2008 GMC ACADIA light

Remove any additional material from the seat such as
blankets, cushions, seat covers, seat heaters, or
seat massagers before reinstalling or securing the child
restraint.
If the on indicator is still lit, secure the child in the child
restraint in a rear seat position in the vehicle, and
check with your dealer/retailer.
The passenger sensing system is designed to enable
(may inate) the right front passenger’s frontal
airbag and seat-mounted side impact airbag anytime the
system senses that a person of adult size is sitting
properly in the right front passenger’s seat. When the
passenger sensing system has allowed the airbags to be
enabled, the on indicator will light and stay lit to
remind you that the airbags are active.
For some children who have outgrown child restraints
and for very small adults, the passenger sensing system
may or may not turn off the right front passenger’s frontal
airbag and seat-mounted side impact airbag, depending
upon the person’s seating posture and body build.
Everyone in your vehicle who has outgrown child
restraints should wear a safety belt properly — whether
or not there is an airbag for that person.If a person of adult-size is sitting in the right front
passenger’s seat, but the off indicator is lit, it could be
because that person is not sitting properly in the seat. If
this happens, turn the vehicle off, remove any additional
material from the seat, such as blankets, cushions,
seat covers, seat heaters or seat massagers and ask
the person to place the seatback in the fully upright
position, then sit upright in the seat, centered on the seat
cushion, with the person’s legs comfortably extended.
Restart the vehicle and have the person remain in
this position for two to three minutes. This will allow the
system to detect that person and then enable the
right front passenger’s frontal airbag and seat-mounted
side impact airbag.
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Safety belts help keep the passenger in position on the
seat during vehicle maneuvers and braking, which
helps the passenger sensing system maintain the
passenger airbag status. See “Safety Belts” and “Child
Restraints” in the Index for additional information
about the importance of proper restraint use.
{CAUTION:
If the airbag readiness light in the instrument
panel cluster ever comes on and stays on, it
means that something may be wrong with the
airbag system. If this ever happens, have the
vehicle serviced promptly, because an
adult-size person sitting in the right front
passenger’s seat may not have the protection
of the airbag(s). SeeAirbag Readiness Light
on page 3-42for more on this, including
important safety information.
A thick layer of additional material, such as a blanket or
cushion, or aftermarket equipment such as seat
covers, seat heaters, and seat massagers can affect
how well the passenger sensing system operates.
We recommend that you not use seat covers or other
aftermarket equipment other than any that GM has
approved for your specic vehicle. SeeAdding
Equipment to Your Airbag-Equipped Vehicle on
page 1-76for more information about modications that
can affect how the system operates.
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Q:Because I have a disability, I have to get my
vehicle modied. How can I nd out whether
this will affect my airbag system?
A:If you have questions, call Customer Assistance.
The phone numbers and addresses for Customer
Assistance are in Step Two of the Customer
Satisfaction Procedure in this manual. See
Customer Satisfaction Procedure on page 7-2.
In addition, your dealer/retailer and the service manual
have information about the location of the airbag sensors,
sensing and diagnostic module and airbag wiring.
Restraint System Check
Checking the Restraint Systems
Safety Belts
Now and then, make sure the safety belt reminder light
and all your belts, buckles, latch plates, retractors
and anchorages are working properly.
Look for any other loose or damaged safety belt system
parts. If you see anything that might keep a safety
belt system from doing its job, 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 3-41for more
information.
Keep safety belts clean and dry. SeeCare of Safety
Belts on page 5-92.
Airbags
The airbag system does not need regularly scheduled
maintenance or replacement. Make sure the airbag
readiness light is working. SeeAirbag Readiness Light
on page 3-42for more information.
Notice:If an airbag covering is damaged, opened,
or broken, the airbag may not work properly. Do
not open or break the airbag coverings. If there are
any opened or broken airbag covers, have the
airbag covering and/or airbag module replaced. For
the location of the airbag modules, seeWhat
Makes an Airbag Inflate? on page 1-68. See your
dealer/retailer for service.
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Replacing Restraint System Parts
After a Crash
{CAUTION:
A crash can damage the restraint systems in
your vehicle. A damaged restraint system may
not properly protect the person using it,
resulting in serious injury or even death in a
crash. To help make sure your restraint
systems are working properly after a crash,
have them inspected and any necessary
replacements made as soon as possible.
If you have had a crash, do you need new belts or
LATCH system (if equipped) parts?
After a very minor crash, nothing may be necessary.
But the belt assemblies that were used during any crash
may have been stressed or damaged. See your
dealer/retailer to have your safety belt assemblies
inspected or replaced.If your vehicle has the LATCH system and it was being
used during a crash, you may need new LATCH
system parts.
New parts and repairs may be necessary even if the
belt or LATCH system (if equipped), was not being used
at the time of the crash.
If an airbag inates, you will need to replace airbag
system parts. See the part on the airbag system earlier
in this section.
Have your safety belt pretensioners checked if your
vehicle has been in a crash, if your airbag readiness
light stays on after you start your vehicle, or while you
are driving. SeeAirbag Readiness Light on page 3-42.
1-78

