check engine GMC ACADIA 2009 Owner's Manual

The rear window defogger and
heated mirrors, if the vehicle has
them, turn on during colder outside
temperatures and turn off when
the key is turned to ON/RUN.
Laws in some communities may
restrict the use of remote starters.
For example, some laws may
require a person using the remote
start to have the vehicle in view
when doing so. Check local
regulations for any requirements on
remote starting of vehicles.
Do not use the remote start feature
if the vehicle is low on fuel. The
vehicle could run out of fuel.
If the vehicle has the remote start
feature, the RKE transmitter
functions have an increased range
of operation. However, the range
may be less while the vehicle
is running.There are other conditions which
can affect the performance of
the transmitter, seeRemote Keyless
Entry (RKE) System on page 2-3
for additional information.
/(Remote Start):This button is
located on the RKE transmitter
if the vehicle has remote start.
To start the vehicle:
1. Aim the transmitter at the
vehicle.
2. Press and release
Q, then
immediately press and hold
/
until the parking lamps ash. If the
vehicle’s lights can not be seen,
press and hold
/for at least
four seconds. The vehicle’s doors
lock. When the vehicle starts, the
parking lamps turn on and remain
on while the vehicle is running.
Pressing
/again, after the
vehicle has started, shuts the
vehicle off.3. If it is the rst remote start since
the vehicle has been driven,
repeat these steps while the
engine is still running, to extend
the time by 10 minutes for the
engine to continue to run. Remote
start can be extended one time.
After entering the vehicle during a
remote start, insert and turn the key
to the ON/RUN position to drive
the vehicle.
If the vehicle is left running it
automatically shuts off after
10 minutes unless a time extension
has been done.
To manually shut off a remote start:
Aim the RKE transmitter at the
vehicle and press
/until the
parking lamps turn off.
Turn on the hazard warning
ashers.
Turn the ignition switch on and
then off.
2-6 Features and Controls

Power Liftgate
Power Liftgate Operation
{CAUTION
Exhaust gases may enter the
vehicle if it is driven with the
liftgate, trunk/hatch open, or with
any objects that pass through the
seal between the body and the
trunk/hatch or liftgate. Engine
exhaust contains Carbon
Monoxide (CO) which cannot be
seen or smelled. It can cause
unconsciousness and even death.
If the vehicle must be driven with
the liftgate, or trunk/hatch open:
Close all of the windows.
Fully open the air outlets on
or under the instrument
panel.
(Continued)
CAUTION (Continued)
Adjust the Climate Control
system to a setting that
brings in only outside air and
set the fan speed to the
highest setting. See Climate
Control System in the Index.
If the vehicle is equipped with
a power liftgate, disable the
power liftgate function.
For more information about
carbon monoxide, seeEngine
Exhaust on page 2-30.
The vehicle may have a power
liftgate. The vehicle must be
in P (Park) to use the power feature.
The taillamps will ash and a
chime will sound when the power
liftgate is used.
{CAUTION
You or others could be injured if
caught in the path of the power
liftgate. Make sure there is no one
in the way of the liftgate as it is
opening and closing.
Notice:If you open the liftgate
without checking for overhead
obstructions such as a garage
door, you could damage the
liftgate or the liftgate glass.
Always check to make sure the
area above and behind the liftgate
is clear before opening it.
The power liftgate can be
power opened and closed in the
following ways:
Press and hold the power liftgate
button on the Remote Keyless
Entry (RKE) transmitter until
the liftgate starts moving.Remote
Keyless Entry (RKE) System
Operation on page 2-3for more
information.
Features and Controls 2-11

