2003 CHEVROLET ASTRO tires

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

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

Tires ..................................................... 5.63. 5-88
Buying New Tires
........................................ 5-66
Chains
....................................................... 5-70
Changing a Flat Tire
.................................... 5-71
Compact Spare Tire
..................................... 5-82
If a Tire Goes Flat
....................................... 5-70
Inflation
- Tire Pressure ............................... 5-64
Inspection and Rotation
................................ 5-64
Uniform Tire Quality Grading
......................... 5-67
Wheel Alignment and Tire Balance
................. 5-69
Wheel Replacement
..................................... 5-69
When It
Is Time for New Tires ...................... 5-66
To Use the Engine Coolant Heater
.................... 2-22
Top
of the Instrument Panel ............................. 5-85
Top Strap
...................................................... 1-48
Top Strap Anchor Location
............................... 1-50
Torque Lock
................................. ....... 2-29
Tow/Haul Mode Button
..................................... 2-25
Tow/Haul Mode Light
................................... 3-36
Towing Recreational Vehicle
..................................... 4-29
Towing a Trailer
.......................................... 4-31
Your Vehicle
............................................... 4-29
Trailer Brakes
................................................. 4-36
Trailer Wiring Harness
..................................... 4-41
Trailering Package
.......................................... 4-31
Transfer Case
................................................ 5-52
Transmission Fluid, Automatic
........................................... 5-25
Total Weight on Your Vehicle’s Tires
... ....... 4-35 Transmission
Operation. Automatic
.................... 2-23
Transmission. Transaxle. Transfer Case Unit
Repair Manual
............................................ 7-11
Trip Odometer
................................................ 3-25
Turn Signal/Multifunction Lever
........................... 3-6
Turn Signals When Towing a Trailer
.................. 4-38
Transportation Options
...................................... 7-9
Turn and Lane Change Signals
.......................... 3-6
U
Underbody Flushing Service ................. ..... 6-29
Underhood Fuse Block
.................... ..... 5-96
Understanding Radio Reception
.... ..... 3-50
Uniform Tire Quality Grading
......................... 5-67
United States
................................................... 7-4
Unlocking the Theft-Deterrent Feature
After a Power Loss
...................................... 3-49
Used Replacement Wheels
.............................. 5-70
Using Cleaner on Fabric
.................................. 5-84
Using HomeLink@
........................................... 2-37
v
Vehicle
Control
..................................................... 4-6
Loading
...................................................... 4-29
Symbols
......................................................... iv
Damage Warnings
........................................... iv
13