2013 GMC ACADIA ECU

Black plate (14,1)Acadia/Acadia Denali Owner Manual - 2013 - crc2 - 12/11/12
2-14 Keys, Doors, and Windows
To program the new additional key:
1. Verify that the new key has a
1
stamped on it.
2. Insert the already programmed key in the ignition and start the
engine. If the engine does not
start, see your dealer for service.
3. After the engine has started, turn the key to LOCK/OFF, and
remove the key.
4. Insert the key to be programmed and turn it to the ON/RUN
position within five seconds of
the original key being turned to
the LOCK/OFF position.
The security light turns off once
the key has been programmed.
5. Repeat Steps 1–4 if additional keys are to be programmed. If the PASS-Key III+ key is lost or
damaged, see your dealer or a
locksmith to have a new key made.
The SERVICE THEFT
DETERRENT SYSTEM message
displays on the Driver Information
Center (DIC) when there is a
problem with the theft-deterrent
system. See
Security Messages on
page 5‑38 for additional information.
Do not leave the key or device that
disarms or deactivates the
theft-deterrent system in the vehicle.
Exterior Mirrors
Convex Mirrors
{WARNING
A convex mirror can make things,
like other vehicles, look farther
away than they really are. If you
cut too sharply into the right lane,
you could hit a vehicle on the
right. Check the inside mirror or
glance over your shoulder before
changing lanes.
The passenger side mirror is convex
shaped. A convex mirror's surface is
curved so more can be seen from
the driver seat.

Black plate (1,1)Acadia/Acadia Denali Owner Manual - 2013 - crc2 - 12/11/12
Seats and Restraints 3-1
Seats and
Restraints
Head Restraints
Head Restraints . . . . . . . . . . . . . . . 3-2
Front Seats
Seat Adjustment . . . . . . . . . . . . . . 3-3
Power Seat Adjustment . . . . . . . 3-4
Lumbar Adjustment . . . . . . . . . . . 3-4
Reclining Seatbacks . . . . . . . . . . 3-5
Memory Seats . . . . . . . . . . . . . . . . 3-6
Heated and Ventilated FrontSeats . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Rear Seats
Rear Seats . . . . . . . . . . . . . . . . . . . . 3-9
Third Row Seats . . . . . . . . . . . . . 3-11
Safety Belts
Safety Belts . . . . . . . . . . . . . . . . . . 3-14
How to Wear Safety BeltsProperly . . . . . . . . . . . . . . . . . . . . 3-15 Lap-Shoulder Belt . . . . . . . . . . . 3-16
Safety Belt Use During
Pregnancy . . . . . . . . . . . . . . . . . . 3-21
Safety Belt Extender . . . . . . . . . 3-22
Safety System Check . . . . . . . . 3-22
Safety Belt Care . . . . . . . . . . . . . 3-22
Replacing Safety Belt System Parts after a Crash . . . . . . . . . 3-22
Airbag System
Airbag System . . . . . . . . . . . . . . . 3-23
Where Are the Airbags? . . . . . 3-25
When Should an AirbagInflate? . . . . . . . . . . . . . . . . . . . . . 3-27
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . 3-28
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . 3-28
What Will You See after an Airbag Inflates? . . . . . . . . . . . . 3-29
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . 3-30
Servicing the Airbag-Equipped Vehicle . . . . . . . . . . . . . . . . . . . . . 3-34 Adding Equipment to the
Airbag-Equipped Vehicle . . . 3-35
Airbag System Check . . . . . . . . 3-36
Replacing Airbag System Parts after a Crash . . . . . . . . . 3-36
Child Restraints
Older Children . . . . . . . . . . . . . . . 3-37
Infants and Young
Children . . . . . . . . . . . . . . . . . . . . 3-39
Child Restraint Systems . . . . . 3-41
Where to Put the Restraint . . . 3-43
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . 3-44
Replacing LATCH System Parts After a Crash . . . . . . . . . 3-51
Securing Child Restraints (Rear Seat) . . . . . . . . . . . . . . . . . 3-51
Securing Child Restraints (Front Passenger Seat) . . . . 3-53

