2004 CHEVROLET ASTRO CARGO VAN tires

37,500 Miles (62 500 km)
❑Change engine oil and lter (or every
12 months, whichever occurs rst).
An Emission Control Service.
❑Lubricate chassis components (or every 12 months,
whichever occurs rst).(See footnote #).
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-71for proper rotation pattern and additional
information.(See footnote +).
45,000 Miles (75 000 km)
❑Change engine oil and lter (or every
12 months, whichever occurs rst).
An Emission Control Service.
❑Lubricate chassis components (or every 12 months,
whichever occurs rst).(See footnote #).
❑Inspect engine air cleaner lter. SeeEngine Air
Cleaner/Filter on page 5-21for more information.
An Emission Control Service. (See footnote †.)❑Change automatic transmission uid and lter if
the vehicle is mainly driven under one or more
of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C)
or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or
delivery service.
If you do not use your vehicle under any of these
conditions, change the uid and lter every
50,000 miles (83 000 km).
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-71for proper rotation pattern and additional
information.(See footnote +).
50,000 Miles (83 000 km)
❑If you have not used your vehicle under severe
conditions listed previously and, therefore, have
not changed your automatic transmission uid,
change both the uid and lter.
❑Change transfer case uid.
6-18

52,500 Miles (87 500 km)
❑Change engine oil and lter (or every
12 months, whichever occurs rst).
An Emission Control Service.
❑Lubricate chassis components (or every 12 months,
whichever occurs rst).(See footnote #).
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-71for proper rotation pattern and additional
information.(See footnote +).
60,000 Miles (100 000 km)
❑Change engine oil and lter (or every
12 months, whichever occurs rst).
An Emission Control Service.
❑Lubricate chassis components (or every 12 months,
whichever occurs rst).(See footnote #).
❑For Two-Wheel-Drive vehicles only: Clean and
repack the front wheel bearings (or at each
brake relining, whichever occurs rst).
❑Change automatic transmission uid and lter if
the vehicle is mainly driven under one or more
of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C)
or higher.
In hilly or mountainous terrain. When doing frequent trailer towing.
Uses such as found in taxi, police or
delivery service.
If you do not use your vehicle under any of these
conditions, change the uid and lter every
50,000 miles (83 000 km).
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-71for proper rotation pattern and additional
information.(See footnote +).
❑Replace fuel lter.An Emission Control Service.
(See footnote †).
❑Replace engine air cleaner lter. SeeEngine Air
Cleaner/Filter on page 5-21for more information.
An Emission Control Service.
67,500 Miles (112 500 km)
❑Change engine oil and lter (or every
12 months, whichever occurs rst).
An Emission Control Service.
❑Lubricate chassis components (or every 12 months,
whichever occurs rst).(See footnote #).
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-71for proper rotation pattern and additional
information.(See footnote +).
6-19

75,000 Miles (125 000 km)
❑Change engine oil and lter (or every
12 months, whichever occurs rst).
An Emission Control Service.
❑Lubricate chassis components (or every 12 months,
whichever occurs rst).(See footnote #).
❑Inspect engine air cleaner lter. SeeEngine Air
Cleaner/Filter on page 5-21for more information.
An Emission Control Service. (See footnote †.)
❑Change automatic transmission uid and lter if
the vehicle is mainly driven under one or more
of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C)
or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police or
delivery service.
If you do not use your vehicle under any of these
conditions, change the uid and lter every
50,000 miles (83 000 km).
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-71for proper rotation pattern and additional
information.(See footnote +).
82,500 Miles (137 500 km)
❑Change engine oil and lter (or every
12 months, whichever occurs rst).
An Emission Control Service.
❑Lubricate chassis components (or every 12 months,
whichever occurs rst).(See footnote #).
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-71for proper rotation pattern and additional
information.(See footnote +).
90,000 Miles (150 000 km)
❑Change engine oil and lter (or every
12 months, whichever occurs rst).
An Emission Control Service.
❑Lubricate chassis components (or every 12 months,
whichever occurs rst).(See footnote #).
❑For Two-Wheel-Drive vehicles only: Clean
and repack the front wheel bearings (or at each
brake relining, whichever occurs rst).
❑Change automatic transmission uid and lter if
the vehicle is mainly driven under one or more
of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C)
or higher.
In hilly or mountainous terrain.
6-20

