light CHEVROLET ASTRO 2004 Owner's Guide

Engine Coolant Temperature Gage
This gage shows the
engine coolant
temperature. If the gage
pointer moves to the
red area, your 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.
See
Engine Overheating on page 5-27.
Malfunction Indicator Lamp
Service Engine Soon Light in the
United States or Check Engine Light in
Canada
Your vehicle is equipped with a computer which
monitors operation of the fuel, ignition and emission
control systems.
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This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for the
life of the vehicle, helping to produce a cleaner
environment. The SERVICE ENGINE SOON or CHECK
ENGINE light comes on and a chime will sound to
indicate that there is a problem and service is required.
Malfunctions often will be indicated by the system
before any problem is apparent. This may prevent more
serious damage to your vehicle. This system is also
designed to assist your service technician in correctly
diagnosing any malfunction.
Notice:If you keep driving your vehicle with this
light on, after a while, your emission controls
may not work as well, your fuel economy may not
be as good and your engine may not run as
smoothly. This could lead to costly repairs that may
not be covered by your warranty.
Notice:Modi®cations made to the engine,
transmission, exhaust, intake or fuel system of your
vehicle or the replacement of the original tires
with other than those of the same Tire Performance
Criteria (TPC) can affect your vehicle's emission
controls and may cause this light to come on.
Modi®cations to these systems could lead to costly
repairs not covered by your warranty. This may
also result in a failure to pass a required Emission
Inspection/Maintenance test.
This light should come on, as a check to show you it is
working, when the ignition is on and the engine is
not running. If the light does not come on, have it
repaired. This light will also come on during a
malfunction in one of two ways:
·Light FlashingÐ A mis®re condition has been
detected. A mis®re increases vehicle emissions
and may damage the emission control system on
your vehicle. Diagnosis and service may be
required.
·Light On SteadyÐ An emission control system
malfunction has been detected on your vehicle.
Diagnosis and service may be required.
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If the Light Is Flashing
The following may prevent more serious damage to
your vehicle:
·Reducing vehicle speed.
·Avoiding hard accelerations.
·Avoiding steep uphill grades.
·If you are towing a trailer, reduce the amount of
cargo being hauled as soon as it is possible.
If the light stops ¯ashing and remains on steady, see ªIf
the Light Is On Steadyº following.
If the light continues to ¯ash, when it is safe to do so,
stop the vehicle.Find a safe place to park your vehicle.
Turn the key off, wait at least 10 seconds and restart
the engine. If the light remains on steady, see ªIf
the Light Is On Steadyº following. If the light is still
¯ashing, follow the previous steps, and see your dealer
for service as soon as possible.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If so, reinstall the fuel cap, making sure to fully install
the cap. See
Filling Your Tank on page 5-6. The
diagnostic system can determine if the fuel cap has
been left off or improperly installed. A loose or missing
fuel cap will allow fuel to evaporate into the atmosphere.
A few driving trips with the cap properly installed
should turn the light off.
Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should turn the light off.
Have you recently changed brands of fuel?
If so, be sure to fuel your vehicle with quality fuel. See
Gasoline Octane on page 5-4. Poor fuel quality will
cause your engine not to run as efficiently as designed.
You may notice this as stalling after start-up, stalling
when you put the vehicle into gear, mis®ring, hesitation
on acceleration or stumbling on acceleration. (These
conditions may go away once the engine is warmed up.)
This will be detected by the system and cause the
light to turn on.
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If you experience one or more of these conditions,
change the fuel brand you use. It will require at least
one full tank of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
your dealer can check the vehicle. Your dealer has
the proper test equipment and diagnostic tools to ®x any
mechanical or electrical problems that may have
developed.
Emissions Inspection and Maintenance
Programs
Some state/provincial and local governments have or
may begin programs to inspect the emission control
equipment on your vehicle. Failure to pass this
inspection could prevent you from getting a vehicle
registration.Here are some things you need to know to help your
vehicle pass an inspection:
Your vehicle will not pass this inspection if the SERVICE
ENGINE SOON or CHECK ENGINE light is on or not
working properly.
Your vehicle will not pass this inspection if the OBD
(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
you have recently replaced your battery or if your
battery has run down. The diagnostic system is
designed to evaluate critical emission control systems
during normal driving. This may take several days
of routine driving. If you have done this and your vehicle
still does not pass the inspection for lack of OBD
system readiness, your GM dealer can prepare the
vehicle for inspection.
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Security Light
This light will come on
brie¯y when you turn the
ignition key to START.
The light will stay on until the engine starts. If the light
¯ashes, the Passlock
žSystem has entered a tamper
mode. If the vehicle fails to start, seePasslockž
on page 2-16.
If the light comes on continuously while driving and
stays on, there may be a problem with the Passlock
ž
System. Your vehicle will not be protected by Passlockž,
and you should see your GM dealer.
Service All-Wheel Drive Light
This light should come on
brie¯y when you turn on
the ignition, as a check to
show you it is working.
