Buick Encore 2015 Owner's Manual page 94

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.
Seats and Restraints
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.
If the position you are using
has an adjustable head
restraint and you are using
a dual tether, raise the head
restraint and route the
tether under the head
restraint and around the
head restraint posts.
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