Black plate (12,1)Acadia/Acadia Denali Owner Manual - 2013 - crc2 - 12/11/12
3-12 Seats and Restraints
3. Pull up on the release lever onthe back of the seat. The
headrest moves forward
automatically.
4. Push the seatback forward to lay flat.
Returning the Seat to the
Seating Position
To return the seatback to the
seating position:
1. From the rear of the vehicle,raise the seatback to the upright
position using the pullstrap on
the back of the third row seat,
or lift the seatback and push it
into place from inside the
vehicle.
2. The headrest must be locked into place before sitting in
the seat.
{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 in place.
{WARNING
A safety belt that is improperly
routed, not properly attached,
or twisted will not provide the
protection needed in a crash. The
person wearing the belt could be
seriously injured. After raising the
rear seatback, always check to be
sure that the safety belts are
properly routed and attached, and
are not twisted.
4. Reconnect the center safety belt mini-latch to the mini-buckle. Do
not let it twist.
5. Pull on the safety belt to be sure the mini-latch is secure.

Black plate (17,1)Acadia/Acadia Denali Owner Manual - 2013 - crc2 - 12/11/12
Seats and Restraints 3-17
3. Push the latch plate into thebuckle until it clicks.
4. Pull up on the latch plate to make sure it is secure. If the belt
is not long enough, see Safety
Belt Extender on page 3‑22.
Position the release button on
the buckle so that the safety belt
could be quickly unbuckled if
necessary.
5. If equipped with a shoulder belt height adjuster, move it to the
height that is right for you. See
“Shoulder Belt Height Adjuster” later in this section for
instructions on use and
important safety information.
6. To make the lap part tight, pull
up on the shoulder belt.
It may be necessary to pull the
stitching on the safety belt
through the latch plate to fully
tighten the lap belt on smaller
occupants.
To unlatch the belt, push the button
on the buckle. The belt should
return to its stowed position. Slide
the latch plate up the safety belt
webbing when the safety belt is not
in use. The latch plate should rest
on the stitching on the safety belt,
near the guide loop on the side wall.
Before a door is closed, be sure the
safety belt is out of the way. If a
door is slammed against a safety
belt, damage can occur to both the
safety belt and the vehicle.

Black plate (22,1)Acadia/Acadia Denali Owner Manual - 2013 - crc2 - 12/11/12
3-22 Seats and Restraints
Safety Belt Extender
If the vehicle's safety belt will fasten
around you, you should use it.
But if a safety belt is not long
enough, your dealer will order you
an extender. When you go in to
order it, take the heaviest coat you
will wear, so the extender will be
long enough for you. To help avoid
personal injury, do not let someone
else use it, and use it only for the
seat it is made to fit. The extender
has been designed for adults. Never
use it for securing child seats. To
wear it, attach it to the regular safety
belt. See the instruction sheet that
comes with the extender.
Safety System Check
Now and then, check that the safety
belt reminder light, safety belts,
buckles, latch plates, retractors, and
anchorages are all working properly.
Look for any other loose or
damaged safety belt system parts
that might keep a safety belt system
from doing its job. See your dealerto have it repaired. Torn or frayed
safety belts may not protect you in a
crash. They can rip apart under
impact forces. If a belt is torn or
frayed, get a new one right away.
Make sure the safety belt reminder
light is working. See
Safety Belt
Reminders on page 5‑13.
Keep safety belts clean and dry.
See Safety Belt Care on page 3‑22.
Safety Belt Care
Keep belts clean and dry.
{WARNING
Do not bleach or dye safety belts.
It may severely weaken them. In
a crash, they might not be able to
provide adequate protection.
Clean safety belts only with mild
soap and lukewarm water.
Replacing Safety Belt
System Parts after a
Crash
{WARNING
A crash can damage the safety
belt system in the vehicle.
A damaged safety belt system
may not properly protect the
person using it, resulting in
serious injury or even death in a
crash. To help make sure the
safety belt systems are working
properly after a crash, have them
inspected and any necessary
replacements made as soon as
possible.
After a minor crash, replacement of
safety belts may not be necessary.
But the safety belt assemblies that
were used during any crash may
have been stressed or damaged.

