ECU GMC SIERRA 1500 2012 Owner's Manual

Black plate (42,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
3-42 Seats and Restraints
Children who are not restrained
properly can strike other people,
or can be thrown out of the vehicle.
{WARNING
Never hold an infant or a child
while riding in a vehicle. Due to
crash forces, an infant or a child
will become so heavy it is not
possible to hold it during a crash.
For example, in a crash at only
40 km/h (25 mph), a 5.5 kg (12 lb)
infant will suddenly become a
110 kg (240 lb) force on a person's
arms. An infant should be
secured in an appropriate
restraint.
{WARNING
Children who are up against,
or very close to, any airbag when
it inflates can be seriously injured
or killed. Never put a rear-facing
child restraint in the right front
seat. Secure a rear-facing child
restraint in a rear seat. It is also
better to secure a forward-facing
child restraint in a rear seat. If you
must secure a forward-facing
child restraint in the right front(Continued)
WARNING (Continued)
seat, always move the front
passenger seat as far back as it
will go.
Q: What are the different types ofadd-on child restraints?
A: Add-on child restraints, which
are purchased by the vehicle
owner, are available in four basic
types. Selection of a particular
restraint should take into
consideration not only the child's

Black plate (43,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Seats and Restraints 3-43
weight, height, and age but also
whether or not the restraint will
be compatible with the motor
vehicle in which it will be used.
For most basic types of child
restraints, there are many
different models available. When
purchasing a child restraint, be
sure it is designed to be used
in a motor vehicle. If it is, the
restraint will have a label saying
that it meets federal motor
vehicle safety standards.
The restraint manufacturer's
instructions that come with the
restraint state the weight and
height limitations for a particular
child restraint. In addition, there
are many kinds of restraints
available for children with
special needs.{WARNING
To reduce the risk of neck and
head injury during a crash,
infants need complete support.
In a crash, if an infant is in a
rear-facing child restraint, the
crash forces can be distributed
across the strongest part of an
infant's body, the back and
shoulders. Infants should always
be secured in rear-facing child
restraints.
{WARNING
A young child's hip bones are still
so small that the vehicle's regular
safety belt may not remain low
on the hip bones, as it should.
Instead, it may settle up around
the child's abdomen. In a crash,
the belt would apply force on a
body area that is unprotected by
any bony structure. This alone
could cause serious or fatal
injuries. To reduce the risk of
serious or fatal injuries during a
crash, young children should
always be secured in appropriate
child restraints.

Black plate (45,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Seats and Restraints 3-45
Securing an Add-On Child
Restraint in the Vehicle
{WARNING
A child can be seriously injured
or killed in a crash if the child
restraint is not properly secured
in the vehicle. Secure the child
restraint properly in the vehicle
using the vehicle safety belt or
LATCH system, following the
instructions that came with that
child restraint and the instructions
in this manual.
To help reduce the chance of injury,
the child restraint must be secured
in the vehicle. Child restraint
systems must be secured in vehicle
seats by lap belts or the lap belt
portion of a lap-shoulder belt, or by
the LATCH system. See Lower
Anchors and Tethers for Children
(LATCH System) on page 3‑47. Children can be endangered in a
crash if the child restraint is not
properly secured in the vehicle.
When securing an add-on child
restraint, refer to the instructions
that come with the restraint which
may be on the restraint itself or in a
booklet, or both, and to this manual.
The child restraint instructions
are important, so if they are not
available, obtain a replacement
copy from the manufacturer.
Keep in mind that an unsecured
child restraint can move around in a
collision or sudden stop and injure
people in the vehicle. Be sure to
properly secure any child restraint in
the vehicle
—even when no child is
in it.
In some areas of the United States
and Canada, Certified Child
Passenger Safety Technicians
(CPSTs) are available to inspect
and demonstrate how to correctly
use and install child restraints. In
the U.S., refer to the National
Highway Traffic Safety Administration (NHTSA) website
to locate the nearest child safety
seat inspection station. For CPST
availability in Canada, check with
Transport Canada or the Provincial
Ministry of Transportation office.
Securing the Child Within the
Child Restraint
{WARNING
A child can be seriously injured
or killed in a crash if the child is
not properly secured in the child
restraint. Secure the child
properly following the instructions
that came with that child restraint.
Where to Put the
Restraint
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.

Black plate (46,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
3-46 Seats and Restraints
We recommend that children and
child restraints be secured in a rear
seat, including: an infant or a child
riding in a rear-facing child restraint;
a child riding in a forward-facing
child seat; an older child riding in a
booster seat; and children, who are
large enough, using safety belts.
If a child restraint is secured in the
right front passenger seat, and the
vehicle has a switch in the glove
box to manually turn off the right
front passenger airbag, seeAirbag
On-Off Switch on page 3‑29 and
Securing Child Restraints (Center
Front Seat Position) on page 3‑58
or Securing Child Restraints (Right
Front Seat Position) on page 3‑58
or Securing Child Restraints (Rear
Seat Position) on page 3‑55 for
more information, including
important safety information.
A label on the sun visor says,
“Never put a rear-facing child seat
in the front.” This is because the risk
to the rear-facing child is so great,
if the airbag deploys.{WARNING
A child in a rear-facing child
restraint can be seriously
injured or killed if the right front
passenger airbag inflates. This
is because the back of the
rear-facing child restraint would
be very close to the inflating
airbag. A child in a forward-facing
child restraint can be seriously
injured or killed if the right front
passenger airbag inflates and the
passenger seat is in a forward
position.
Even if the passenger sensing
system or airbag switch has
turned off the right front
passenger frontal airbag, no
system is fail-safe. No one can
guarantee that an airbag will not
deploy under some unusual
circumstance, even though it is
turned off.
(Continued)
WARNING (Continued)
Secure rear-facing child
restraints in a rear seat, even if
the airbag is off. If you secure a
forward-facing child restraint in
the right front seat, always move
the front passenger seat as far
back as it will go. It is better to
secure the child restraint in a
rear seat.
{WARNING
A child in a child restraint in the
center front seat can be badly
injured or killed by the frontal
airbags if they inflate. Never
secure a child restraint in the
center front seat. It is always
better to secure a child restraint in
a rear seat.
Do not use child restraints in the
center front seat position.

