2009 GMC ACADIA engine

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 oor. It may take
longer to stop. If the light is still on,
have the vehicle towed for service.
SeeTowing Your Vehicle on
page 4-20.
{CAUTION
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
For vehicles with the Antilock Brake
System (ABS), this light comes
on briey when the engine is started.
That is normal. If the light does
not come on then, have it xed so it
will be ready to warn if there is a
problem.
If the ABS light stays on, turn the
ignition off. If the light comes
on while driving, stop as soon as it
is safely possible and turn the
ignition off. A chime may also sound
when the light comes on steady.
Then start the engine again to reset
the system. If the ABS light stays
on, or comes on again while driving,
the vehicle needs service. If the
regular brake system warning light
is not on, the vehicle still has
brakes, but not antilock brakes.If the regular brake system warning
light is also on, the vehicle does
not have antilock brakes and there
is a problem with the regular
brakes. SeeBrake System Warning
Light on page 3-38.
For vehicles with a Driver Information
Center (DIC), seeDIC Warnings and
Messages on page 3-56for all brake
related DIC messages.
StabiliTrak®Indicator
Light
This light comes on briey while
starting the engine. If it does
not, have the vehicle serviced by
your dealer/retailer. If the system is
working normally the indicator light
will then go off.
If it stays on, or comes on while
driving, there may be a problem with
the StabiliTrak system and the
Instrument Panel 3-39

vehicle may need service. When
this warning light is on, the system is
off and will not limit wheel spin.
This light will also ash when the
StabiliTrak system is active.
If the StabiliTrak system warning light
comes on and stays on for an
extended period of time when the
system is turned on, the vehicle
needs service. SeeStabiliTrak
®
System on page 4-5for more
information.
Engine Coolant
Temperature Warning
Light
The engine coolant temperature
warning light will come on when the
engine has overheated.If this happens pull over and turn off
the engine as soon as possible.
SeeEngine Overheating on
page 5-21for more information.
Notice:Driving with the engine
coolant temperature warning light
on could cause the vehicle to
overheat. SeeEngine Overheating
on page 5-21. The vehicle’s
engine could be damaged, and it
might not be covered by the
vehicle warranty. Never drive with
the engine coolant temperature
warning light on.
This light will also come on briey
when starting the vehicle. If it
does not, see your delear/retailer.
Engine Coolant
Temperature Gage
This gage shows the engine coolant
temperature. Under normal driving
conditions the gage will read
approximately 210°F (100 °C) or
less. If the gage pointer is near
260°F (125 °C), the engine is
too hot.
It means that the engine coolant
has overheated. If the vehicle
has been operating under normal
driving conditions, pull off the
road, stop the vehicle and turn off
the engine as soon as possible.
SeeEngine Overheating on
page 5-21for more information.
United StatesCanada
3-40 Instrument Panel

Tire Pressure Light
The tire pressure light should come
on briey as the engine is started.
If it does not, have the vehicle
service by your dealer/retailer.
It provides information about tire
pressures and the Tire Pressure
Monitoring System.
When the Light is On Steady
This indicates that one or more
of the tires are signicantly
underinated.
A tire pressure message in the
Driver Information Center (DIC),
may accompany the light.SeeDIC Warnings and Messages
on page 3-56for more information.
Stop and check the tires as
soon as it is safe to do so.
If underinated, inate to the
proper pressure. SeeTires on
page 5-35for more information.
When the Light Flashes First and
Then is On Steady
This indicates that there may be a
problem with the Tire Pressure
Monitor System. The light ashes
for about a minute and stays
on steady for the remainder of the
ignition cycle. This sequence
will repeat with every ignition cycle.
SeeTire Pressure Monitor System
on page 5-42for more information.
Malfunction
Indicator Lamp
Check Engine Light
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors operation of
the fuel, ignition, and emission
control systems. It ensures that
emissions are at acceptable levels
for the life of the vehicle, helping to
produce a cleaner environment.
This light comes on when the ignition
is on, but the engine is not running,
as a check to show it is working. If it
does not, have the vehicle serviced
by your dealer/retailer.
If the check engine light comes
on and stays on, while the engine is
running, this indicates that there
is an OBD II problem and service is
required.
Instrument Panel 3-41

