Page 71 of 556
Black plate (3,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Seats and Restraints 3-3
Rear Seats
The rear seat has adjustable
headrests in the outboard seating
positions.
The height of the headrest can be
adjusted. Pull the headrest up to
raise it. To lower the headrest, push
down on the headrest.
Rear outboard headrests are not
designed to be removed.
Front Seats
Seat Adjustment
{WARNING
You can lose control of the
vehicle if you try to adjust a 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.
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Black plate (52,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
3-52 Seats and Restraints
{WARNING
Children can be seriously injured
or strangled if a shoulder belt is
wrapped around their neck and
the safety belt continues to
tighten. Buckle any unused safety
belts behind the child restraint so
children cannot reach them. Pull
the shoulder belt all the way out
of the retractor to set the lock,
if the vehicle has one, after the
child restraint has been installed.
Notice: Do not let the LATCH
attachments rub against the
vehicle’ s safety belts. This may
damage these parts. If necessary,
move buckled safety belts to
avoid rubbing the LATCH
attachments.
Do not fold the empty rear seat
with a safety belt buckled. This
could damage the safety belt or
the seat. Unbuckle and return the
safety belt to its stowed position,
before folding the seat. Regular Cab Models
1. If the child restraint manufacturer
recommends that the top tether
be attached, attach and tighten
the top tether to the top tether
anchor, if your vehicle has one.
Refer to the child restraint
instructions and the following
steps:
1.1. Pull the passenger seatback forward by pulling
the recliner handle upward
to access the top tether
anchor. See Reclining
Seatbacks on page 3‑5 for
additional information.
1.2. Find the top tether anchor.
1.3. Remove the cover to expose the anchor. 1.4. Route, attach, and tighten
the top tether according
to your child restraint
instructions and the
following instructions:
If the position you are using
has an adjustable headrest
or head restraint and you
are using a dual tether,
route the tether around the
headrest or head restraint.
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Black plate (53,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Seats and Restraints 3-53
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.2. See
Securing Child Restraints
(Center Front Seat Position) on
page 3‑58 orSecuring Child
Restraints (Right Front Seat
Position) on page 3‑58 or
Securing Child Restraints (Rear
Seat Position) on page 3‑55 for
instructions on installing the
child restraint using the safety
belts.
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. Crew and Extended Cab Models
1. Attach and tighten the lower
attachments to the lower
anchors. If the child restraint
does not have lower
attachments or the desired
seating position does not have
lower anchors, secure the child
restraint with the top tether and
the safety belts. Refer to your
child restraint manufacturer
instructions and the instructions
in this manual.
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.
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Black plate (54,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
3-54 Seats and Restraints
2. If the child restraint manufacturerrecommends that the top tether
be attached, attach and tighten
the top tether to the top tether
anchor (loop), if your vehicle has
one. Refer to the child restraint
instructions and the following
steps:
Example —Rear Driver Side
Position
Example —Rear Driver Side
Position
2.1. When using a child restraint with a top tether in the rear
driver side position:
A. Raise the headrest or head restraint.
B. Route the top tether (B) between
the headrest or
head restraint posts,
through the loop (A),
behind the inboard headrest or head
restraint post, and
under the center
shoulder belt (C).
C. Attach the top tether (B) to
the top tether
anchor (loop) (D)
at the center rear
seating position.
2.2. When using a child restraint with a top tether in the rear
center position:
A. Route the top tether (B) through
the center loop (D),
and behind the
inboard passenger
side headrest or
head restraint post.
B. Attach the top tether (B) to the
top tether anchor
(loop) at the rear
passenger side
seating position.
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Black plate (55,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Seats and Restraints 3-55
2.3. When using a child restraintwith a top tether in the rear
passenger position:
A. Raise the headrest
or head restraint.
B. Route the top tether (B) between
the headrest or
head restraint posts,
through the loop on
the passenger side
and behind the
inboard headrest or
head restraint post.
C. Attach the top tether (B) to
the top tether
anchor (loop) (D) at
the center rear
seating position.
2.4. Tighten the top tether when and as the child
restraint manufacturer's
instructions say. When the top tether is
tightened, the anchor (loop)
may bend. This is normal
and will not damage the
vehicle.
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.
(Continued)
WARNING (Continued)
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.