When doing frequent trailer towing.
Uses such as found in taxi, police or
delivery service.
If you do not use your vehicle under any of these
conditions, change the uid and lter every
50,000 miles (83 000 km).
❑Replace fuel lter.An Emission Control Service.
(See footnote †).
❑Replace engine air cleaner lter. SeeEngine Air
Cleaner/Filter on page 5-21for more information.
An Emission Control Service.
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-71for proper rotation pattern and additional
information.(See footnote +).
97,500 Miles (162 500 km)
❑Change engine oil and lter (or every
12 months, whichever occurs rst).
An Emission Control Service.
❑Lubricate chassis components (or every 12 months,
whichever occurs rst).(See footnote #).
❑Rotate tires. SeeTire Inspection and Rotation on
page 5-71for proper rotation pattern and additional
information.(See footnote +).
100,000 Miles (166 000 km)
❑Inspect spark plug wires.An Emission
Control Service.
❑Replace spark plugs.An Emission Control Service.
❑If you have not used your vehicle under severe
service conditions listed previously and, therefore,
have not changed your automatic transmission uid,
change both the uid and lter.
❑Change transfer case uid.
❑Inspect Positive Crankcase Ventilation (PCV) valve.
An Emission Control Service.
150,000 Miles (240 000 km)
❑Drain, ush and rell cooling system (or every
60 months since last service, whichever occurs rst).
SeeEngine Coolant on page 5-26for what to use.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap.An Emission Control Service.
❑Inspect engine accessory drive belt.
An Emission Control Service.
6-21

Part B: Owner Checks and Services
Listed in this part are owner checks and services
which should be performed at the intervals specied
to help ensure the safety, dependability and emission
control performance of your vehicle.
Be sure any necessary repairs are completed at once.
Whenever any uids 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 ll.
Engine Oil Level Check
Check the engine oil level and add the proper oil
if necessary. SeeEngine Oil on page 5-13for
further details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
on page 5-26for further details.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the windshield
washer tank and add the proper uid if necessary. See
Windshield Washer Fluid on page 5-39for further details.
At Least Once a Month
Tire Ination Check
Visually inspect your tires and make sure tires are inated
to the correct pressures. Do not forget to check your
spare tire. SeeTires on page 5-60for 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.)
6-22

Automatic Transmission
Fluid..........................................................5-23
Operation...................................................2-22
Automatic Transmission Check..........................6-23
Automatic Transmission Shift Lock Control
System Check.............................................6-24
B
Backing Up....................................................4-42
Battery..........................................................5-44
Battery Replacement......................................... 2-6
Battery Run-Down Protection............................3-15
Before Leaving on a Long Trip.........................4-20
Bench Seat............................................1-10, 1-56
Body Lubrication Service..................................6-23
Brake
Parking......................................................2-25
System Inspection.......................................6-27
System Warning Light..................................3-27
Brake Adjustment............................................5-43
Brake Fluid....................................................5-40
Brake Pedal Travel.........................................5-43
Brake Wear...................................................5-42
Brakes..........................................................5-40
Braking........................................................... 4-6
Braking in Emergencies..................................... 4-8Break-In, New Vehicle.....................................2-18
Bucket Seats, Rear.........................................1-12
Bulb Replacement...........................................5-53
Front Turn Signal Lamps..............................5-57
Halogen Bulbs............................................5-53
Headlamps.................................................5-53
Replacement Bulbs......................................5-59
Taillamps....................................................5-57
Buying New Tires...........................................5-73
C
California Fuel.................................................. 5-5
Canada – Customer Assistance.......................... 7-5
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Canceling the Sliding Door Security Lock...........2-11
Capacities and Specications..........................5-107
Carbon Monoxide...........................2-29, 4-24, 4-35
Care of
Safety Belts................................................5-94
Your CD Player...........................................3-47
Your CDs ...................................................3-47
Cargo Van.....................................................1-49
Cargo Vans...........................................1-41, 1-47
CD Messages................................................3-42
Center Passenger Position, Safety Belts.............1-27
2