Malfunctions often are indicated by
the system before any problem is
apparent. Being aware of the light
can prevent more serious damage to
the vehicle. This system assists the
service technician in correctly
diagnosing any malfunction.
Notice:If the vehicle is
continually driven with this light
on, after a while, the emission
controls might not work as well,
the vehicle’s fuel economy might
not be as good, and the engine
might not run as smoothly.
This could lead to costly repairs
that might not be covered by the
vehicle warranty.
Notice:Modications made to
the engine, transmission, exhaust,
intake, or fuel system of the
vehicle or the replacement of the
original tires with other than those
of the same Tire Performance
Criteria (TPC) can affect the
vehicle’s emission controls and
can cause this light to come on.
Modications to these systemscould lead to costly repairs not
covered by the vehicle warranty.
This could also result in a failure
to pass a required Emission
Inspection/Maintenance test.
SeeAccessories and
Modifications on page 5-3.
This light comes on during a
malfunction in one of two ways:
Light Flashing:A misre condition
has been detected. A misre
increases vehicle emissions and
could damage the emission control
system on the vehicle. Diagnosis
and service might be required.
The following can prevent more
serious damage to the vehicle:
Reduce vehicle speed.
Avoid hard accelerations.
Avoid steep uphill grades.
If towing a trailer, reduce the
amount of cargo being hauled
as soon as it is possible.If the light continues to ash,
when it is safe to do so, stop the
vehicle. Find a safe place to
park the vehicle. Turn the key off,
wait at least 10 seconds, and restart
the engine. If the light is still
ashing, follow the previous steps
and see your dealer/retailer for
service as soon as possible.
Light On Steady:An emission
control system malfunction has been
detected on the vehicle. Diagnosis
and service might be required.
An emission system malfunction
might be corrected by:
Make sure the fuel cap is fully
installed. SeeFilling the Tank
on page 5-7. The diagnostic
system can determine if the
fuel cap has been left off or
improperly installed. A loose or
missing fuel cap allows fuel
to evaporate into the atmosphere.
A few driving trips with the cap
properly installed should turn
the light off.
3-42 Instrument Panel

If the vehicle has been driven
through a deep puddle of water,
the vehicle’s electrical system
might be wet. The condition is
usually corrected when the
electrical system dries out.
A few driving trips should turn
the light off.
Make sure to fuel the vehicle with
quality fuel. Poor fuel quality
causes the engine not to run as
efficiently as designed and may
cause: stalling after start-up,
stalling when the vehicle is
changed into gear, misring,
hesitation on acceleration, or
stumbling on acceleration.
These conditions might go away
once the engine is warmed up.
If one or more of these conditions
occurs, change the fuel brand
used. It will require at least one
full tank of the proper fuel to turn
the light off.
SeeGasoline Octane on
page 5-5.If none of the above have made the
light turn off, your dealer/retailer can
check the vehicle. The dealer/retailer
has the proper test equipment and
diagnostic tools to x any mechanical
or electrical problems that might
have developed.Emissions Inspection and
Maintenance Programs
Some state/provincial and local
governments have or might begin
programs to inspect the emission
control equipment on the vehicle.
Failure to pass this inspection
could prevent getting a vehicle
registration.
Here are some things to know to
help the vehicle pass an inspection:
The vehicle will not pass this
inspection if the check engine
light is on with the engine
running, or if the key is in
ON/RUN and the light is not on.
The vehicle will not pass this
inspection if the OBD II
(on-board diagnostic) system
determines that critical emission
control systems have not
been completely diagnosed by
the system. The vehicle would
be considered not ready for
inspection. This can happen if
the battery has recently been
replaced or if the battery has run
down. The diagnostic system
is designed to evaluate 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 for lack of
OBD II system readiness,
your dealer/retailer can prepare
the vehicle for inspection.
Instrument Panel 3-43

Oil Pressure Light
{CAUTION
Do not keep driving if the oil
pressure is low. The engine can
become so hot that it catches re.
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 in this manual for
changing engine oil.The oil pressure light should come
on briey as the engine is started.
If it does not come on have the
vehicle serviced by your
dealer/retailer.
If the light comes on and stays on, it
means that oil is not owing through
the engine properly. The vehicle
could be low on oil and might have
some other system problem.
Security Light
This light ashes when the security
system is activated.
For more information, see
Theft-Deterrent Systems on
page 2-16.
Fog Lamp Light
The fog lamp light comes on when
the fog lamps are in use.
The light goes out when the fog
lamps are turned off. SeeFog
Lamps on page 3-13for more
information.
Cruise Control Light
This light comes on whenever the
cruise control is set.
The light goes out when the cruise
control is turned off. SeeCruise
Control on page 3-9for more
information.
3-44 Instrument Panel

