2004 CHEVROLET ASTRO CARGO VAN warning light

Seats and Restraint Systems........................... 1-1
Front Seats
............................................... 1-3
Rear Seats
............................................... 1-7
Safety Belts
.............................................1-13
Child Restraints
.......................................1-35
Air Bag System
.......................................1-62
Restraint System Check
............................1-68
Features and Controls..................................... 2-1
Keys
........................................................ 2-2
Doors and Locks
....................................... 2-7
Windows
.................................................2-15
Theft-Deterrent Systems
............................2-17
Starting and Operating Your Vehicle
...........2-18
Mirrors
....................................................2-31
HomeLink
®Transmitter
.............................2-32
Storage Areas
.........................................2-36
Instrument Panel............................................. 3-1
Instrument Panel Overview
.......................... 3-2
Climate Controls
......................................3-17
Warning Lights, Gages, and Indicators
........3-22
Audio System(s)
.......................................3-35
Driving Your Vehicle....................................... 4-1
Your Driving, the Road, and Your Vehicle
..... 4-2
Towing
...................................................4-29Service and Appearance Care.......................... 5-1
Service
..................................................... 5-3
Fuel
......................................................... 5-4
Checking Things Under the Hood
................. 5-9
All-Wheel Drive
........................................5-50
Rear Axle
...............................................5-51
Front Axle
...............................................5-52
Bulb Replacement
....................................5-53
Windshield Wiper Blade Replacement
.........5-59
Tires
......................................................5-60
Appearance Care
.....................................5-91
Vehicle Identication
.................................5-99
Electrical System
....................................5-100
Capacities and Specications
...................5-107
Normal Maintenance Replacement Parts
....5-109
Maintenance Schedule..................................... 6-1
Maintenance Schedule
................................ 6-2
Customer Assistance and Information.............. 7-1
Customer Assistance and Information
........... 7-2
Reporting Safety Defects
...........................7-11
Index................................................................ 1
2004 Chevrolet Astro Owner ManualM

Vehicle Damage Warnings
Also, in this manual you will nd these notices:
Notice:These mean there is something that could
damage your vehicle.
A notice tells about something that can damage the
vehicle. Many times, this damage would not be covered
by your vehicle’s warranty, and it could be costly. But
the notice will tell what to do to help avoid the damage.
When you read other manuals, you might see
CAUTION and NOTICE warnings in different colors
or in different words.
There are also warning labels on the vehicle.
They use the same words, CAUTION or NOTICE.
Vehicle Symbols
The vehicle has components and labels that use
symbols instead of text. Symbols are shown along
with the text describing the operation or information
relating to a specic component, control, message,
gage, or indicator.
If you need help guring out a specic name of
a component, gage, or indicator, reference the
following topics:
Seats and Restraint Systems in Section 1
Features and Controls in Section 2
Instrument Panel Overview in Section 3
Climate Controls in Section 3
Warning Lights, Gages, and Indicators in Section 3
Audio System(s) in Section 3
Engine Compartment Overview in Section 5
iv

All-Wheel Drive
If your vehicle has all-wheel drive, your engine’s
driving power is sent to all four wheels for extra traction
when needed.
This is like four-wheel drive, but there is no separate
lever or switch to engage or disengage the front axle.
It is fully automatic, and adjusts itself as needed for
road conditions.
You may experience a brief vehicle vibration upon
acceleration when driving in slippery conditions.
This is normal and is an indication that the all-wheel
drive system is functioning properly.
Parking Brake
To set the parking brake, hold the regular brake pedal
down with your right foot.
Push down the parking brake pedal with your left foot.
If the ignition is on, the brake system warning light
will come on.To release the parking brake, hold the regular brake
pedal down. Pull the brake release lever located on
the lower left side of the steering column.
Notice:Driving with the parking brake on can
overheat the brake system and cause premature
wear or damage to brake system parts. Verify that
the parking brake is fully released and the brake
warning light is off before driving.
If you are towing a trailer and are parking on a hill,
seeTowing a Trailer on page 4-35. That section shows
what to do rst to keep the trailer from moving.
2-25

