GMC Yukon XL 2015 Owner's Manual page 129

3-60 Seats and Restraints
If the child restraint has the LATCH
system, see Lower Anchors and
Tethers for Children (LATCH
System) on page 3-50 for how and
where to install the child restraint
using LATCH. If a child restraint is
secured in the vehicle using a
safety belt and it uses a top tether,
see Lower Anchors and Tethers for
Children (LATCH System) on
page 3-50 for top tether anchor
locations.
Do not secure a child seat in a
position without a top tether anchor
if a national or local law requires
that the top tether be anchored, or if
the instructions that come with the
child restraint say that the top strap
must be anchored.
In Canada, the law requires that
forward-facing child restraints have
a top tether, and that the tether be
attached.
If the child restraint or vehicle seat
position does not have the LATCH
system, you will be using the safety
belt to secure the child restraint in
this position. Be sure to follow the
instructions that came with the child
restraint. Secure the child in the
child restraint when and as the
instructions say.
If more than one child restraint
needs to be installed in the rear
seat, be sure to read Where to Put
the Restraint on page 3-49.
1. Put the child restraint on
the seat.
For the third row outboard
seating positions, if the head
restraint interferes with the
proper installation of the child
restraint, the head restraint may
be removed. See Head
Restraint Removal and
Reinstallation under Lower
Anchors and Tethers for
Children (LATCH System) on
page 3-50.
2. Pick up the latch plate, and run
the lap and shoulder portions of
the vehicle's safety belt through
or around the restraint. The child
restraint instructions will show
you how.