
GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
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Seats and Restraints 69
Warning (Continued)
seat. Consider using another
vehicle to transport the child
when a rear seat is not available.
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.
. A front outboard passenger
takes his/her weight off of the
seat for a period of time.
. There is a critical problem with
the airbag system or the
passenger sensing system.
When the passenger sensing
system has turned off the front
outboard passenger frontal airbag,
the off indicator will light and stay lit
as a reminder that the airbag is off.
See Passenger Airbag Status
Indicator 0108. The passenger sensing system is
designed to turn on the front
outboard passenger frontal airbag
anytime the system senses that a
person of adult size is sitting
properly in the front outboard
passenger seat.
When the passenger sensing
system has allowed the airbag to be
enabled, the on indicator will light
and stay lit as a reminder that the
airbag is active.
For some children, including
children in child restraints, and for
very small adults, the passenger
sensing system may or may not turn
off the front outboard passenger
frontal airbag, depending upon the
person’
s seating posture and body
build. Everyone in the vehicle who
has outgrown child restraints should
wear a safety belt properly —
whether or not there is an airbag for
that person.
{Warning
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. See Airbag Readiness
Light 0108 for more information,
including important safety
information.
If the On Indicator Is Lit for a
Child Restraint
The passenger sensing system is
designed to turn off the front
outboard passenger frontal airbag if
the system determines that an infant
is present in a child restraint. If a
child restraint has been installed
and the on indicator is lit:
1. Turn the vehicle off.
2. Remove the child restraint from the vehicle.

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
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70 Seats and Restraints
3. Remove any additional itemsfrom the seat such as blankets,
cushions, seat covers, seat
heaters, or seat massagers.
4. Reinstall the child restraint following the directions
provided by the child restraint
manufacturer and refer to
Securing Child Restraints (With
the Safety Belt in the Rear
Seat) 087 orSecuring Child
Restraints (With the Safety Belt
in the Front Seat) 089.
5. If, after reinstalling the child restraint and restarting the
vehicle, the on indicator is still
lit, turn the vehicle off. Then
slightly recline the vehicle
seatback and adjust the seat
cushion, if adjustable, to make
sure that the vehicle seatback
is not pushing the child
restraint into the seat cushion.
Also make sure the child
restraint is not trapped under
the vehicle head restraint.
If this happens, adjust the head
restraint. See Head
Restraints 044. 6. Restart the vehicle.
The passenger sensing system
may or may not turn off the
airbag for a child in a child
restraint depending upon the
child’s size. It is better to
secure the child restraint in a
rear seat. Never put a
rear-facing child restraint in the
front seat, even if the on
indicator is not lit.
If the Off Indicator Is Lit for an
Adult-Sized Occupant
If a person of adult size is sitting in
the front outboard passenger seat,
but the off indicator is lit, it could be because that person is not sitting
properly in the seat. Use the
following steps to allow the system
to detect that person and enable the
front outboard passenger frontal
airbag:
1. Turn the vehicle off.
2. Remove any additional material from the seat, such as
blankets, cushions, seat
covers, seat heaters, or seat
massagers. Also remove
laptops, or other electronic
devices.
3. Place the seatback in the fully upright position.
4. Have the person sit upright in the seat, centered on the seat
cushion, with legs comfortably
extended.
5. Restart the vehicle and have the person remain in this
position for two to
three minutes after the on
indicator is lit.

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
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Seats and Restraints 71
{Warning
If the front outboard passenger
airbag is turned off for an
adult-sized occupant, the airbag
will not be able to inflate and help
protect that person in a crash,
resulting in an increased risk of
serious injury or even death. An
adult-sized occupant should not
ride in the front outboard
passenger seat, if the passenger
airbag off indicator is lit.
Additional Factors Affecting
System Operation
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. 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 except when
approved by GM for your specific
vehicle. See
Adding Equipment to
the Airbag-Equipped Vehicle 072
for more information about
modifications that can affect how
the system operates.
A wet seat can affect the
performance of the passenger
sensing system. Here is how:
. The passenger sensing system
may turn off the passenger
airbag when liquid is soaked into
the seat. If this happens, the off
indicator will be lit, and the
airbag readiness light on the
instrument panel will also be lit.
. Liquid pooled on the seat that
has not soaked in may make it
more likely that the passenger
sensing system will turn on the passenger airbag while a child
restraint or child occupant is on
the seat. If the passenger airbag
is turned on, the on indicator will
be lit.
If the passenger seat gets wet, dry
the seat immediately. If the airbag
readiness light is lit, do not install a
child restraint or allow anyone to
occupy the seat. See Airbag
Readiness Light 0108 for important
safety information.
The on indicator may be lit if an
object, such as a briefcase,
handbag, grocery bag, laptop or
other electronic device, is put on an
unoccupied seat. If this is not
desired remove the object from
the seat.
{Warning
Stowing of articles under the
passenger seat or between the
passenger seat cushion and
seatback may interfere with the
proper operation of the passenger
sensing system.

