2008 GMC ACADIA warning light

Brake System Warning Light
Your vehicle’s hydraulic brake system is divided into
two parts. If one part is not working, the other part can
still work and stop you. For good braking, though,
you need both parts working well.
If the warning light comes on, there is a brake problem.
Have your brake system inspected right away.
This light should come on briey when you turn the
ignition key to ON. If it does not come on then, have it
xed so it will be ready to warn you if there is a problem.
This light may also come on due to low brake uid.
SeeBrakes on page 5-35for more information.When the ignition is on, the brake system warning light
will also come on when you set your parking brake.
The light will stay on if your parking brake does
not release fully. If it stays on after your parking brake
is fully released, it means you have a brake problem.
If the light comes on while you are driving, pull off
the road and stop carefully. Make sure the parking brake
is fully released. You may notice that the pedal is
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 4-26.
{CAUTION:
Your brake system may not be working properly
if the brake system warning light is on. Driving
with the brake system warning light on can lead
to an accident. If the light is still on after you
have pulled off the road and stopped carefully,
have the vehicle towed for service. United StatesCanada
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Antilock Brake System
Warning Light
For vehicles with
the Antilock Brake
System (ABS), this
light will come on
briey when you
start the engine.
That is normal. If the light does not come on then, have it
xed so it will be ready to warn you if there is a problem.
If the ABS light stays on, turn the ignition off, if the light
comes on when you are driving, stop as soon as it is
safely possible and turn the ignition off. Then start the
engine again to reset the system. If the ABS light still
stays on, or comes on again while you are driving,
your vehicle needs service. If the regular brake system
warning light is not on, you still have brakes, but you
do not have antilock brakes. If the regular brake system
warning light is also on, you do not have antilock
brakes and there is a problem with your regular brakes.
SeeBrake System Warning Light on page 3-47
For vehicles with a Driver Information Center (DIC),
seeDIC Warnings and Messages on page 3-66for
all brake related DIC messages.
StabiliTrak®Indicator Light
This warning light should
come on briey when
the engine is started.
If the warning light does not come on then, have it
xed so it will be ready to warn you if there is a problem.
If it stays on, or comes on when you are driving,
there may be a problem with your StabiliTrak
®system
and your vehicle may need service. When this warning
light is on, the system is off and will not limit wheel
spin. Adjust your driving accordingly.
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, your vehicle needs service.
SeeStabiliTrak
®System on page 4-6for more
information.
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Engine Coolant Temperature
Warning Light
The engine coolant
temperature warning light
will come on when the
engine has overheated.
If this happens you should pull over and turn off the
engine as soon as possible. SeeEngine Overheating
on page 5-25for more information.
Notice:Driving with the engine coolant temperature
warning light on could cause your vehicle to
overheat. SeeEngine Overheating on page 5-25.
Your vehicle could be damaged, and it might not
be covered by your warranty. Never drive with
the engine coolant temperature warning light on.
This light will also come on briey when starting
your vehicle. If it does not, have your vehicle serviced.
Engine Coolant Temperature Gage
This gage shows the engine coolant temperature.
Under normal driving conditions the gage will read
210°F (100 °C) or less. If the gage pointer is near
260°F (125 °C), the engine is too hot.
It means that your engine coolant has overheated.
If you have been operating your vehicle under normal
driving conditions, you should pull off the road, stop your
vehicle and turn off the engine as soon as possible.
SeeEngine Overheating on page 5-25for more
information.
United StatesCanada
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Tire Pressure Light
Your vehicle has a
tire pressure light.
This light comes on briey when the engine is
started and provides information about tire pressures
and the Tire Pressure Monitoring System.
When the Light is Solid
This indicates that one or more of your tires are
signicantly underinated.
A tire pressure message in the Driver Information
Center (DIC), may accompany the light. SeeDIC
Warnings and Messages on page 3-66for more
information. Stop and check your tires as soon as it
is safe to do so. If underinated, inate to the proper
pressure. SeeTires on page 5-48for more information.
When the Light Flashes First and
Then is Solid
This indicates that there may be a problem with the
Tire Pressure Monitor System. The light will ash for
about a minute and then stay on solid for the remainder
of the ignition cycle. This sequence will repeat with
every ignition cycle. SeeTire Pressure Monitor System
on page 5-57for 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 makes sure that emissions are at acceptable
levels for the life of the vehicle, helping to produce
a cleaner environment.
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DIC Warnings and Messages
Messages are displayed on the DIC to notify the driver
that the status of the vehicle has changed and that
some action may be needed by the driver to correct
the condition. Multiple messages may appear one after
another.
Some messages may not require immediate action,
but you can press any of the DIC buttons on the
instrument panel or the trip odometer reset stem on
the instrument panel cluster to acknowledge that
you received the messages and to clear them from
the display.
Some messages cannot be cleared from the DIC
display because they are more urgent. These messages
require action before they can be cleared. You should
take any messages that appear on the display seriously
and remember that clearing the messages will only
make the messages disappear, not correct the problem.
The following are the possible messages that can be
displayed and some information about them.
ALL WHEEL DRIVE OFF
If your vehicle has the All-Wheel Drive (AWD) system,
this message displays when there is a compact
spare tire on the vehicle, when the Antilock Brake
System (ABS) warning light comes on, or when the
rear differential uid is overheating. This message
turns off when the differential uid cools.
The AWD system is disabled until the compact spare
tire is replaced by a full-size tire. If the warning message
is still on after putting on the full-size tire, you need to
reset the warning message. To reset the warning
message, turn the ignition off and then back on again
after 30 seconds. If the message stays on, see your
dealer/retailer right away. SeeAll-Wheel Drive (AWD)
System on page 4-9for more information.
