2016 GMC SIERRA ECU

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
96 Seats and Restraints
Regular Cab—Three-Passenger
Front Seat
i: Seating positions with
top tether anchors.
Do not install a child restraint in the
center front seating position. See
Securing Child Restraints (Center
Front Seat) 0105 orSecuring Child
Restraints (Rear Seat) 0105 or
Securing Child Restraints (Front
Passenger Seat) 0108 for more
information.
Crew and Double Cab Rear Seat
i: Seating positions with
top tether anchors.
j: Seating positions with two lower
anchors.
To assist in locating the lower
anchors on crew cab models, each
seating position with lower anchors has two labels near the crease
between the seatback and the seat
cushion.
For double cab models, the rear
outboard seating positions have
exposed metal lower anchors in the
crease between the seatback and
the seat cushion.
For regular cab models, there is an
anchor symbol on the cover to
assist you in locating the top tether
anchors.
Do not install a child restraint in the
center seating position. See
Securing Child Restraints (Center
Front Seat)
0105 orSecuring Child
Restraints (Rear Seat) 0105 or
Securing Child Restraints (Front
Passenger Seat) 0108 for more
information.

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Seats and Restraints 97
Regular Cab
For regular cab models, the top
tether anchors are under covers on
the back panel behind the
passenger seat. Remove the trim
plug to access the anchor. Be sure
to use an anchor on the same side
of the vehicle as the seating
position where the child restraint will
be placed.Crew Cab Shown, Double Cab Similar
For crew and double cab models,
the top tether anchors are the loops
near the top of the seatback for
each rear seating position. These
loops will be used to route the top
tether through, as well as to secure
the top tether to the vehicle. Be sure
to use the anchor (loop) on the
same side of the vehicle as the
seating position where the child
restraint will be placed.
Be sure to read the following
instructions to properly install a child
restraint using these loops. Do not secure a child restraint in a
position without a top tether anchor
if a national or local law requires
that the top tether be attached, or if
the instructions that come with the
child restraint say that the top tether
must be attached.
According to accident statistics,
children and infants are safer when
properly restrained in a child
restraint system or infant restraint
system secured in a rear seating
position. See
Where to Put the
Restraint 092 for additional
information.
Securing a Child Restraint
Designed for the LATCH
System
{Warning
If a LATCH-type child restraint is
not attached to anchors, the child
restraint will not be able to protect
the child correctly. In a crash, the
child could be seriously injured or
killed. Install a LATCH-type child
(Continued)

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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98 Seats and Restraints
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 092.
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 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Seats and Restraints 99
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
(Center Front Seat) 0105 or
Securing Child Restraints
(Rear Seat) 0105 orSecuring
Child Restraints (Front
Passenger Seat) 0108.
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.
2. Secure the child restraint in the right front seating position with
the vehicle safety belts. See
Securing Child Restraints
(Center Front Seat) 0105 or
Securing Child Restraints
(Rear Seat) 0105 orSecuring
Child Restraints (Front
Passenger Seat) 0108.
3. Before placing a child in the child restraint, make sure it is
securely held in place. To

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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100 Seats and Restraints
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
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).

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
9234758) - 2016 - crc - 11/9/15
Seats and Restraints 101
2.1.3. Then attach the toptether (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.
4. 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.
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.

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Seats and Restraints 103
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.
5. 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.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:

GMC Sierra Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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104 Seats and Restraints
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.
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.
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.
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.