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
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Seats and Restraints 73
vehicle is modified for any other
reason, call Customer Assistance.
SeeCustomer Assistance
Offices 0306.
Airbag System Check
The airbag system does not need
regularly scheduled maintenance or
replacement. Make sure the airbag
readiness light is working. See
Airbag Readiness Light 0108.
Caution
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
coverings, have the airbag
covering and/or airbag module
replaced. For the location of the
airbags, see Where Are the
Airbags? 063. See your dealer
for service.
Replacing Airbag System
Parts after a Crash
{Warning
A crash can damage the airbag
systems in the vehicle.
A damaged airbag system may
not properly protect you and your
passenger(s) in a crash, resulting
in serious injury or even death. To
help make sure the airbag
systems are working properly
after a crash, have them
inspected and any necessary
replacements made as soon as
possible.
If an airbag inflates, you will need to
replace airbag system parts. See
your dealer for service.
If the airbag readiness light stays on
after the vehicle is started or comes
on when you are driving, the airbag
system may not work properly. Have
the vehicle serviced right away. See
Airbag Readiness Light 0108.
Child Restraints
Older Children
Older children who have outgrown
booster seats should wear the
vehicle’s safety belts.

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
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90 Seats and Restraints
Warning (Continued)
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.
SeePassenger Sensing System
0 68 for additional information.
If the child restraint uses a top
tether, see Lower Anchors and
Tethers for Children (LATCH
System) 080 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.
In Canada, the law requires that
forward-facing child restraints have
a top tether, and that the tether be
attached. When using the lap-shoulder belt to
secure the child restraint in this
position, follow the instructions that
came with the child restraint and the
following instructions:
1. Move the seat as far back as it will go before securing the
forward-facing child restraint.
Move the seat upward or the
seatback to an upright position,
if needed, to get a tight
installation of the child
restraint.
When the passenger sensing
system has turned off the front
outboard passenger frontal
airbag, the off indicator on the
passenger airbag status
indicator should light and stay
lit when you start the vehicle.
See Passenger Airbag Status
Indicator 0108.
2. Put the child restraint on the seat.
3. Pick up the latch plate, and run the lap and shoulder portions
of the vehicle's safety belt through or around the restraint.
The child restraint instructions
will show you how.
4. Push the latch plate into the
buckle until it clicks.
Position the release button on
the buckle, away from the child
restraint system, so that the
safety belt could be quickly
unbuckled if necessary.

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
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Instruments and Controls 97
Instruments and
Controls
Controls
Steering Wheel Adjustment . . . . 98
Steering Wheel Controls . . . . . . . 98
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Windshield Wiper/Washer . . . . . . 98
Rear Window Wiper/Washer . . . 99
Compass . . . . . . . . . . . . . . . . . . . . . . 99
Clock . . . . . . . . . . . . . . . . . . . . . . . . . 101
Power Outlets . . . . . . . . . . . . . . . . 101
Warning Lights, Gauges, and
Indicators
Warning Lights, Gauges, andIndicators . . . . . . . . . . . . . . . . . . . 103
Instrument Cluster . . . . . . . . . . . . 104
Speedometer . . . . . . . . . . . . . . . . . 105
Odometer . . . . . . . . . . . . . . . . . . . . . 105
Tachometer . . . . . . . . . . . . . . . . . . . 105
Fuel Gauge . . . . . . . . . . . . . . . . . . . 105
Engine Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 106
Voltmeter Gauge . . . . . . . . . . . . . 107 Safety Belt Reminders . . . . . . . . 107
Airbag Readiness Light . . . . . . . 108
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . 108
Charging System Light . . . . . . . 109
Malfunction Indicator Lamp
(Check Engine Light) . . . . . . . . 109
Brake System Warning Light . . . . . . . . . . . . . . . . . . . . . . . . . 111
Antilock Brake System (ABS) Warning Light . . . . . . . . . . . . . . . 112
Tow/Haul Mode Light . . . . . . . . . 112
Lane Departure Warning (LDW) Light . . . . . . . . . . . . . . . . . 113
Vehicle Ahead Indicator . . . . . . . 113
StabiliTrak
®Indicator Light . . . 113
Engine Coolant Temperature Warning Light . . . . . . . . . . . . . . . 113
Tire Pressure Light . . . . . . . . . . . 114
Engine Oil Pressure Light . . . . . 114
Security Light . . . . . . . . . . . . . . . . . 115
High-Beam On Light . . . . . . . . . . 115
Front Fog Lamp Light . . . . . . . . . 115
Cruise Control Light . . . . . . . . . . 115
Information Displays
Driver Information Center (DIC) . . . . . . . . . . . . . . . . 116
Head-Up Display (HUD) . . . . . . 120
Vehicle Messages
Vehicle Messages . . . . . . . . . . . . 123
Battery Voltage and Charging Messages . . . . . . . . . . . . . . . . . . . 124
Brake System Messages . . . . . 124
Cruise Control Messages . . . . . 124
Door Ajar Messages . . . . . . . . . . 124
Engine Cooling System Messages . . . . . . . . . . . . . . . . . . . 125
Engine Oil Messages . . . . . . . . . 126
Engine Power Messages . . . . . 126
Fuel System Messages . . . . . . . 126
Key and Lock Messages . . . . . 127
Lamp Messages . . . . . . . . . . . . . . 127
Object Detection System Messages . . . . . . . . . . . . . . . . . . . 127
Ride Control System Messages . . . . . . . . . . . . . . . . . . . 129
Airbag System Messages . . . . 129
Security Messages . . . . . . . . . . . 129
Service Vehicle Messages . . . . 130
Tire Messages . . . . . . . . . . . . . . . . 130
Transmission Messages . . . . . . 131
Vehicle Reminder Messages . . . . . . . . . . . . . . . . . . . 132
Vehicle Speed Messages . . . . . 132
Washer Fluid Messages . . . . . . 132

