2003 CHEVROLET ASTRO belt

Care of Safety Belts
Keep bel- ;lean -.--I -’ry.
I
Do not bleach or dye safety belts. If you do,
it may severely weaken them. In a crash,
they might not be able to provide adequate
protection. Clean safety belts only with mild
soap and lukewarm water.
Weatherstrips
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth at least every six
months. During very cold, damp weather more frequent
application may be required. See
Part D: Recommended
Fluids and Lubricants on page
6-32.
Cleaning the Outside of Your Vehicle
The paint finish on your vehicle provides beauty, depth
of color, gloss retention and durability.
Washing Your Vehicle
The best way to preserve your vehicle’s finish is to keep it
clean by washing it often with lukewarm or cold water.
Don’t wash your vehicle in the direct rays
of the sun.
Use a car washing soap. Don’t use strong soaps
or chemical detergents. Be sure to rinse the vehicle
well, removing all soap residue completely. You can get
GM-approved cleaning products from your dealer.
See
GM Vehicle Care/Appearance Materials on
page 5-89. Don’t use cleaning agents that are petroleum
based, or that contain acid or abrasives. All cleaning
agents should be flushed promptly and not allowed
to dry on the surface, or they could stain.
Dry the finish
with a soft, clean chamois or an all-cotton towel to
avoid surface scratches and water spotting.
High pressure car washes may cause water to enter
your vehicle.
Cleaning Exterior Lamps/Lenses
Use only lukewarm or cold water, a soft cloth and a
car washing soap to clean exterior lamps and lenses.
Follow instructions under “Washing Your Vehicle.”
5-86

Selecting the Right Schedule
First you’ll need to decide which of the two schedules
is right for your vehicle. Here’s how to decide which
schedule to follow:
Short Trip/City Definition
Follow the Short Trip/City Scheduled Maintenance if any
one of these conditions is true for your vehicle:
e
e
e
e
Most trips are less than 5 miles (8 km). This is
particularly important when outside temperatures
are below freezing.
Most trips include extensive idling (such as frequent
driving in stop-and-go traffic).
You frequently tow a trailer or use a carrier on top
of your vehicle.
If the vehicle is used for delivery service, police,
taxi or other commercial application.
One of the reasons you should follow this schedule if
you operate your vehicle under any of these conditions
is that these conditions cause engine oil to break
down sooner.
Short Trip/City Intervals
Every 3,000 Miles (5 000 km): Engine Oil and Filter
Change (or
3 months, whichever occurs first). Chassis
Lubrication (or
3 months, whichever occurs first).
Drive Axle Fluid Check.
Every 6,000 Miles (IO 000 km): Tire Rotation.
Every 15,000 Miles (25 000 km): Engine Air
Cleaner Filter Inspection,
if driving in dusty conditions.
Front Wheel Bearing Repack (two-wheel drive only)
(or at each brake relining, whichever occurs first).
Automatic Transmission Service (severe conditions only).
Every 30,000 Miles (50 000 km): Engine Air Cleaner
Filter Replacement. Fuel Filter Replacement.
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (normal conditions).
Transfer Case Fluid Change.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Positive
Crankcase Ventilation (PCV) Valve Inspection.
Every 150,000 Miles (240 000 km): Cooling System
Service (or every
60 months, whichever occurs
first). Engine Accessory Drive Belt Inspection.
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.
6-5

Long Trip/Highway Definition
Follow this scheduled maintenance only if none of
the conditions from the Short Trip/City Scheduled
Maintenance are true. Do not use this schedule
if the
vehicle is used for trailer towing, driven in a dusty area
or used
off paved roads. Use the Short Trip/City
schedule for these conditions.
Driving a vehicle with a fully warmed engine under
highway conditions will cause engine oil
to break
down slower.
Long Trip/Highway Intervals
Every 7,500 Miles (12 500 km): Engine Oil and Filter
Change (or every
12 months, whichever occurs first).
Chassis Lubrication (or
12 months, whichever
occurs first). Drive Axle Fluid Check. Tire Rotation.
Every 15,000 Miles (25 000 km): Automatic
Transmission Service (severe conditions only).
Every 30,000 Miles (50 000 km): Fuel Filter
Replacement. Engine Air Cleaner Filter Replacement.
Front Wheel Bearing Repack (two-wheel drive only)
(or at each brake relining, whichever occurs first).
Every 50,000 Miles (83 000 km): Automatic
Transmission Service (normal conditions).
Transfer Case Fluid Change.
Every 100,000 Miles (166 000 km): Spark Plug Wire
Inspection. Spark Plug Replacement. Positive
Crankcase Ventilation (PCV) Valve Inspection.
Every 150,000 Miles (240 000 km): Cooling System
Service (or every
60 months, whichever occurs first).
Engine Accessory Drive Belt Inspection.
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.
6-6