Black plate (47,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Seats and Restraints 3-47
When securing a child restraint in a
rear seating position, study the
instructions that came with your
child restraint to make sure it is
compatible with this vehicle.
Child restraints and booster seats
vary considerably in size, and some
may fit in certain seating positions
better than others. Always make
sure the child restraint is properly
secured.
Depending on where you place the
child restraint and the size of the
child restraint, you may not be able
to access adjacent safety belt
assemblies or LATCH anchors for
additional passengers or child
restraints. Adjacent seating
positions should not be used if the
child restraint prevents access to or
interferes with the routing of the
safety belt.
If the vehicle does not have a rear
seat that will accommodate a
rear-facing child restraint, arear-facing child restraint should not
be installed in the vehicle, even if
the airbag is off.
Wherever a child restraint is
installed, be sure to secure the
child restraint properly.
Keep in mind that an unsecured
child restraint can move around in a
collision or sudden stop and injure
people in the vehicle. Be sure to
properly secure any child restraint in
your vehicle
—even when no child
is in it.
Lower Anchors and
Tethers for Children
(LATCH System)
The LATCH system holds a child
restraint during driving or in a crash.
This system is designed to make
installation of a child restraint easier.
The LATCH system uses anchors in
the vehicle and attachments on the
child restraint that are made for use
with the LATCH system. Make sure that a LATCH-compatible
child restraint is properly installed
using the anchors, or use the
vehicle's safety belts to secure the
restraint, following the instructions
that came with that restraint, and
also the instructions in this manual.
When installing a child restraint with
a top tether, you must also use
either the lower anchors or the
safety belts to properly secure the
child restraint. A child restraint must
never be installed using only the top
tether and anchor.
In order to use the LATCH system
in your vehicle, you need a
child restraint that has LATCH
attachments. The child restraint
manufacturer will provide you with
instructions on how to use the
child restraint and its attachments.
The following explains how to
attach a child restraint with these
attachments in your vehicle.
Not all vehicle seating positions or
child restraints have lower anchors
and attachments or top tether
anchors and attachments.

Black plate (48,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
3-48 Seats and Restraints
Lower Anchors
Lower anchors (A) are metal bars
built into the vehicle. There are
two lower anchors for each
LATCH seating position that will
accommodate a child restraint with
lower attachments (B).
Top Tether Anchor
A top tether (A, C) anchors the
top of the child restraint to the
vehicle. A top tether anchor is built
into the vehicle. The top tether
attachment (B) on the child restraint
connects to the top tether anchor in
the vehicle in order to reduce the
forward movement and rotation of
the child restraint during driving or in
a crash.Your child restraint may have
a single tether (A) or a dual
tether (C). Either will have a single
attachment (B) to secure the top
tether to the anchor.
Some child restraints that have a
top tether are designed for use with
or without the top tether being
attached. Others require the top
tether always to be attached. In
Canada, the law requires that
forward-facing child restraints have
a top tether, and that the tether be
attached. Be sure to read and follow
the instructions for your child
restraint.

Black plate (49,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Seats and Restraints 3-49
Lower Anchor and Top Tether
Anchor Locations
Regular Cab—Two-Passenger
Front Seat
Regular Cab —Three-Passenger
Front Seat
i(Top Tether Anchor): Seating
positions with top tether anchors.
Do not install a child restraint in
the center front seat position. See
Securing Child Restraints (Center
Front Seat Position) on page 3‑58
or Securing Child Restraints (Right
Front Seat Position) on page 3‑58
or Securing Child Restraints (Rear
Seat Position) on page 3‑55 for
more information.
Crew and Extended Cab Rear Seat
i(Top Tether Anchor): Seating
positions with top tether anchors.
j(Lower Anchor): Seating
positions with two lower anchors.
For crew and extended cab models,
the rear outboard seating positions
have exposed metal lower anchors
located in the crease between the
seatback and the seat cushion.

Black plate (50,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
3-50 Seats and Restraints
For regular cab models, there is an
anchor symbol on the covers to
assist you in locating the top tether
anchors.
Regular Cab
Do not install a child restraint in the
center seat position. See Securing
Child Restraints (Center Front Seat
Position) on page 3‑58 orSecuring Child Restraints (Right Front Seat
Position) on page 3‑55
orSecuring
Child Restraints (Rear Seat
Position) on page 3‑55 for more
information.
For regular cab models, the top
tether anchors are located under
covers on the back panel behind the
passenger seat. Remove the trim
plug to access the anchor. Be sure
to use an anchor located on the
same side of the vehicle as the
seating position where the child
restraint will be placed.
Crew Cab Shown, Extended Cab
Similar
For crew and extended cab models,
the top tether anchors are the loops
located 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 in the vehicle.
Be sure to use an anchor (loop)
located on the same side of the
vehicle as the seating position
where the child restraint will be
placed.

Black plate (51,1)GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Seats and Restraints 3-51
Be sure to read the instructions
following 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. SeeWhere to Put the
Restraint on page 3‑45 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 restraint properly using the
anchors, or use the vehicle 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 extended
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.

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.