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
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100 Instruments and Controls
compass variance by resetting the
zone through the DIC if the zone is
not set correctly.
Compass variance is the difference
between the earth's magnetic north
and true geographic north. If the
compass is not set to the zone
where you live, the compass may
give false readings. The compass
must be set to the variance zone in
which the vehicle is traveling.
To adjust for compass variance, use
the following procedure:
Compass Variance (Zone)
Procedure1. Do not set the compass zone when the vehicle is moving.
Only set it when the vehicle is
in P (Park).
Press the vehicle information
button until PRESS
VTO
CHANGE COMPASS ZONE
displays.
2. Find the vehicle's current location and variance zone
number on the map.
Zones 1 through 15 are
available.
3. Press the set/reset button to scroll through and select the
appropriate variance zone.
4. Press the trip/fuel button until the vehicle heading, for
example, N for North, is
displayed in the DIC.
5. If calibration is necessary, calibrate the compass. See
“Compass Calibration
Procedure” following. Compass Calibration
The compass can be manually
calibrated. Only calibrate the
compass in a magnetically clean
and safe location, such as an open
parking lot, where driving the
vehicle in circles is not a danger.
It is suggested to calibrate away
from tall buildings, utility wires,
manhole covers, or other industrial
structures, if possible.
If CAL should ever appear in the
DIC display, the compass should be
calibrated.
If the DIC display does not show a
heading, for example, N for North,
or the heading does not change
after making turns, there may be a
strong magnetic field interfering with
the compass. Such interference
may be caused by a magnetic CB or
cell phone antenna mount, a
magnetic emergency light, magnetic
note pad holder, or any other
magnetic item. Turn off the vehicle,
move the magnetic item, then turn
on the vehicle and calibrate the
compass.

GMC Acadia Limited Owner Manual (GMNA-Localizing-U.S.-10283134) -
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102 Instruments and Controls
{Warning
Power is always supplied to the
outlets. Do not leave electrical
equipment plugged in when the
vehicle is not in use because the
vehicle could catch fire and cause
injury or death.
Caution
Leaving electrical equipment
plugged in for an extended period
of time while the vehicle is off will
drain the battery. Always unplug
electrical equipment when not in
use and do not plug in equipment
that exceeds the maximum
20 amp rating.
Certain accessory plugs may not be
compatible with the accessory
power outlet and could overload
vehicle and adapter fuses. If a
problem is experienced, see your
dealer. When adding electrical equipment,
be sure to follow the proper
installation instructions included with
the equipment. See
Add-On
Electrical Equipment 0207.
Caution
Hanging heavy equipment from
the power outlet can cause
damage not covered by the
vehicle warranty. The power
outlets are designed for
accessory power plugs only, such
as cell phone charge cords.
Power Outlet 110V/120V
Alternating Current
If equipped with this power outlet it
can be used to plug in electrical
equipment that uses a maximum
limit of 150 watts.
The power outlet is on the rear of
the center console.
An indicator light on the outlet turns
on to show it is in use. The light
comes on when the ignition is in
ON/RUN, equipment requiring less
than 150 watts is plugged into the
outlet, and no system fault is
detected.
The indicator light does not come on
when the ignition is in LOCK/OFF or
if the equipment is not fully seated
into the outlet.
If equipment is connected using
more than 150 watts or a system
fault is detected, a protection circuit
shuts off the power supply and the
indicator light turns off. To reset the
circuit, unplug the item and plug it
back in or turn the Retained