The SERVICE AWD light comes on to indicate that
there may be a problem with the drive system and
service is required. Malfunctions can be indicated by the
system before any problem is apparent, which may
prevent serious damage to the vehicle. This system is
also designed to assist your service technician in
correctly diagnosing a malfunction.
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Tow/Haul Mode Light
This light should come on
when the tow/haul mode
has been selected.
For more information, see ªTow/Haul Modeº in
Towing a
Trailer on page 4-35.
Check Gages Warning Light
The CHECK GAGES light
will come on brie¯y when
you are starting the
engine.
If the light comes on and stays on while you are driving,
check your coolant temperature and engine oil
pressure gages to see if they are in the warning zones.
Fuel Gage
The fuel gage tells you approximately how much fuel
you have remaining when the ignition is on.
When the gage ®rst indicates empty, you still have a
little fuel left, but you should get more fuel as soon
as possible.
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Here are things some owners ask about. None of these
indicate a problem with your fuel gage:
·At the gas station, the gas pump shuts off before
the gage reads full.
·The fuel tank will take either a little more or a little
less fuel to ®ll up than the gage shows.
·The gage moves a little when you turn a corner or
speed up.
·The gage doesn't go back to empty when you turn
off the ignition.
Low Fuel Warning Light
The LOW FUEL light will
come on brie¯y when you
are starting the engine.
This light comes on when the fuel tank is low on fuel.
To turn it off, add fuel to the fuel tank. See
Fuel on
page 5-4.
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Radio with CD
Playing the Radio
PWR (Power):Press this knob to turn the system
on and off.
VOL (Volume):Turn this knob to increase or to
decrease volume. The knob is capable of rotating
continuously.SCV (Speed-Compensated Volume):With SCV, your
audio system adjusts automatically to make up for
road and wind noise as you drive.
Set the volume at the desired level. Turn the control
ring behind the upper knob clockwise to increase
the SCV. Each notch on the control ring allows for more
volume compensation at faster vehicle speeds. Then,
as you drive, SCV automatically increases the volume,
as necessary, to overcome noise at any speed. The
volume level should always sound the same to you as
you drive. If you do not want to use SCV, turn the control
all the way down.
RECALL:Press this button to switch the display
between the radio station frequency and the time. Time
display is available with the ignition turned off.Finding a Station
AM FM:Press this button to switch between FM1, FM2,
and AM. The display will show your selection.
TUNE:Press this knob lightly so it extends. Turn it to
select radio stations. Push the knob back into its stored
position when you are not using it.
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Setting the Tone (Bass/Treble)
BASS:Press this knob lightly so it extends. Turn the
knob to increase or to decrease bass.
TREB (Treble):Press this knob lightly so it extends.
Turn the knob to increase or to decrease treble. If
a station is weak or noisy, you may want to decrease
the treble.
Return these knobs to their stored positions when
you're not using them.
AUTO TONE (Automatic Tone):Press this knob to
select customized equalization settings designed
for country/western, jazz, talk, pop, rock, and classical.
To return the bass and treble to the manual mode,
either press and release the AUTO TONE button until the
display goes blank or press and release the BASS or
TREB knobs and turn them until the display goes blank.
Adjusting the Speakers (Balance/Fade)
BAL (Balance):Press this knob lightly so it extends.
Turn the knob to move the sound toward the right or the
left speakers.
FADE:Press this knob lightly so it extends. Turn the
knob to move the sound toward the front or the
rear speakers.
Return these knobs to their stored positions when you
are not using them.
Playing a CD
Insert a CDpartway into the slot, label side up. The
player will pull it in and the CD should begin playing. CD
and a CD symbol will appear on the display. If you
want to insert a CD when the ignition is off, ®rst press
the EJECT button. If you insert a CD with the radio
off and the ignition on, it will start to play.
If you turn off the ignition or radio with a CD in the
player, it will stay in the player. When you turn on the
ignition or radio, the CD will start playing where it
stopped, if it was the last selected audio source.
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Rear Seat Audio (RSA)
This feature allows rear seat passengers to listen to any
of the music sources: radio, and CDs. However, the
rear seat passengers can only control the music sources
that the front seat passengers are not listening to. For
example, rear seat passengers may listen to a CD
through headphones while the driver listens to the radio
through the front speakers. The rear seat passengers
have control of the volume for each set of headphones.
Be aware that the front seat audio controls always
override the rear seat audio controls.PWR (Power):Press this button to turn the rear seat
audio system on or off. The rear speakers will be muted
when the power is turned on. You may operate the
rear seat audio functions even when the front seat radio
power is off.
VOL (Volume):Press this knob lightly so it extends.
Turn the knob to increase or to decrease volume. Push
the knob back into its stored position when you are
not using it. The upper knob controls the upper
headphone and the lower knob controls the lower
headphone.
AM FM:Press this button to switch between FM1,
FM2, and AM. If the front passengers are already
listening to the radio, the RSA controller will not switch
between the bands or change the frequency.
Press AM FM to listen to the radio when a CD is
playing. The inactive CD will remain safely inside the
radio for future listening.
wSEEKx:While listening to the radio, press the up
or the down arrow to go to the next or to the previous
station and stay there. This button is inactive if the front
radio is in use.
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