 LaCrosse Owner's Manual page 51

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. Flip open the top tether anchor trim cover to
expose the anchor.
2.3. 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.
3. Push and pull the child restraint in different
directions to be sure it is secure.
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.
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