The RKE transmitter with the remote start button,
provides an increased range of operation. However, the
range may be less while the vehicle is running. As a
result, you may need to be closer to your vehicle to turn
it off, than you were to turn it on.
There are other conditions which can affect the
performance of the transmitter, seeRemote Keyless
Entry (RKE) System on page 2-4for additional
information.
/(Remote Start):This button will be on the RKE
transmitter if you have remote start.
To start the vehicle:
1. Aim the transmitter at the vehicle.
2. Press and release the transmitter’s lock button, then
immediately press and hold the transmitter’s remote
start button until the turn signal lights ash. If you
cannot see the vehicle’s lights, press and hold the
remote start button for at least four seconds. The
vehicle’s doors will lock. Pressing the remote start
button again, after the vehicle has started, will shut
the vehicle off.
When the vehicle starts, the parking lamps will turn
on and remain on while the vehicle is running.3. If it is the rst remote start since the vehicle has
been driven, repeat these steps while the engine
is still running, to extend the time by 10 minutes for
the engine to continue to run. Remote start can
be extended one time.
After entering the vehicle during a remote start, insert
and turn the key to the ON/RUN position to drive
the vehicle.
If the vehicle is left running it will automatically shut off
after 10 minutes unless a time extension has been done.
To manually shut off a remote start:
Aim the RKE transmitter at the vehicle and press
the remote start button until the parking lamps
turn off.
Turn on the hazard warning ashers.
Turn the ignition switch on and then off.
The vehicle can be started using the remote start
feature two separate times between driving sequences.
The engine will run for 10 minutes after each remote
start.
Or, you can extend the engine run time by another
10 minutes within the rst 10 minute remote start time
frame, and before the engine stops.
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The liftgate can also be closed by pressing the power
liftgate button next to the liftgate latch. Press the button
a second time during liftgate operation to reverse that
operation.
The power liftgate may be temporarily disabled under
extreme temperatures, or under low battery conditions. If
this occurs, the liftgate can still be operated manually.If you shift the transmission out of PARK (P) while the
power function is in progress, the liftgate power function
will continue to completion. If you shift the transmission
out of PARK (P) and accelerate before the power
liftgate latches closed, the liftgate may reverse to the
open position. Cargo could fall out of the vehicle. Always
make sure the power liftgate is closed and latched
before you drive away.
If you power open the liftgate and the liftgate support
struts have lost pressure, the lights will ash and a
chime will sound. The liftgate will stay open temporarily,
then slowly close. See your dealer/retailer for service
before using the liftgate.
Obstacle Detection Features
If the liftgate encounters an obstacle during a power
open or close cycle, a warning chime will sound and the
liftgate will automatically reverse direction to the full
closed or open position. After removing the obstruction,
the power liftgate operation can be used again. If the
liftgate encounters multiple obstacles on the same power
cycle, the power function will deactivate, and you
must manually open or close the liftgate. The LIFTGATE
OPEN warning message in the Driver Information
Center (DIC) will indicate that the liftgate is open. After
removing the obstructions, manually open the liftgate
to the full open position or close the liftgate to the fully
closed and latched position. The liftgate will now
resume normal power operation. Power Liftgate Button Near Liftgate Latch
2-16

Your vehicle has pinch sensors located on the side
edges of the liftgate. If an object is caught between the
liftgate and the body and presses against this sensor,
the liftgate will reverse direction and open fully.
The liftgate will remain open until it is activated again or
closed manually. Do not force the liftgate open or
closed during a power cycle.
Manual Operation of Power Liftgate
To change the liftgate to
manual operation, press
the switch on the
center console to the OFF
position.
With the power liftgate disabled and all of the doors
unlocked, the liftgate can be manually opened and
closed.To open the liftgate, press the touchpad on the handle
on the outside of the liftgate, and lift the gate open.
To close the liftgate, use the pull cup to lower the liftgate
and close. The liftgate latch will power close. Always
close the liftgate before driving.
If the RKE button or the power close button on the liftgate
is pressed while power operation is disabled, the lights
will ash three times, but the liftgate will not move.
It is not recommended that you drive with the liftgate
open, however, if you must drive with the liftgate open,
the liftgate should be set to manual operation by
pressing the OFF switch on the center console.
The liftgate has an electric latch. If the battery is
disconnected or has low voltage, the liftgate will not
open. The liftgate will resume operation when the battery
is reconnected and charged.
If the battery is properly connected with adequate
voltage, the switch is not disabled, and the liftgate still
will not function, your vehicle should be taken to a
dealer/retailer for service.
2-17

Express-Down Windows
Windows that have the express-down feature allow the
windows to be lowered without holding the switch.
Press the window switch fully and release it to activate
the express-down feature. The express mode can
be canceled at any time by briey pressing, or pulling
the switch.
Express-Up Window
Windows that have the express-up feature allow the
windows to be raised all the way without holding
the switch up. Pull the switch up fully and release it to
activate the express-up feature. The express-up
mode can be canceled at any time by briey pressing,
or pulling the switch.
Programming the Power Windows
If the battery on your vehicle has been recharged,
disconnected, or replaced, windows with the express-up
feature need to be reprogrammed for this feature to
work. To program the window:
1. With the ignition in the ACCESSORY or ON
positions, or when Retained Accessory
Power (RAP) is active, close all doors. See
Retained Accessory Power (RAP) on page 2-27.2. Press and continue to hold the window switch until
the window is fully open.
3. Pull up and hold the window switch to close the
window. Continue to hold it briey after the
window is fully closed.
4. Repeat for each window that has the express up
feature.
Anti-Pinch Feature
The anti-pinch feature is on windows with the
express-up feature. If an object is in the way of the
window as it is express-closing, or in certain weather
conditions like severe icing, the window will stop
and open to a factory preset position. The window
functions normally once the obstruction is removed.
Window Lockout
o
(Window Lockout):The window lockout switch is
located with the power window switches on the
driver’s door armrest. This feature prevents the rear
passenger windows from operating, except from
the driver’s position. Press the switch to turn the lockout
feature on or off. An indicator light will come on to
show the lockout feature is on.
2-20