Chains, Tire...................................................5-76
Charging System Light....................................3-26
Check
Engine Light...............................................3-29
Gages Warning Light...................................3-34
Checking Brake Fluid......................................5-41
Checking Coolant............................................5-27
Checking Engine Oil........................................5-13
Checking Things Under the Hood....................... 5-9
Chemical Paint Spotting...................................5-97
Child Restraints
Child Restraint Systems...............................1-43
Infants and Young Children...........................1-38
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-51
Older Children.............................................1-35
Securing a Child Restraint Designed for
the LATCH System...................................1-54
Securing a Child Restraint in a Center
Seat Position...........................................1-56
Securing a Child Restraint in a Rear
Outside Seat Position...............................1-54
Securing a Child Restraint in the Right
Front Seat Position...................................1-58
Top Strap...................................................1-47
Top Strap Anchor Location............................1-49
Where to Put the Restraint...........................1-46
Cigarette Lighter.............................................3-16Cleaning
Inside of Your Vehicle..................................5-92
Outside of Your Vehicle................................5-95
Underbody Maintenance...............................5-97
Weatherstrips..............................................5-94
Cleaning Aluminum Wheels..............................5-96
Cleaning Exterior Lamps/Lenses.......................5-95
Cleaning Fabric/Carpet....................................5-92
Cleaning Glass Surfaces..................................5-94
Cleaning Interior Plastic Components.................5-94
Cleaning Leather............................................5-93
Cleaning the Top of the Instrument Panel...........5-93
Cleaning the Windshield and
Wiper Blades..............................................5-96
Cleaning Tires................................................5-97
Cleaning Vinyl................................................5-93
Climate Control System...................................3-17
Outlet Adjustment........................................3-19
Rear Air Conditioning System........................3-20
Rear Heating System...................................3-20
Compact Spare Tire........................................5-90
Composite Headlamps.....................................5-54
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-43
Coolant
Engine Temperature Gage............................3-28
Heater, Engine............................................2-21
Cooling System..............................................5-31
3

Storage Areas................................................2-36
Convenience Net.........................................2-43
Luggage Carrier..........................................2-43
Overhead Console.......................................2-38
Storing a Flat or Spare Tire and Tools...............5-89
Stuck in Sand, Mud, Ice or Snow......................4-28
Sun Visors.....................................................2-16
Sunglasses Storage Compartment.....................2-42
T
Taillamps.......................................................5-57
Theft-Deterrent, Radio.....................................3-44
Theft-Deterrent Systems...................................2-17
Passlock
®...................................................2-17
Throttle System Inspection...............................6-27
Tilt Wheel........................................................ 3-5
Tire Ination Check.........................................6-22
Tire Sidewall Labeling......................................5-61
Tire Size.......................................................5-66
Tire Terminology and Denitions........................5-68
Tires.............................................................5-60
Buying New Tires........................................5-73
Chains.......................................................5-76
Changing a Flat Tire....................................5-78
Compact Spare Tire.....................................5-90
If a Tire Goes Flat.......................................5-77Tires (cont.)
Ination - Tire Pressure................................5-70
Inspection and Rotation................................5-71
Uniform Tire Quality Grading.........................5-74
Wheel Alignment and Tire Balance.................5-75
Wheel Replacement.....................................5-75
When It Is Time for New Tires......................5-72
To Use the Engine Coolant Heater....................2-21
Top Strap......................................................1-47
Top Strap Anchor Location...............................1-49
Torque Lock...................................................2-28
Total Weight on Your Vehicle’s Tires..................4-38
Tow/Haul Mode...............................................4-36
Tow/Haul Mode Button.....................................2-24
Tow/Haul Mode Light.......................................3-34
Towing
Recreational Vehicle.....................................4-29
Towing a Trailer..........................................4-35
Your Vehicle...............................................4-29
Trailer Brakes.................................................4-40
Trailer Wiring Harness.....................................4-45
Trailering Package..........................................4-34
Transfer Case................................................5-50
Transmission
Fluid, Automatic...........................................5-23
Transmission Operation, Automatic....................2-22
Transmission, Transaxle, Transfer Case
Unit Repair Manual......................................7-12
14