100,000 Miles (166 000 km)
0 Inspect spark plug wires. An Emission Control
Service.
0 Replace spark plugs. An Emission Control Service.
0 If you haven’t used your vehicle under severe service
conditions listed previously and, therefore, haven’t
changed your automatic transmission fluid, change
both the fluid and filter.
0 Change transfer case fluid.
Cl Inspect Positive Crankcase Ventilation (PCV) valve.
An Emission Control Service.
150,000 Miles (240 000 km)
0 Drain, flush and refill cooling system (or every
60 months since last service, whichever occurs first).
See
Engine Coolant on page 5-28 for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test cooling system and
pressure cap.An
Emission Control Service.
An Emission Control Service.
Cl Inspect engine accessory drive belt.
Long Trip/Highway Scheduled
Maintenance
The services shown in this schedule up to 100,000 miles
(166 000 km) should be repeated after 100,000 miles
(166 000 km) at the same intervals for the life of
this vehicle. The services shown at
150,000 miles
(240 000 km) should be repeated at the same interval
after
150,000 miles (240 000 km) for the life of this
vehicle.
See
Part 5: Owner Checks and Services on page 6-26
and Part C: Periodic Maintenance Inspections on
page 6-30.
Footnotes
t The U.S. Environmental Protection Agency or the
California Air Resources Board has determined that the
failure to perform this maintenance item will not nullify the emission warranty or limit recall liability prior to
the completion of the vehicle’s useful life. We, however,
urge that all recommended maintenance services be
performed at the indicated intervals and the
maintenance be recorded.
# Lubricate the front suspension, ball joints and kingpin
bushings, steering linkage and transfer case shift linkage,
parking brake cable guides and brake pedal springs.
+ A good time to check your brakes is during tire
rotation. See Brake System Inspection
on page 6-31.
6-1 8

97,500 Miles (162 500 km)
U Change engine oil and filter (or every 12 months,
0 Lubricate chassis components (or every 12 months,
0 Check readfront axle fluid level and add fluid as
whichever occurs first).
An Emission Control Service.
whichever
occurs first). (See footnote #).
needed. Check constant velocity joints and axle seals
for leaking.
page 5-64 for proper rotation pattern and additional
information.
(See footnote +).
0 Rotate tires. See Tire Inspection and Rotation on
100,000 Miles (166 000 km)
0 Inspect spark plug wires. An Emission Control
U Replace spark plugs. An Emission Control Service.
Service.
0 If you haven’t used your
vehicle under severe service
conditions listed previously and, therefore, haven’t
changed your automatic transmission fluid, change
both the fluid and filter.
150,000 Miles (240 000 km)
U Drain, flush and refill cooling system (or every
60 months since last service, whichever occurs first).
See
Engine Coolant on page 5-28 for what to use.
inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap.
An Emission Control Service.
U Inspect engine accessory drive belt. An Emission
Control Service.
0 Change transfer case fluid.
0 Inspect Positive Crankcase Ventilation (PCV) valve.
An Emission Control Service.
6-25

Part B: Owner Checks and Services
Listed in this part are owner checks and services
which should be performed at the intervals specified to
help ensure the safety, dependability and emission
control performance of your vehicle.
Be sure any necessary repairs are completed at once.
Whenever any fluids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
in Part D.
At Each Fuel Fill
It is important for you or a service station attendant to
perform these underhood checks at each fuel fill.
Engine Oil Level Check
Check the engine oil level and add the proper oil
if necessary. See Engine Oil on page 5-15 for
further details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL@
coolant mixture
if necessary. See Engine Coolant
on page
5-28 for further details.
Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the windshield
washer tank and add the proper fluid
if necessary.
See
Windshield Washer Fluid on page 5-41 for
further details.
At Least Once a Month
Tire Inflation Check
Make sure tires are inflated to the correct pressures.
Don’t forget to check your spare tire. See
Tires on
page
5-63 for further details.
At Least Twice a Year
Restraint System Check
Make sure the safety belt reminder light and all your belts,
buckles, latch plates, retractors and anchorages are
working properly. Look for any other loose or damaged
safety belt system parts. If you see anything that might
keep a safety belt system from doing its job, have it
repaired. Have any torn or frayed safety belts replaced.
Also look for any opened or broken air bag coverings,
and have them repaired or replaced. (The air bag
system does not need regular maintenance.)
6-26

