1999 CHEVROLET ASTRO warning lights

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v
For example,
these symbols
are used on an
original battery:
CAUTION
POSSIBLE
INJURY
PROTECT
EYES BY
SHIELDING
CAUSTIC
BATTERY
ACID COULD
CAUSE
BURNS
AVOID
SPARKS OR
FLAMES
SPARK OR
FLAME
COULD
EXPLODE
BATTERY
These symbols
are important
for you and
your passengers
whenever your
vehicle is
driven:
DOOR LOCK
UNLOCK
FASTEN
SEAT
BELTS
POWER
WINDOW
AIR BAG
These symbols
have to do with
your lamps:
MASTER
LIGHTING
SWITCH
TURN
SIGNALS
PARKING
LAMPS
HAZARD
WARNING
FLASHER
DAYTIME
RUNNING
LAMPS
FOG LAMPS
These symbols
are on some of
your controls:
WINDSHIELD
WIPER
WINDSHIELD
WASHER
WINDSHIELD
DEFROSTER
REAR
WINDOW
DEFOGGER
VENTILATING
FAN
These symbols
are used on
warning and
indicator lights:
ENGINE
COOLANT
TEMP
BATTERY
CHARGING
SYSTEM
BRAKE
COOLANT
ENGINE OIL
PRESSURE
ANTI-LOCK
BRAKES
Here are some
other symbols
you may see:
FUSE
LIGHTER
HORN
SPEAKER
FUEL
Vehicle Symbols
These are some of the symbols you may find on your vehicle.

2-
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2-1
Section 2 Features and Controls
Here you can learn about the many standard and optional features on your vehicle, and information on starting,
shifting and braking. Also explained are the instrument panel and the warning systems that tell you if everything is
working properly
-- and what to do if you have a problem.
2
-2 Keys
2
-4 Front Doors
2
-4 Rear Doors
2
-6 Door Locks
2
-7 Keyless Entry System (Option)
2
-10 Sliding Door
2
-13 Hatch
2
-14 Theft
2
-14 Passlock

2-15 New Vehicle ªBreak-Inº
2
-16 Ignition Positions
2
-17 Starting Your Engine
2
-19 Engine Coolant Heater (If Equipped)
2
-20 Automatic Transmission Operation
2
-23 Parking Brake
2
-24 Shifting Into PARK (P)
2
-26 Shifting Out of PARK (P)
2
-27 Parking Over Things That Burn2
-27 Engine Exhaust
2
-28 Running Your Engine While You're Parked
2
-29 Locking Rear Axle
2
-29 All-Wheel Drive (Option)
2
-29 Windows
2
-31 Horn
2
-31 Tilt Wheel (If Equipped)
2
-31 Turn Signal/Multifunction Lever
2
-37 Exterior Lamps
2
-38 Interior Lamps
2
-40 Mirrors
2
-41 Storage Compartments
2
-49 Ashtrays and Cigarette Lighter
2
-51 Sun Visors
2
-51 Accessory Power Outlets
2
-52 Universal Transmitter (Option)
2
-56 Instrument Panel
2
-59 Warning Lights, Gages and Indicators

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2-59 Speedometer and Odometer
Your speedometer lets you see your speed in both miles
per hour (mph) and kilometers per hour (km/h). Your
odometer shows how far your vehicle has been driven,
in either miles (used in the United States) or kilometers
(used in Canada).
Your odometer is tamper resistant. The digital odometer
will read 999,999 if someone tries to turn it back.
You may wonder what happens if your vehicle needs a
new odometer installed. If the new one can be set to the
mileage total of the old odometer, then it must be. But if
it can't, then it's set at zero, and a label must be put on
the driver's door to show the old mileage reading when
the new odometer was installed.
Trip Odometer
The trip odometer can tell you how far your vehicle has
been driven since you last set the trip odometer to zero.
The trip odometer will appear in place of your regular
odometer when you press the TRIP button.
To reset the trip odometer, press and hold the TRIP
button. To change back to the regular odometer, press
the TRIP button again.
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 briefly 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.

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2-60
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.
Safety Belt Reminder Light
When the key is turned to RUN or START, a tone will
come on for about eight seconds to remind people to
fasten their safety belts, unless the driver's safety belt is
already buckled.
The safety belt light will
also come on and stay on
for about 20 seconds, then
it will flash for about
55 seconds.
If the driver's belt is already buckled, neither the tone
nor the light will come on.
Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows AIR BAG. The system checks the
air bag's electrical system for malfunctions. The light
tells you if there is an electrical problem. The system
check includes the air bag sensors, the air bag modules,
the wiring and the crash sensing and diagnostic module.
For more information on the air bag system, see ªAir
Bagº in the Index.
This light will come on
when you start your engine,
and it will flash for a few
seconds. Then the light
should go out. This means
the system is ready.
If the air bag readiness light stays on after you start the
engine or comes on when you are driving, your air bag
system may not work properly. Have your vehicle
serviced right away.
The air bag readiness light should flash for a few
seconds when you turn the ignition key to RUN. If the
light doesn't come on then, have it fixed so it will be
ready to warn you if there is a problem.

