GMC 2016 Yukon User Manual page 110

1.3. Attach and tighten the
lower attachments on the
child restraint to the lower
anchors.
2. If the child restraint
manufacturer recommends that
the top tether be attached,
attach and tighten the top
tether to the top tether anchor.
Refer to the child restraint
instructions and the following
steps:
2.1. Find the top tether anchor.
For models with a third
row seat, move the flipper
panel rearward to access
the top tether anchors.
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
Seats and Restraints
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,
raise the head restraint
and route the tether
under the head
restraint and in
between the head
restraint posts.
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