2011 GMC ACADIA warning light

Black plate (16,1)GMC Acadia/Acadia Denali Owner Manual - 2011
5-16 Instruments and Controls
The airbag readiness light comes
on and stay on for several seconds
when the vehicle is started.
Then the light turns off.
{WARNING
If the airbag readiness light stays
on after the vehicle is started or
comes on while driving, it means
the airbag system might not be
working properly. The airbags in
the vehicle might not inflate in a
crash, or they could even inflate
without a crash. To help avoid
injury, have the vehicle serviced
right away.
Passenger Airbag Status
Indicator
The vehicle has a passenger
sensing system. SeePassenger
Sensing System on page 3‑41
for important safety information.
The instrument panel has a
passenger airbag status indicator.
United States
Canada and Mexico When the vehicle is started, the
passenger airbag status indicator
will light ON and OFF, or the symbol
for on and off, for several seconds
as a system check. If you are using
remote start to start the vehicle from
a distance, if equipped, you may not
see the system check. Then, after
several more seconds, the status
indicator will light either ON or OFF,
or either the on or off symbol to let
you know the status of the right front
passenger frontal airbag.
If the word ON or the on symbol is
lit on the passenger airbag status
indicator, it means that the right
front passenger frontal airbag is
enabled (may inflate).
If the word OFF or the off symbol
is lit on the passenger airbag
status indicator, it means that the
passenger sensing system has
turned off the right front passenger
frontal airbag.

Black plate (17,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Instruments and Controls 5-17
If, after several seconds, both status
indicator lights remain on, or if there
are no lights at all, there may be
a problem with the lights or the
passenger sensing system.
See your dealer for service.
{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. SeeAirbag Readiness
Light on page 5‑15 for more
information, including important
safety information.
Charging System Light
The charging system light comes
on briefly when the ignition is turned
on, but the engine is not running, as
a check to show the light is working.
It should go out when the engine is
started.
If the light stays on, or comes
on while driving, there may be a
problem with the electrical charging system. Have it checked by your
dealer. Driving while this light is on
could drain the battery.
When this light comes on, the
Driver Information Center (DIC) also
displays the SERVICE BATTERY
CHARGING SYSTEM message.
See
Vehicle Messages on
page 5‑37 for more information.
If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio
and air conditioner.

Black plate (20,1)GMC Acadia/Acadia Denali Owner Manual - 2011
5-20 Instruments and Controls
Emissions Inspection and
Maintenance Programs
Some state/provincial and
local governments may have
programs to inspect the on-vehicle
emission control equipment.
For the inspection, the emission
system test equipment is connected
to the vehicle’s Data Link
Connector (DLC).
The DLC is under the instrument
panel to the left of the steering
wheel. See your dealer if assistance
is needed.The vehicle may not pass
inspection if:
.The malfunction indicator lamp is
on with the engine running, or if
the light does not come on when
the ignition is turned to ON/RUN
while the engine is off.
.The critical emission control
systems have not been
completely diagnosed by the
system. This can happen if
the battery has recently been
replaced or if the battery has
run down. The diagnostic
system evaluates critical
emission control systems
during normal driving. This can
take several days of routine
driving. If this has been done
and the vehicle still does not
pass the inspection, your dealer
can prepare the vehicle for
inspection.
Brake System Warning
Light
The vehicle brake system
consists of two hydraulic circuits.
If one circuit is not working, the
remaining circuit can still work to
stop the vehicle. For normal braking
performance, both circuits need to
be working.
If the warning light comes on, there
is a brake problem. Have the brake
system inspected right away.
MetricEnglish
This light should come on briefly
when the ignition key is turned to
ON/RUN. If it does not come on
then, have it fixed so it will be ready
to warn if there is a problem.

Black plate (21,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Instruments and Controls 5-21
This light may also come on due
to low brake fluid. SeeBrakes on
page 10‑24 for more information.
When the ignition is on, the brake
system warning light will also come
on when the parking brake is set.
The light will stay on if the parking
brake does not release fully. If it
stays on after the parking brake is
fully released, it means there is a
brake problem.
If the light comes on while driving,
pull off the road and stop carefully.
Make sure the parking brake is fully
released. The pedal may be harder
to push or, the pedal may go closer
to the floor. It may take longer to
stop. If the light is still on, have
the vehicle towed for service. See
Towing the Vehicle on page 10‑87.{WARNING
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
Antilock Brake System
(ABS) Warning Light
The ABS warning light comes on
briefly when the ignition key is
turned to ON/RUN. This is normal.
If the light does not come on then,
have it fixed so it will be ready to
warn you if there is a problem.
If the light stays on, turn the ignition
to LOCK/OFF. If the light comes
on while driving, stop as soon as
possible and turn the ignition off.

