warning GMC ACADIA 2007 Owner's Guide

Warning Lights, Gages,
and Indicators
This part describes the warning lights and
gages on your vehicle. The pictures help to
locate them.
Warning lights and gages can signal that
something is wrong before it becomes serious
enough to cause an expensive repair or
replacement. Paying attention to the warning
lights and gages could also save you or others
from injury.
Warning lights come on when there may be or
is a problem with one of your vehicle’s functions.
As the details show on the next few pages,
some warning lights come on briey when you
start the engine just to let you know they are
working. If you are familiar with this section, you
should not be alarmed when this happens.Gages can indicate when there may be or is a
problem with one of your vehicle’s functions.
Often gages and warning lights work together
to let you know when there is a problem with
your vehicle.
When one of the warning lights comes on and
stays on as you are driving, or when one of
the gages shows there may be a problem, check
the section that tells you what to do about it.
Please follow this manual’s advice. Waiting to
do repairs can be costly and even dangerous.
So please get to know your vehicle’s warning
lights and gages. They can be a big help.
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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/retailer for service.
{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 217for more on this, including
important safety information.
Charging System Light
The charging system
light will come on briey
when you turn on the
ignition, but the engine is
not running, as a check
to show you it is working.
It should go out once the engine is running. If it
stays on, or comes on while you are driving, you
may have a problem with the charging system.
It could indicate that you have problems with a
generator drive belt, or another electrical problem.
Have it checked right away. Driving while this light
is on could drain your battery.
When this light comes on, the Driver Information
Center (DIC) will also display the SERVICE
BATTERY CHARGING SYSTEM message. See
DIC Warnings and Messages on page 244for more
information.
If you must drive a short distance with the light on,
be certain to turn off all your accessories, such as
the radio and air conditioner.
220

Voltmeter Gage
When the engine is
not running, but the
ignition is turned to ON,
this gage shows the
battery’s state of charge
in DC volts.
When the engine is running, this gage shows the
condition of the charging system. The vehicle’s
charging system regulates voltage based on
the state of charge of the battery. The voltmeter
may uctuate. This is normal. Readings between
the low and high warning zones indicate the
normal operating range.Readings in the low warning zone may occur
when a large number of electrical accessories
are operating in the vehicle and the engine is
left idling for an extended period.
If there is a problem with the battery charging
system, a SERVICE BATTERY CHARGING
SYSTEM message will appear in the Driver
Information Center (DIC) and/or the charging
system light will come on. SeeDIC Warnings and
Messages on page 244andCharging System
Light on page 220for more information.
However, readings in either warning zone may
indicate a possible problem in the electrical
system. Have the vehicle serviced as soon
as possible.
221

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 421for 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 367.
{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
222

Anti-Lock Brake System
Warning Light
Your vehicle has the Anti-Lock Brake System (ABS).
This light will come on
when your engine is
started and may stay
on for several seconds.
This is normal.
If the light stays on, turn the ignition to off.
If the light comes on and the chime sounds
when you are driving, pull your vehicle over to a
safe location and stop as soon as possible.Turn the ignition off. Then start the engine again
to reset the system. If the 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 anti-lock brakes.
If the regular brake system warning light is also
on, you do not have anti-lock brakes and there
is a problem with your regular brakes. SeeBrake
System Warning Light on page 222earlier in
this section.
The ABS warning light will come on briey when
you turn the ignition key to ON. This 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.
223

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 337for more information.
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 410for more information.
Notice:Driving with the engine coolant
temperature warning light on could cause your
vehicle to overheat. SeeEngine Overheating
on page 410. 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.
224

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 410for more
information.
Tire Pressure Light
This light comes on
briey when you turn
the ignition to ON.
It will also come on when one or more of your
tires are signicantly underinated.
A CHECK TIRE PRESSURE Driver Information
Center (DIC) message will accompany the light.
SeeDIC Warnings and Messages on page 244
for 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 435for more information.
This light will ash for about 70 seconds and then
stay on if a problem is detected with the Tire
Pressure Monitor system.
SeeTire Pressure Monitor System on page 444
for more information.
United StatesCanada
225

Fuel Gage
When the ignition is on, the fuel gage tells you
about how much fuel you have left in your tank.
The gage will rst indicate empty before you
are out of fuel, and you should get more fuel as
soon as possible.When the fuel tank is low on fuel, the FUEL
LEVEL LOW message will appear on the
Driver Information Center (DIC). For more
information seeDIC Warnings and Messages
on page 244.
Here are some situations you may experience with
your fuel gage. None of these indicate a problem
with the fuel gage.
At the gas station, the fuel pump shuts off
before the gage reads full.
It takes a little more or less fuel to ll up than
the fuel gage indicated. For example, the
gage may have indicated the tank was half full,
but it actually took a little more or less than
half the tank’s capacity to ll the tank.
The gage goes back to empty when you turn
off the ignition.
United StatesCanada
231

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. See
Automatic Transmission Operation on page 129
for more information.The outside air temperature 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.
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 255for 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.
232

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 170for 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 255for more
information.
If your vehicle has DIC buttons, you can also
use the trip odometer reset stem to view the
odometer and trip odometers.
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 255for more information.
233