Buick Verano Owner's Manual page 90

3-42 Seats and Restraints
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, if equipped. Refer to the
child restraint instructions and
the following steps:
2.1. Find the top tether anchor.
Open the top tether anchor
cover to expose the anchor.
2.2. Route, attach, and tighten
the top tether according to
the child restraint
instructions and the
following instructions:
If you are using a single
.
tether in a rear outboard
seating position with an
adjustable head restraint,
raise the head restraint and
route the single tether
under the head restraint
and in between the head
restraint posts.
If you are using a dual
.
tether in a rear outboard
seating position with an
adjustable head restraint,
raise the head restraint and
route the tether under the
head restraint and around
the head restraint posts.
If you are using a single
.
tether in a rear outboard
seating position and the
head restraint has been
removed, route the single
tether over the seatback.