Instrument Panel Overview...............................3-2
Hazard Warning Flashers................................3-4
Other Warning Devices...................................3-5
Horn.............................................................3-5
Tilt Wheel.....................................................3-5
Turn Signal/Multifunction Lever.........................3-6
Exterior Lamps.............................................3-12
Interior Lamps..............................................3-14
Accessory Power Outlets...............................3-15
Ashtrays and Cigarette Lighter........................3-16
Climate Controls............................................3-17
Climate Control System.................................3-17
Outlet Adjustment.........................................3-19
Rear Heating System....................................3-20
Rear Air Conditioning System.........................3-20
Warning Lights, Gages, and Indicators............3-22
Instrument Panel Cluster................................3-23
Speedometer and Odometer...........................3-24
Safety Belt Reminder Light.............................3-24
Air Bag Readiness Light................................3-25
Charging System Light..................................3-26
Voltmeter Gage............................................3-26
Brake System Warning Light..........................3-27Anti-Lock Brake System Warning Light.............3-28
Engine Coolant Temperature Gage..................3-28
Malfunction Indicator Lamp.............................3-29
Oil Pressure Gage........................................3-32
Security Light...............................................3-33
Service All-Wheel Drive Light.........................3-33
Tow/Haul Mode Light....................................3-34
Check Gages Warning Light...........................3-34
Fuel Gage...................................................3-34
Low Fuel Warning Light.................................3-35
Audio System(s).............................................3-35
Setting the Time for Radios with
the Set Button..........................................3-36
Setting the Time for Radios with
HR and MN Buttons..................................3-36
AM-FM Radio...............................................3-36
Radio with CD..............................................3-38
Rear Seat Audio (RSA).................................3-43
Theft-Deterrent Feature..................................3-44
Radio Reception...........................................3-47
Care of Your CDs.........................................3-47
Care of Your CD Player................................3-47
Fixed Mast Antenna......................................3-47
Section 3 Instrument Panel
3-1

The main components of your instrument panel are
the following:
A. Exterior Lamps. SeeExterior Lamps on page 3-12.
B. Instrument Panel Brightness Control. SeeExterior
Lamps on page 3-12.
C. Turn Signal/Multifunction Lever. SeeTurn
Signal/Multifunction Lever on page 3-6.
D. Hazard Warning Flasher Button. SeeHazard
Warning Flashers on page 3-4.
E. Shift Lever. SeeStarting Your Engine on page 2-20.
F. Ignition Switch. SeeIgnition Positions on page 2-18.
G. Rear Defogger Button. SeeClimate Control
System on page 3-17.
H. Climate Control System. SeeClimate Control
System on page 3-17.
I. Rear A/C Control. SeeRear Heating System
on page 3-20.J. Rear Heater Control. SeeRear Heating System
on page 3-20.
K. Rear Window Washer/Wiper Switch. SeeTurn
Signal/Multifunction Lever on page 3-6.
L. Ashtray. SeeAshtrays and Cigarette Lighter
on page 3-16.
M. Dome Override Button. SeeInterior Lamps
on page 3-14.
N. Hood Release. SeeHood Release on page 5-10.
O. Cigarette Lighter. SeeAshtrays and Cigarette
Lighter on page 3-16.
P. Audio System(s). SeeAudio System(s)
on page 3-35.
Q. Front Storage Compartment. SeeStorage Areas
on page 2-36.
R. Accessory Power Outlets. SeeAccessory Power
Outlets on page 3-15.
3-3

Warning Lights, Gages,
and Indicators
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help you
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
your 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 you
will see in the details on the next few pages, some
warning lights come on briey when you start the engine
just to let you know they’re 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’s a problem with your vehicle.
When one of the warning lights comes on and stays
on when 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 warning lights and gages. They’re a big help.
3-22

Charging System Light
This light should come on
briey when you turn on
the ignition, before starting
the engine, as a check
to show you it is working.
After the engine starts, the light should go out. If it
stays on or comes on while you are driving, you may
have a problem with your charging system. It could
indicate a problem with the generator drive belt, or
some other charging system problem. Have it checked
right away. Driving while this light is on could drain
your battery.
If you must drive a short distance with this light on,
it helps to turn off all your accessories, such as the
radio and air conditioner.
Voltmeter Gage
When your engine is not
running, but the ignition is
on (in the RUN position),
the gage shows your
battery’s state of charge
in DC volts.
When the engine is running, the gage shows the
condition of the charging system. 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 at an idle for an
extended period. This condition is normal since the
charging system is not able to provide full power
at engine idle. As engine speeds are increased, this
condition should correct itself as higher engine speeds
allow the charging system to create maximum power.
3-26

You can only drive for a short time with the readings
in either warning zone. If you must drive, turn off
all unnecessary accessories.
Readings in either warning zone indicate a possible
problem in the electrical system. Have the vehicle
serviced as soon as possible.
Brake System Warning Light
When the ignition is on, the brake system warning light
will come on when you set your parking brake. The
light will stay on if your parking brake doesn’t release
fully. If it stays on after your parking brake is fully
released, it means you have a brake problem.
Your vehicle’s hydraulic brake system is divided into two
parts. If one part isn’t 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 could be a brake
problem. Have your brake system inspected right away.This light should come on
briey when you turn the
ignition key to RUN. If
it doesn’t come on then,
have it xed so it will
be ready to warn you if
there’s a problem.
If the light comes on while you are driving, pull off the
road and stop carefully. 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 4-29.
{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.
3-27