Page 63 of 528
Black plate (3,1)GMC Yukon/Yukon XL Owner Manual - 2011
Seats and Restraints 3-3
Push down on the head restraint
after the button is released to make
sure that it is locked in place.
The head restraints are not
designed to be removed.
The vehicle's 2nd-row seats have
head restraints in the outboard
seating positions that cannot be
adjusted.
The vehicle's 3rd-row seat,
if equipped, has headrests that
can be adjusted up and down.Front Seats
Seat Adjustment
{WARNING
You can lose control of the
vehicle if you try to adjust a
manual driver seat while the
vehicle is moving. The sudden
movement could startle and
confuse you, or make you push a
pedal when you do not want to.
Adjust the driver seat only when
the vehicle is not moving.
To adjust the seat:
1. Lift the bar under the front edgeof the seat cushion to unlock
the seat.
2. Slide the seat to the desired position and release the bar.
3. Try to move the seat back and forth to be sure the seat is
locked in place.
Page 78 of 528

Black plate (18,1)GMC Yukon/Yukon XL Owner Manual - 2011
3-18 Seats and Restraints
Returning the Seatback to the
Upright Position
To return the seatback to the upright
position:
1. Open the liftgate to access thecontrols for the seat.
2. Raise the seatback to the upright position.
{WARNING
If either seatback is not locked, it
could move forward in a sudden
stop or crash. That could cause
injury to the person sitting there.
Always push and pull on the
seatbacks to be sure they are
locked.
3. Push and pull on the seatback to make sure it is locked.
Tumbling the Third Row Seat
To tumble the seat:
1. Open the liftgate to access thecontrols for the seat.
2. Make sure the headrests are completely lowered and there is
nothing under, in front of, or on
the seat.
3. Fold the seatbacks forward using lever “1”and the
instructions listed previously
under “Folding the Seatback.”
The seat cannot be unlatched
from the floor unless the
seatback is folded.
4. Unlatch the seat from the floor by lifting lever “2”next to the
carrying handle on the rear of
the seat, near the bottom.
5. Lift the rear of the seat up from the floor.
6. Tilt the seat fully forward to lock it into place.
7. Push and pull on the seat to make sure it is locked.
Put the seat in this position only
when necessary for additional cargo
space.
Page 128 of 528

Black plate (68,1)GMC Yukon/Yukon XL Owner Manual - 2011
3-68 Seats and Restraints
Refer to the child restraint
instructions and the following
steps:
2.1. Find the top tether anchor.
2.2. Route, attach, and tightenthe top tether according
to your child restraint
instructions and the
following instructions:
.If the position you are using
does not have a headrest
or 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 headrest
or head restraint and you
are using a dual tether,
route the tether over the
seatback.
.If the position you are using
has an adjustable headrest
or head restraint and you are using a single tether,
raise the headrest or head
restraint and route the
tether under the headrest
or head restraint and in
between the headrest or
head restraint posts.
.If the position you are
using has a fixed headrest
or head restraint and you
are using a single tether,
route the tether around the
inboard or outboard side
of the headrest or head
restraint.
Page 129 of 528

Black plate (69,1)GMC Yukon/Yukon XL Owner Manual - 2011
Seats and Restraints 3-69
.If the position you are using
has a fixed or an adjustable
headrest or head restraint
and you are using a dual
tether, route the tether
around the headrest or
head restraint.
3. Before placing a child in the child restraint, make sure it
is securely held in place. To
check, grasp the child restraint
at the LATCH path and attempt
to move it side‐to‐side and
back‐and‐forth. There should
be no more than 2.5 cm (1 in)
of movement, for proper
installation.
Replacing LATCH System
Parts After a Crash
{WARNING
A crash can damage the
LATCH system in the vehicle.
A damaged LATCH system may
not properly secure the child
restraint, resulting in serious
injury or even death in a crash.
To help make sure the LATCH
system is working properly after
a crash, see your dealer to have
the system inspected and any
necessary replacements made
as soon as possible.
If the vehicle has the LATCH system
and it was being used during a
crash, new LATCH system parts
may be needed.
New parts and repairs may be
necessary even if the LATCH
system was not being used at the
time of the crash.
Securing Child Restraints
(Rear Seat Position)
When securing a child restraint
in a rear seating position, study
the instructions that came with the
child restraint to make sure it is
compatible with this vehicle.
If the child restraint has the
LATCH system, see Lower Anchors
and Tethers for Children (LATCH
System) on page 3‑62 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 3‑62 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.