Black plate (22,1)GMC Acadia/Acadia Denali Owner Manual - 2011
5-22 Instruments and Controls
Then start the engine again to reset
the system. If the light still stays on,
or comes on again while driving, the
vehicle needs service. If the regular
brake system warning light is not
on, there are still brakes, but no
antilock brakes. If the regular brake
system warning light is also on,
there are no antilock brakes and
there is a problem with the regular
brakes. SeeBrake System Warning
Light on page 5‑20.
Tow/Haul Mode Light
This light comes on when the
Tow/Haul mode has been activated.
For more information, see Tow/Haul
Mode on page 9‑28.
StabiliTrak®Indicator
Light
This light comes on briefly while
starting the engine. If it does not,
have the vehicle serviced by your
dealer. If the system is working
normally the indicator light goes off.
If it stays on, or comes on while
driving, there could be a problem
with the StabiliTrak system and the
vehicle might need service. When
this warning light is on, the system
is off and will not limit wheel spin.
This light flashes when the
StabiliTrak system is active.
See StabiliTrak
®System on
page 9‑31 for more information.
Engine Coolant
Temperature Warning
Light
The engine coolant temperature
warning light comes on briefly when
the engine is started.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally, the
indicator light then goes off.
If the light comes on and stays on
while driving, the vehicle may have
a problem with the cooling system.
Stop the vehicle and turn off the
engine to avoid damage to the
engine. A warning chime sounds
when this light is on.
SeeEngine Overheating on
page 10‑19 for more information.

Black plate (23,1)GMC Acadia/Acadia Denali Owner Manual - 2011
Instruments and Controls 5-23
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the engine
is started. It provides information
about tire pressures and the TPMS.
When the Light is On Steady
This indicates that one or more
of the tires are significantly
underinflated.
A tire pressure message can
accompany the light. SeeTire
Messages on page 5‑44 for more
information. Stop as soon as
possible, and inflate the tires to
the pressure value shown on the
Tire and Loading Information label.
See Tire Pressure on page 10‑45
for more information. When the Light Flashes First and
Then is On Steady
This indicates that there may
be a problem with the TPMS.
The light flashes for about a
minute and stays on steady for
the remainder of the ignition cycle.
This sequence repeats with every
ignition cycle. See
Tire Pressure
Monitor Operation on page 10‑48
for more information.
Engine Oil Pressure Light
{WARNING
Do not keep driving if the oil
pressure is low. The engine can
become so hot that it catches fire.
Someone could be burned. Check
the oil as soon as possible and
have the vehicle serviced. Notice:
Lack of proper engine oil
maintenance can damage the
engine. The repairs would not be
covered by the vehicle warranty.
Always follow the maintenance
schedule for changing engine oil.
The oil pressure light should come
on briefly as the engine is started.
If it does not come on have the
vehicle serviced by your dealer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem.

Black plate (34,1)GMC Acadia/Acadia Denali Owner Manual - 2011
5-34 Instruments and Controls
The following indicator lights come
on the instrument panel when
activated and also appear on
the HUD:
.Turn Signal Indicators
.High-Beam Indicator Symbol
The HUD temporarily displays
CHECK GAGES and ICE
POSSIBLE when these messages
are on the DIC trip computer.
The HUD also displays the following
messages on vehicles with these
systems, when they are active:
.TRACTION CONTROL ACTIVE
.STABILITRAK ACTIVE
Notice: If you try to use the
HUD image as a parking aid, you
may misjudge the distance and
damage your vehicle. Do not use
the HUD image as a parking aid.
When the HUD is on, the
speedometer reading is continually
displayed. The current radio station or CD track number will display
for a short period of time after
the radio or CD track status
changes. This happens whenever
radio information is changed.
The speedometer size is reduced
when radio, CD information,
warnings, or turn-by-turn navigation
information are displayed on
the HUD.
The HUD control is located to the
right of the steering wheel.
To adjust the HUD image so that
items are properly displayed, do the
following:
1. Adjust the driver's seat to a
comfortable position.
2. Start the engine.
3. Adjust the HUD controls.
Use the following settings to adjust
the HUD.
9 (Off): To turn HUD off, rotate the
dimming knob fully counterclockwise
until the HUD display turns off.
Brightness : Turn the knob
on the HUD control clockwise or
counterclockwise to brighten or
dim the display.
w (Up) : x(Down) : Press the up
or down arrows to center the HUD
image in your view. The HUD image
can only be adjusted up and down,
not side to side.

Black plate (38,1)GMC Acadia/Acadia Denali Owner Manual - 2011
5-38 Instruments and Controls
Brake System Messages
SERVICE BRAKE SYSTEM
This message displays along with
the brake system warning light if
there is a problem with the brake
system. SeeBrake System Warning
Light on page 5‑20. If this message
appears, stop as soon as possible
and turn off the vehicle. Restart the
vehicle and check for the message
on the DIC display. If the message
is still displayed or appears again
when you begin driving, the brake
system needs service as soon as
possible. See your dealer.
Cruise Control Messages
CRUISE SET TO XXX
This message displays whenever
the cruise control is set. See Cruise
Control on page 9‑33 for more
information.
Door Ajar Messages
DRIVER DOOR OPEN
This message displays and a
chime sounds if the driver door is
not fully closed and the vehicle is
shifted out of P (Park). Stop and
turn off the vehicle, check the door
for obstructions, and close the door
again. Check to see if the message
still appears on the DIC.
HOOD OPEN
On some models, this message
displays and a chime sounds if the
hood is not fully closed. Stop and
turn off the vehicle, check the hood
for obstructions, and close the hood
again. Check to see if the message
still appears on the DIC.
LEFT REAR DOOR OPEN
This message displays and a chime
sounds if the driver side rear door is
not fully closed and the vehicle is
shifted out of P (Park). Stop and turn
off the vehicle, check the door for
obstructions, and close the door
again. Check to see if the message
still appears on the DIC.
LIFTGATE OPEN
This message displays and a chime
sounds if the liftgate is open while
the ignition is in ON/RUN. Turn off
the vehicle and check the liftgate.
Restart the vehicle and check for
the message on the DIC display.