Black plate (25,1)Acadia/Acadia Denali Owner Manual - 2013 - crc2 - 12/11/12
Seats and Restraints 3-25
{WARNING
Children who are up against,
or very close to, any airbag when
it inflates can be seriously injured
or killed. Always secure children
properly in the vehicle. To read
how, seeOlder Children on
page 3‑37 orInfants and Young
Children on page 3‑39.
There is an airbag readiness light
on the instrument cluster, which
shows the airbag symbol.
The system checks the airbag
electrical system for malfunctions.
The light tells you if there is an
electrical problem. See Airbag
Readiness Light on page 5‑14 for
more information.
Where Are the Airbags?
The driver frontal airbag is in the
center of the steering wheel.
The front outboard passenger
frontal airbag is in the passenger
side instrument panel.

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Seats and Restraints 3-27
WARNING (Continued)
that person causing severe injury
or even death. The path of an
inflating airbag must be kept
clear. Do not put anything
between an occupant and an
airbag, and do not attach or put
anything on the steering wheel
hub or on or near any other
airbag covering.
Do not use seat or console
accessories that block the
inflation path of a seat-mounted
side impact airbag or the front
center airbag, if equipped.
Never secure anything to the roof
of a vehicle with roof-rail airbags
by routing a rope or tie-down
through any door or window
opening. If you do, the path of an
inflating roof-rail airbag will be
blocked.
When Should an Airbag
Inflate?
The vehicle has frontal airbags,
seat-mounted side impact airbags,
and roof-rail airbags. The vehicle
may have a front center airbag. See
Airbag System on page 3‑23. These
airbags are designed to inflate if the
impact exceeds the specific airbag
system’s deployment threshold.
Deployment thresholds are used to
predict how severe a crash is likely
to be in time for the airbag to inflate
and help restrain the occupants.
Deployment thresholds can vary
with specific vehicle design.
Frontal airbags are designed to
inflate in moderate to severe frontal
or near frontal crashes to help
reduce the potential for severe
injuries, mainly to the driver's or
front outboard passenger's head
and chest.
Whether the frontal airbags will or
should inflate is not based primarily
on how fast the vehicle is traveling. It depends on what is hit, the
direction of the impact, and how
quickly the vehicle slows down.
Frontal airbags may inflate at
different crash speeds depending on
whether the vehicle hits an object
straight on or at an angle, and
whether the object is fixed or
moving, rigid or deformable, narrow
or wide.
Frontal airbags are not intended to
inflate during vehicle rollovers, rear
impacts, or many side impacts.
In addition, the vehicle has
dual-stage frontal airbags.
Dual-stage airbags adjust the
restraint according to crash severity.
The vehicle has electronic frontal
sensors, which help the sensing
system distinguish between a
moderate frontal impact and a more
severe frontal impact. For moderate
frontal impacts, dual-stage airbags
inflate at a level less than full
deployment. For more severe frontal
impacts, full deployment occurs.

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Seats and Restraints 3-31
certain conditions. No other airbag
is affected by the passenger
sensing system.
The passenger sensing system
works with sensors that are part of
the front outboard passenger seat.
The sensors are designed to detect
the presence of a properly-seated
occupant and determine if the front
outboard passenger frontal airbag
should be allowed to inflate or not.
According to accident statistics,
children are safer when properly
secured in a rear seat in the correct
child restraint for their weight
and size.
We recommend that children 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.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 inflates.
{WARNING
A child in a rear-facing child
restraint can be seriously injured
or killed if the passenger frontal
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
passenger frontal airbag inflates
and the passenger seat is in a
forward position.
Even if the passenger sensing
system has turned off the
passenger frontal airbag, no
system is fail-safe. No one can
guarantee that an airbag will not
(Continued)
WARNING (Continued)
inflate under some unusual
circumstance, even though the
airbag is off.
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 front outboard passenger
seat, always move the seat as far
back as it will go. It is better to
secure the child restraint in a
rear seat.
The passenger sensing system is
designed to turn off the front
outboard passenger frontal airbag if:
.The front outboard passenger
seat is unoccupied.
.The system determines that an
infant is present in a child
restraint.