Driver Information
Center (DIC)
Your vehicle has a Driver
Information Center (DIC).
The DIC displays information about
your vehicle. It also displays
warning messages if a system
problem is detected.
All messages will appear in the DIC
display located at the top of the
instrument panel cluster.
The DIC comes on when the
ignition is on. After a short delay,
the DIC will display the information
that was last displayed before
the engine was turned off.
The DIC also displays a shift lever
position indicator on the bottom
line of the display. SeeAutomatic
Transmission Operation on
page 2-24for more information.
The outside air temperature
and compass, if equipped, also
displays on the DIC when viewing
the trip and fuel information.The outside air temperature
automatically appears in the top
right corner of the DIC display.
If there is a problem with the system
that controls the temperature
display, the numbers will be
replaced with dashes. If this occurs,
have the vehicle serviced. The
compass will be shown in the bottom
right corner of the DIC display.
SeeDIC Compass on page 3-54for
more information.
If your vehicle has DIC buttons,
see “DIC Operation and Displays
(With DIC Buttons)” later in this
section andDIC Vehicle
Customization (With DIC Buttons)
on page 3-64for the displays
available.
If your vehicle does not have
DIC buttons, see “DIC Operation
and Displays (Without DIC Buttons)”
later in this section for the displays
available.
DIC Operation and
Displays (With DIC
Buttons)
If your vehicle has DIC buttons, the
information below explains the
operation of this system.
The DIC has different displays
which can be accessed by pressing
the DIC buttons located on the
instrument panel. SeeInstrument
Panel Overview on page 3-4
for more information.
The DIC displays trip, fuel, and
vehicle system information, and
warning messages if a system
problem is detected.
The DIC also allows some features
to be customized. SeeDIC
Vehicle Customization (With DIC
Buttons) on page 3-64for more
information.
If your vehicle has DIC buttons,
you can also use the trip odometer
reset stem to view the odometer
and trip odometers.
3-46 Instrument Panel

DIC Buttons
The buttons are the set/reset,
customization, vehicle information,
and trip/fuel buttons. The button
functions are detailed in the
following pages.
V(Set/Reset):Press this button to
set or reset certain functions and
to turn off or acknowledge
messages on the DIC.
U(Customization):Press this
button to customize the feature
settings on your vehicle. SeeDIC
Vehicle Customization (With DIC
Buttons) on page 3-64for more
information.
T(Vehicle Information):Press
this button to display the oil life,
park assist on vehicles with
this feature, units, tire pressurereadings on vehicles with the Tire
Pressure Monitor System (TPMS),
Remote Keyless Entry (RKE)
transmitter programming, and
compass calibration and zone
setting on vehicles with this feature.
3(Trip/Fuel):Press this button
to display the odometer, trip
odometers, fuel range, average
economy, timer, fuel used, and
average speed.
Vehicle Information Menu
Items
T(Vehicle Information):Press
this button to scroll through the
following menu items:
OIL LIFE
Press the vehicle information button
until OIL LIFE REMAINING displays.
This display shows an estimate of
the oil’s remaining useful life. If you
see 99% OIL LIFE REMAINING on
the display, that means 99% of the
current oil life remains. The engineoil life system will alert you to change
the oil on a schedule consistent with
your driving conditions.
When the remaining oil life is low,
the CHANGE ENGINE OIL SOON
message will appear on the display.
See “CHANGE ENGINE OIL SOON”
underDIC Warnings and Messages
on page 3-56. You should change
the oil as soon as you can.
SeeEngine Oil on page 5-11.
In addition to the engine oil life
system monitoring the oil life,
additional maintenance is
recommended in the Maintenance
Schedule in this manual.
SeeScheduled Maintenance on
page 6-3for more information.
Remember, you must reset the OIL
LIFE display yourself after each
oil change. It will not reset
itself. Also, be careful not to reset
the OIL LIFE display accidentally at
any time other than when the oil
has just been changed. It cannot
be reset accurately until the next
Instrument Panel 3-47