Accessory Power Outlets ................................. 3-16
Activating the Theft-Deterrent Feature
................ 3-48
Adding Equipment to Your Air Bag-Equipped
Vehicle
....................................................... 1-70
Adding Washer Fluid
....................................... 5-41
Additional Program Information
......................... 7-1 0
Additives, Fuel ................................................. 5-6
Add-On Electrical Equipment
............................ 5-92
Add-on Equipment
.......................................... 4-31
Adjusting the Speakers (Balance/Fade)
........ 3-40, 3-43
Air Bag
Readiness Light
.......................................... 3-26
Air Bag System
.............................................. 1-62
Adding Equipment to Your
Air Bag-Equipped Vehicle
...................... 1-70
How Does an Air Bag Restrain?
.................... 1-67
Servicing Your Air Bag-Equipped Vehicle
......... 1-69
What Will You See After an Air Bag inflates?
...... 1-68
When Should an Air Bag Inflate?
................... 1-66
Where Are the Air Bags?
.............................. 1-64
All Overseas Locations
...................................... 7-5
All-Wheel Drive
............................................... 5-52
All-Wheel Drive (AWD) System
......................... 2-26
All-Wheel-Drive Service Light
............................ 3-35
Aluminum Wheels
........................................... 5-88
What
Makes an Air Bag Inflate?
.................... 1-67
Air CleanedFiIter, Engine
... ...................... 5-24
AM
............................................................... 3-50 AM-FM Radio
...................... ................ 3-39
Antenna, Fixed Mast
....................................... 3-50
Anti-lock Brake System
..................................... 4-7
Anti-Lock Brake, System Warning Light
.............. 3-29
Appearance Care
............................................ 5-83
Care of Safety Belts
.................................... 5-86
Chemical Paint Spotting
............................... 5-89
Cleaning the Inside of Your Vehicle
................ 5-83
Finish Damage
............................................ 5-88
Sheet Metal Damage
................................... 5-88
Underbody Maintenance
............................... 5-89
Weatherstrips
.............................................. 5-86
Ashtrays
........................................................ 3-17
Audio System(s)
............................................. 3-38
Audio Systems
AM-FM Radio
............................................. 3-39
Care of Your CD Player
............................... 3-50
Care of Your CDs
........................................ 3-50
Fixed Mast Antenna
..................................... 3-50
Radio with CQ
............................................ 3-41
Rear Seat Audio (RSA)
................................ 3-46
Setting the Time for Radios with HR and
MN Buttons
............................................. 3-38
Setting the Time for Radios with the
Set Button
.............................................. 3-38
Theft-Deterrent Feature
................................ 3-47
Understanding Radio Reception
..................... 3-50
Cleaning
the Outside of Your Vehicle
.............. 5-86
GM Vehicle Care/Appearance Materials
.......... 5-89
1

Automatic Headlamp System ..................
Automatic Transmission
Fluid
................................................
Automatic Transmission Check ................
Automatic Transmission Shift Lock Control
System Check
...................................
Operation .........................................
......... 3-13
......... 5-25
......... 2-23
......... 6-27
......... 6-28
Backing Up
.................................................... 4-38
Battery
.......................................................... 5-46
Battery Replacement
......................................... 2-6
Battery Run-Down Protection
............................ 3-1 6
Before Leaving on a Long Trip
......................... 4-21
Bench Seat
............................................ 1-1 1, 1-57
Body Lubrication Service
.................................. 6-27
Brake Parking
...................................................... 2-26
System Inspection
....................................... 6-31
System Warning Light
.................................. 3-28
Brake Adjustment
............................................ 5-45
Brake Fluid
.................................................... 5-42
Brake Pedal Travel
......................................... 5-45
Brake Wear
................................................... 5-45
Brakes
.......................................................... 5-42
Braking in Emergencies
..................................... 4-9
Break-In, New Vehicle
..................................... 2-19
Braking
........................................................... 4-6
Bucket Seats, Rear
......................................... 1-12 Bulb
Replacement
........................................... 5-55
Halogen Bulbs ............................................ 5-55
Headlamps
............................ ......... 5-55
Replacement Bulbs
.............................. 5-61
Taillamps
.................................................... 5-60
Front
Turn Signal Lamps
.............................. 5-59
Buying New Tires
................................... 5-66
C
California Fuel .................................................. 5-6
Canada
........................................................... 7-5
Canadian Owners
................................................ ii
Canadian Roadside Assistance ............ ....... 7-7
Cancelling the Sliding Door
Security Lock
.......................................... 2-12
Capacities and Specifications
........................ 5-99
Carbon Monoxide
............... ..... 4-24, 4-31, 2-30
Care of
Safety Belts
.... ~ ~ ~ ~ ..................... 5-86
Care of Your
CD Player
.......... ...., ............ ..... 3-50
CDS
.......................................................... 3-50
Cargo Vans
........................................... 1-41, 1-48
Center Passenger Position, Safety Belts
............. 1-27
Chains, Tires
..................................... ..... 5-70
Charging System Light
....................... ..... 3-27
Engine Light
.............................. , ..... 3-30
Check
Gages Warning Light
................................... 3-36
2