2017 GMC SIERRA seats

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Seats and Restraints 99
Warning (Continued)
restraint properly using the
anchors, or use the vehicle's
safety belts to secure the
restraint, following the instructions
that came with the child restraint
and the instructions in this
manual.
{Warning
Do not attach more than one child
restraint to a single anchor,
except for the center top tether
anchors in the crew and double
cabs. Attaching more than one
child restraint to a single anchor
could cause the anchor or
attachment to come loose or even
break during a crash. A child or
others could be injured. To reduce
the risk of serious or fatal injuries
during a crash, attach only one
child restraint per anchor.
{Warning
Children can be seriously injured
or strangled if a shoulder belt is
wrapped around their neck. The
shoulder belt can tighten but
cannot be loosened if it is locked.
The shoulder belt locks when it is
pulled all the way out of the
retractor. It unlocks when the
shoulder belt is allowed to go all
the way back into the retractor,
but it cannot do this if it is
wrapped around a child’s neck.
If the shoulder belt is locked and
tightened around a child’s neck,
the only way to loosen the belt is
to cut it.
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,
and tighten the belt behind the
child restraint after the child
restraint has been installed.
Caution
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 rear seatback
when the seat is occupied. 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.
If you need to secure more than one
child restraint in the rear seat, see
Where to Put the Restraint 093.
This system is designed to make
installation of child restraints easier.
When using lower anchors, do not
use the vehicle's safety belts.
Instead use the vehicle's anchors
and child restraint attachments to

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
100 Seats and Restraints
secure the restraints. Some
restraints also use another vehicle
anchor to secure a top tether.
Regular Cab Models1. For models without a rear seat, forward-facing child restraints
should only be installed in the
right front seating position with
safety belts and a top tether.
See Securing Child Restraints
(With the Safety Belt in the
Center Front Seat) 0110 or
Securing Child Restraints (With
the Safety Belt in the Rear
Seat) 0106 orSecuring Child
Restraints (With the Safety Belt
in the Front Passenger Seat)
0 110.
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. Fold the passenger
seatback forward to
access the top tether
anchor. See Reclining
Seatbacks 059.
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
head restraint and you
are using a dual tether,
route the tether around
the head restraint.
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.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Seats and Restraints 101
2. Secure the child restraint in theright front seating position with
the vehicle safety belts.
See Securing Child Restraints
(With the Safety Belt in the
Center Front Seat) 0110 or
Securing Child Restraints (With
the Safety Belt in the Rear
Seat) 0106 orSecuring Child
Restraints (With the Safety Belt
in the Front Passenger Seat)
0 110.
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 safety belt 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 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 ’s
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. 2. For forward-facing child
restraints, attach and tighten
the top tether to the top tether
anchor (loop), if your vehicle
has one. Follow the child
restraint instructions the
vehicle LATCH anchor weight
limits described at the
beginning of this section, and
the following steps:
Example —Rear Driver Side
Position

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
102 Seats and Restraints
Example—Rear Driver Side
Position
2.1. For a top tether in the rear driver side position:
2.1.1. Raise the headrest.
2.1.2. Route the top tether (4) between
the headrest
posts, through the
loop (3), behind
the inboard
headrest post, and
under the center
shoulder belt (2). 2.1.3. Then attach the
top tether (4) to
the top tether
anchor (loop) (1) at
the center rear
seating position.
2.2. For a top tether in the rear center position:
2.2.1. Route the top tether (4) through
the center loop (1),
and behind the
passenger side
headrest post.
2.2.2. Then attach the top tether (4) to
the top tether
anchor (loop) at
the rear passenger
side seating
position.
2.3. For a top tether in the rear passenger position:
2.3.1. Raise the headrest.
2.3.2. Route the top tether (4) between
the headrest posts, through the
loop on the
passenger side
and behind the
inboard
headrest post.
2.3.3. Then attach the top tether (4) to
the top tether
anchor (loop) (1) at
the center rear
seating position.
3. Tighten the top tether per the child restraint manufacturer's
instructions.
When the top tether is properly
tightened, the anchor (loop)
may bend. This is normal and
will not damage the vehicle.
If child restraints are installed
in both outboard positions, both
top tethers can be attached to
the center loop. Top tethers
can be attached for child
restraints in all three rear
seating positions at the same
time, following the routing
instructions above.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Seats and Restraints 103
4. Before placing a child in thechild 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.
Double Cab Models 1. Remove the headrest prior to installing a forward-facing child
restraint in an outboard rear
seating position. See “Headrest
Removal and Reinstallation” at
the end of this section.
2. 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 ’s
instructions and the
instructions in this manual. 2.1. Find the lower anchors
for the desired seating
position.
2.2. Put the child restraint on the seat.
2.3. Attach and tighten the lower attachments on the
child restraint to the lower
anchors.
3. For forward-facing child restraints, attach and tighten
the top tether to the top tether
anchor (loop). Follow the child
restraint instructions, the
vehicle LATCH anchor weight
limits described at the
beginning of this section, and
the following steps:
Example —Rear Driver Side
Position

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
104 Seats and Restraints
Example—Rear Driver Side
Position
3.1. For a top tether in the rear driver side position:
3.1.1. Remove the headrest.
3.1.2. Route the top tether (4) through
the loop (3) on the
driver side under
the center
shoulder belt (2). 3.1.3. Then attach the
top tether (4) to
the top tether
anchor (loop) (1) at
the center rear
seating position.
3.2. For a top tether in the rear center position:
3.2.1. Route the top tether (4) through
the center loop (1),
and behind the
passenger side
headrest post.
3.2.2. Then attach the top tether (4) to
the top tether
anchor (loop) at
the rear passenger
side seating
position.
3.3. For a top tether in the rear passenger position:
3.3.1. Remove the headrest. 3.3.2. Route the top
tether (4) through
the loop on the
passenger side.
3.3.3. Then attach the top tether (4) to
the top tether
anchor (loop) (1) at
the center rear
seating position.
4. Tighten the top tether per the child restraint manufacturer's
instructions.
When the top tether is properly
tightened, the anchor (loop)
may bend. This is normal and
will not damage the vehicle.
If child restraints are installed
in both outboard positions, both
top tethers can be attached to
the center loop. Top tethers
can be attached for child
restraints in all three rear
seating positions at the same
time, following the routing
instructions above.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
Seats and Restraints 105
5. Before placing a child in thechild 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.
Headrest Removal and
Reinstallation
Crew Cab Models
For outboard rear seating positions,
if the child restraint cannot be
installed properly with the headrest
in place, the headrest may be
removed. See your dealer for
assistance with removal.
Store the removed headrests in a
secure place. Reinstall the headrest
before the seating position is
moved. To reinstall the headrest:
1. Insert the headrest posts into
the holes in the top of the
seatback with the longer
chrome plated post toward the
driver side of the vehicle.
2. Push the headrest all the way down until it contacts the top of
the seatback. Double Cab Models
The rear outboard headrests should
be removed when installing
forward-facing child restraints.
To remove the headrest:
1. Press both buttons on the
headrest posts and pull up on
the headrest.
2. Store the headrest in a secure place.
3. When the child restraint is removed, reinstall the headrest
before the seating position
is used.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955992) - 2017 - crc - 4/18/17
106 Seats and Restraints
To reinstall the headrest:
1. Insert the headrest posts intothe holes in the top of the
seatback with the longer
chrome plated post toward the
driver side of the vehicle.
2. Push the headrest all the way down until it contacts the top of
the seatback.
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
(With the Safety Belt in
the Rear Seat)
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) 095 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) 095 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.