This device complies with RSS-210
of Industry Canada. Operation
is subject to the following
two conditions:
1. This device may not cause
interference.
2. This device must accept any
interference received, including
interference that may cause
undesired operation of the device.
Changes or modications to this
system by other than an authorized
service facility could void
authorization to use this equipment.
PASS-Key III+ uses a radio
frequency transponder in the
key that matches a decoder in
the vehicle.PASS-Key®III+ Electronic
Immobilizer Operation
This vehicle has PASS-Key®III+
(Personalized Automotive Security
System) theft-deterrent system.
PASS-Key
®III+ is a passive
theft-deterrent system.
The system is automatically armed
when the key is removed from
the ignition.
The system is automatically
disarmed when the key is turned to
ON/RUN, ACC/ACCESSORY or
START from the LOCK/OFF
position.
You do not have to manually arm or
disarm the system.
The security light comes on if there
is a problem with arming or
disarming the theft-deterrent system.
When the PASS-Key
®III+ system
senses an incorrect key, the vehicle
does not start. Anyone using a
trial-and-error method to start thevehicle will be discouraged because
of the high number of electrical
key codes.
If the engine does not start and the
security light on the instrument panel
comes on when trying to start the
vehicle, there may be a problem with
your theft-deterrent system. Turn the
ignition off and try again.
If the engine still does not start, and
the key appears to be undamaged,
try another ignition key and check the
fuses. SeeFuses and Circuit
Breakers on page 5-90for additional
information. If the engine still does
not start with the other key, the
vehicle needs service. If the vehicle
does start, the rst key may be faulty.
See your dealer/retailer who can
service the PASS-Key
®III+ to have a
new key made. In an emergency,
contact Roadside Assistance. See
Roadside Assistance Program on
page 7-6.
2-18 Features and Controls

Notice:The engine is designed
to work with the electronics
in the vehicle. If you add electrical
parts or accessories, you could
change the way the engine
operates. Before adding electrical
equipment, check with your
dealer/retailer. If you do not, the
engine might not perform
properly. Any resulting damage
would not be covered by the
vehicle warranty.Engine Coolant Heater
The engine coolant heater can
provide easier starting and better
fuel economy during engine
warm-up in cold weather conditions
at or below 0°F (−18°C). Vehicles
with an engine coolant heater should
be plugged in at least four hours
before starting. Some models
may have an internal thermostat in
the cord which will prevent
engine coolant heater operation at
temperatures above 0°F (−18°C).
To Use the Engine Coolant
Heater
1. Turn off the engine.
2. Open the hood and unwrap the
electrical cord. The cord is
located on the driver side of the
engine compartment. It is
routed around the windshield
washer uid reservoir.
3. Plug the cord into a normal,
grounded 110-volt AC outlet.
{CAUTION
Plugging the cord into an
ungrounded outlet could cause an
electrical shock. Also, the wrong
kind of extension cord could
overheat and cause a re. You
could be seriously injured. Plug
the cord into a properly grounded
three-prong 110-volt AC outlet. If
the cord will not reach, use a
heavy-duty three-prong extension
cord rated for at least 15 amps.
4. Before starting the engine, be
sure to unplug and store the
cord as it was before to keep it
away from moving engine
parts. If you do not, it could be
damaged.
The length of time the heater should
remain plugged in depends on
several factors. Ask a dealer/retailer
in the area where you will be
parking the vehicle for the best
advice on this.
Features and Controls 2-23

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 sizeis 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.
?(Page):Press this button to
select the display formats. Release
the page button when the format
number with the desired display is
shown on the HUD.
3-18 Instrument Panel

H(Vent):Air is directed through
the overhead outlets.
)(Bi-Level):Air is directed
through the rear oor outlets, as
well as the overhead outlets.
6(Floor):Air is directed through
the oor outlets. The rear system
oor outlets are located under
the third row seats.
Warning Lights,
Gages, and Indicators
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
prevent injury.
Warning lights come on when there
may be or is a problem with one
of the vehicle’s functions. Some
warning lights come on briey when
the engine is started to indicate
they are working.Gages can indicate when there may
be or is a problem with one of the
vehicle’s functions. Often gages and
warning lights work together to
indicate a problem with the vehicle.
When one of the warning lights
comes on and stays on while
driving, or when one of the gages
shows there may be a problem,
check the section that explains what
to do. Follow this manual’s advice.
Waiting to do repairs can be
costly and even dangerous.
Instrument Panel 3-33

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 inate).
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.
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 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 3-36for more information,
including important safety
information.
Charging System Light
The charging system light comes on
briey 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/retailer. Driving while this light
is on could drain the battery.
When this light comes on, the Driver
Information Center (DIC) will also
display the SERVICE BATTERY
CHARGING SYSTEM message.
SeeDIC Warnings and Messages
on page 3-56for 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.
Instrument Panel 3-37

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

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