GMC 2013 Terrain Owner's Manual page 92

3-44 Seats and Restraints
1.1. Find the lower anchors for
the desired seating
position.
1.2. Put the child restraint on
the seat.
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.
2.2. Route, attach and tighten
the top tether according to
your child restraint
instructions and the
following instructions:
If the position being used
does not have a headrest
or head restraint and a
single tether is being used,
route the tether over the
seatback.
I n f o r ma t i o n P r o v i d e d b y :
If the position being used
does not have a headrest
or head restraint and a dual
tether is being used, route
the tether over the
seatback.
If the position being used
has a fixed headrest or
head restraint and a dual
tether is being used, route
the tether around the
headrest or head restraint.