AUTOMATIC LIGHT CONTROL OFF
This message displays when the automatic
headlamps are turned off. This message clears
itself after 10 seconds.
AUTOMATIC LIGHT CONTROL ON
This message displays when the automatic
headlamps are turned on. This message clears
itself after 10 seconds.
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BATTERY SAVER ACTIVE
This message displays when the system detects
that the battery voltage is dropping below expected
levels. The battery saver system starts reducing
certain features of the vehicle that you may be able
to notice. At the point that the features are disabled,
this message is displayed. It means that the vehicle
is trying to save the charge in the battery.
Turn off all unnecessary accessories to allow the
battery to recharge.
The normal battery voltage range is 11.5 to 15.5 volts.
CHANGE ENGINE OIL SOON
This message displays when the engine oil needs to
be changed. When you change the engine oil, be sure
to reset the CHANGE ENGINE OIL SOON message.
SeeEngine Oil Life System on page 5-18for information
on how to reset the message. SeeEngine Oil on
page 5-15andScheduled Maintenance on page 6-4
for more information.
CHECK TIRE PRESSURE
This message displays when the pressure in one or
more of the vehicle’s tires needs to be checked.
This message also displays LEFT FRONT, RIGHT
FRONT, LEFT REAR, or RIGHT REAR to indicate
which tire needs to be checked. You can receive more
than one tire pressure message at a time. To read
the other messages that may have been sent at
the same time, press the set/reset button or the trip
odometer reset stem. If a tire pressure message
appears on the DIC, stop as soon as you can. Have
the tire pressures checked and set to those shown
on the Tire Loading Information label. SeeTires
on page 5-48,Loading Your Vehicle on page 4-21,
andInflation - Tire Pressure on page 5-55. The DIC
also shows the tire pressure values. See “DIC Operation
and Displays (With DIC Buttons)” earlier in this section.
If the tire pressure is low, the low tire pressure
warning light comes on. SeeTire Pressure Light
on page 3-50.
CRUISE SET TO XXX
This message displays whenever the cruise control
is set. SeeCruise Control on page 3-12for more
information.
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SERVICE AIR BAG
This message displays if there is a problem with the
airbag system. Have your dealer/retailer inspect
the system for problems. SeeAirbag Readiness Light
on page 3-42andAirbag System on page 1-61for
more information.
SERVICE ALL WHEEL DRIVE
If your vehicle has the All-Wheel Drive (AWD) system,
this message displays if there is a problem with this
system. If this message appears, stop as soon as
possible and turn off the vehicle. Restart the vehicle
after 30 seconds and check for the message on the
DIC display. If the message is still displayed or appears
again when you begin driving, the AWD system
needs service. See your dealer/retailer.
SERVICE BATTERY CHARGING
SYSTEM
On some vehicles, this message displays if there is a
problem with the battery charging system. Under certain
conditions, the charging system light may also turn
on in the instrument panel cluster. SeeCharging System
Light on page 3-45. Driving with this problem could
drain the battery. Turn off all unnecessary accessories.
Have the electrical system checked as soon as
possible. See your dealer/retailer.
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 3-47. 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/retailer.
SERVICE PARK ASSIST
If your vehicle has the Ultrasonic Rear Parking Assist
(URPA) system, this message displays if there is a
problem with the URPA system. Do not use this
system to help you park. SeeUltrasonic Rear Parking
Assist (URPA) on page 2-45for more information.
See your dealer/retailer for service.
SERVICE POWER STEERING
This message displays when a problem is detected
with the power steering system. When this message
is displayed, you may notice that the effort required to
steer the vehicle increases or feels heavier, but you
will still be able to steer the vehicle. Have your vehicle
serviced by your dealer/retailer immediately.
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SERVICE STABILITRAK
This message displays if there is a problem with the
StabiliTrak®system. If this message appears, try to
reset the system. Stop; turn off the engine for at least
15 seconds; then start the engine again. If this message
still comes on, it means there is a problem. See your
dealer/retailer for service. The vehicle is safe to drive,
however, you do not have the benet of StabiliTrak
®,
so reduce your speed and drive accordingly.
SERVICE THEFT DETERRENT SYSTEM
This message displays when there is a problem with
the theft-deterrent system. The vehicle may or may
not restart so you may want to take the vehicle to
your dealer/retailer before turning off the engine.
SeePASS-Key
®III+ Operation on page 2-23for
more information.
SERVICE TIRE MONITOR SYSTEM
This message displays if a part on the Tire Pressure
Monitor System (TPMS) is not working properly.
The tire pressure light also ashes and then remains
on during the same ignition cycle. SeeTire Pressure
Light on page 3-50. Several conditions may cause
this message to appear. SeeTire Pressure Monitor
Operation on page 5-58for more information.
If the warning comes on and stays on, there may be
a problem with the TPMS. See your dealer/retailer.
SERVICE TRACTION CONTROL
This message displays when there is a problem with
the Traction Control System (TCS). When this message
is displayed, the system will not limit wheel spin.
Adjust your driving accordingly. See your dealer/retailer
for service. SeeStabiliTrak
®System on page 4-6for
more information.
SERVICE TRANSMISSION
This message displays when there is a problem with
the transmission. See your dealer/retailer for service.
SERVICE VEHICLE SOON
This message displays when a non-emissions related
malfunction occurs. Have the vehicle serviced by
your dealer/retailer as soon as possible.
SPEED LIMITED TO XXX MPH (KM/H)
This message displays when your vehicle speed is
limited to 80 mph (128 km/h) because the vehicle
detects a problem in the speed variable assist
steering system. Have your vehicle serviced by
your dealer/retailer.
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