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6-27
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
Engine Coolant
The cooling system in your vehicle is filled with
DEX
-COOL
engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add only
DEX
-COOL
extended life coolant.
The following explains your cooling system and how
to add coolant when it is low. If you have a problem
with engine overheating, see ªEngine Overheatingº in
the Index.A 50/50 mixture of clean, drinkable water and
DEX
-COOL
coolant will:

Give freezing protection down to
-34F (-37C).

Give boiling protection up to 265F (129C).

Protect against rust and corrosion.

Help keep the proper engine temperature.

Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant, it is important that you
use only DEX
-COOL (silicate-free) coolant.
If coolant other than DEX-COOL is added to
the system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the
use of coolant other than DEX
-COOL is not
covered by your new vehicle warranty.

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9-6
Key Lock Cylinders Service 7-42 . . . . . . . . . . . . . . . . . . . . .
Keyless Entry System 2-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keys 2-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Labels
Certification/Tire 4-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Parts Identification 6-59 . . . . . . . . . . . . . . . . . . . . .
Tire-Loading Information 4-28 . . . . . . . . . . . . . . . . . . . . . .
Vehicle Identification Number 6-59 . . . . . . . . . . . . . . . . . . .
Lamps
Dome 2
-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior 2-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior 2-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Reminder 2-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Latches, Seatback 1-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle 2-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Leaving Your Vehicle with the Engine Running 2-25 . . . . . . .
Lighter 2-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lights
Air Bag Readiness 1
-28, 2-60 . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lock Brake System Warning 2-63, 4-7 . . . . . . . . . . . .
Brake System Warning 2-62 . . . . . . . . . . . . . . . . . . . . . . . . .
Charging System 2-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Engine 2-64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check Gages 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Daytime Running Lamps Indicator 2-68 . . . . . . . . . . . . . . .
Safety Belt Reminder 1-13, 2-60 . . . . . . . . . . . . . . . . . . . . .
Security 2-67 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service AWD 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Engine Soon 2-64 . . . . . . . . . . . . . . . . . . . . . . . . . . Loading Your Vehicle 4
-28 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locks
Cylinders 7
-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door 2-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Transmission Lock Check 7-44 . . . . . . . . . . . . . . .
Key Lock Cylinder Service 7-42 . . . . . . . . . . . . . . . . . . . . .
Power Door 2-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sliding Door Child Security 2-11 . . . . . . . . . . . . . . . . . . . . .
Lubricants and Fluids 7-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lubrication Service, Body 7-42 . . . . . . . . . . . . . . . . . . . . . . . .
Luggage Carrier 2-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lumbar Controls 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance, Normal Replacement Parts 6-69 . . . . . . . . . . .
Maintenance Record 7-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Schedule 7-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long Trip/Highway 7-29 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Long Trip/Highway Definition 7-6 . . . . . . . . . . . . . . . . . . .
Long Trip/Highway Intervals 7-6 . . . . . . . . . . . . . . . . . . . . .
Owner Checks and Services 7-41 . . . . . . . . . . . . . . . . . . . . .
Periodic Maintenance Inspections 7-45 . . . . . . . . . . . . . . . .
Recommended Fluids and Lubricants 7-47 . . . . . . . . . . . . .
Scheduled Maintenance Services 7-4 . . . . . . . . . . . . . . . . . .
Short Trip/City 7-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Short Trip/City Definition 7-5 . . . . . . . . . . . . . . . . . . . . . . .
Short Trip/City Intervals 7-5 . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance, Underbody 6-57 . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance When Trailer Towing 4-38 . . . . . . . . . . . . . . . . .
Malfunction Indicator Lamp 2-64 . . . . . . . . . . . . . . . . . . . . . .
Manual Front Seat 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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9-12
Warning Devices 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Lights, Gages and Indicators 2-59 . . . . . . . . . . . . . . .
Warranty Information 8-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Washer Fluid, Windshield 6-31 . . . . . . . . . . . . . . . . . . . . . . . .
Washing Your Vehicle 6-55 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weatherstrip Lubrication 7-42 . . . . . . . . . . . . . . . . . . . . . . . . .
Weatherstrips 6-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel
Alignment 6
-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ratchet 5-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacement 6-49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wrench 5-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windows 2-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Express-Down 2-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power 2-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Swing-Out 2-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Windshield Washer 2
-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 6-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Level Check 7-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear 2-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wipers 2-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Blade Replacement 6-42 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning the Blades 6-54 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses 6-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Winter Driving 4-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper Blade Check 7-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiper Blades, Cleaning 6-54 . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring, Headlamp 6-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wrecker Towing 5-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wrench, Wheel 5-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .