2003 CHEVROLET ASTRO CARGO VAN brake fluid

Long Trip/Highway De®nition
Follow this scheduled maintenanceonlyif 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 ®rst).
Chassis Lubrication (or 12 months, whichever occurs
®rst). Drive Axle Fluid Check. Tire Rotation.
Every 15,000 Miles (25 000 km):Engine Air Cleaner
Filter Inspection. 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 ®rst).
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
®rst). 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

Part D: Recommended Fluids
and Lubricants
Fluids and lubricants identi®ed below by name, part
number or speci®cation may be obtained from your
dealer.
Usage Fluid/Lubricant
Engine OilEngine oil with the American
Petroleum Institute Certi®ed for
Gasoline Engines starburst symbol
of the proper viscosity. To
determine the preferred viscosity for
your vehicle's engine, see
Engine
Oil on page 5-15.
Engine Coolant50/50 mixture of clean, drinkable
water and use only
DEX-COOL
žCoolant. SeeEngine
Coolant on page 5-28.
Hydraulic Brake
SystemDelco Supreme 11 Brake Fluid or
equivalent DOT-3 brake ¯uid.
Windshield
Washer SolventGM Optikleen
žWasher Solvent or
equivalent.
Parking Brake
Cable GuidesChassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242, or equivalent) or
lubricant meeting requirements of
NLGI #2, Category LB or GC-LB.
Usage Fluid/Lubricant
Power Steering
SystemGM Power Steering Fluid (GM Part
No. U.S. 1052884, in Canada
993294, or equivalent).
Automatic
TransmissionDEXRON
ž-III Automatic
Transmission Fluid.
Key Lock
CylindersMulti-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474, or equivalent).
Chassis
LubricationChassis Lubricant (GM Part No.
U.S. 12377985, in Canada
88901242, or equivalent) or
lubricant meeting requirements of
NLGI #2, Category LB or GC-LB.
Front Wheel
BearingsWheel bearing lubricant meeting
requirements of NLGI #2, Category
GC or GC-LB (GM Part No. U.S.
1051344, in Canada 993037, or
equivalent).
6-32

A
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.........................7-10
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 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 Makes an Air Bag In¯ate?....................1-67
What Will You See After an Air Bag In¯ates?......1-68
When Should an Air Bag In¯ate?...................1-66
Where Are the Air Bags?..............................1-64
Air Bag .........................................................3-26
Readiness Light..........................................3-26
Air Cleaner/Filter, Engine.................................5-24
All-Wheel Drive (AWD) System.........................2-26
All-Wheel Drive...............................................5-52
All-Wheel-Drive Service Light............................3-35
AM-FM Radio.................................................3-39AM ...............................................................3-50
Antenna, Fixed Mast.......................................3-50
Anti-Lock Brake, System Warning Light..............3-29
Anti-lock Brake System..................................... 4-7
Appearance Care............................................5-83
Care of Safety Belts....................................5-86
Chemical Paint Spotting...............................5-89
Cleaning the Inside of Your Vehicle................5-83
Cleaning the Outside of Your Vehicle..............5-86
Finish Damage............................................5-88
Sheet Metal Damage...................................5-88
Underbody Maintenance...............................5-89
Vehicle Care/Appearance Materials................5-89
Weatherstrips..............................................5-86
Ashtrays........................................................3-17
Audio System(s).............................................3-38
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 CD............................................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
1

Audio System(s) (cont.)
Automatic Headlamp System............................3-13
Automatic Transmission Check..........................6-27
Automatic Transmission Shift Lock Control
System Check.............................................6-28
Automatic Transmission...................................5-25
Fluid..........................................................5-25
Operation...................................................2-23
B
Backing Up....................................................4-38
Battery Replacement......................................... 2-6
Battery Run-Down Protection............................3-16
Battery..........................................................5-46
Before Leaving on a Long Trip.........................4-21
Bench Seat............................................1-11, 1-57
Body Lubrication Service..................................6-27
Brake Adjustment............................................5-45
Brake Fluid....................................................5-42
Brake Pedal Travel.........................................5-45
Brake Wear...................................................5-45
Brake............................................................2-26
Parking......................................................2-26
System Inspection.......................................6-31
System Warning Light..................................3-28
Brakes..........................................................5-42
Braking in Emergencies..................................... 4-9Braking........................................................... 4-6
Break-In, New Vehicle.....................................2-19
Bucket Seats, Rear.........................................1-12
Bulb Replacement...........................................5-55
Front Turn Signal Lamps..............................5-59
Halogen Bulbs............................................5-55
Headlamps.................................................5-55
Replacement Bulbs......................................5-61
Taillamps....................................................5-60
Buying New Tires...........................................5-66C
California Fuel.................................................. 5-6
Canada ± Customer Assistance.......................... 7-5
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Canceling the Sliding Door Security Lock...........2-12
Capacities and Speci®cations............................5-99
Carbon Monoxide...........................4-24, 4-31, 2-30
Care of.........................................................5-86
Safety Belts................................................5-86
Your CD Player...........................................3-50
Your 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
2

Checking Brake Fluid......................................5-43
Checking Coolant............................................5-29
Checking Engine Oil........................................5-15
Checking Things Under the Hood......................5-11
Checking Your Restraint Systems......................1-71
Check...........................................................3-30
Engine Light...............................................3-30
Gages Warning Light...................................3-36
Chemical Paint Spotting...................................5-89
Child Restraints..............................................1-44
Child Restraint Systems...............................1-44
Infants and Young Children...........................1-38
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-52
Older Children.............................................1-35
Securing a Child Restraint Designed for the
LATCH System........................................1-54
Securing a Child Restraint in a Center Seat
Position..................................................1-57
Securing a Child Restraint in a Rear Outside
Seat Position...........................................1-54
Securing a Child Restraint in the Right Front
Seat Position...........................................1-59
Top Strap Anchor Location............................1-50
Top Strap...................................................1-48
Where to Put the Restraint...........................1-47
Cigarette Lighter.............................................3-17
Cleaning Aluminum Wheels..............................5-88
Cleaning Exterior Lamps/Lenses.......................5-86Cleaning Fabric/Carpet....................................5-83
Cleaning Glass Surfaces..................................5-85
Cleaning Interior Plastic Components.................5-85
Cleaning Leather............................................5-85
Cleaning the Top of the Instrument Panel...........5-85
Cleaning the Windshield and Wiper Blades.........5-87
Cleaning Tires................................................5-88
Cleaning Vinyl................................................5-85
Cleaning........................................................5-83
Inside of Your Vehicle..................................5-83
Outside of Your Vehicle................................5-86
Underbody Maintenance...............................5-89
Weatherstrips..............................................5-86
Climate Control System...................................3-18
Rear Air Conditioning System........................3-20
Rear Heating System...................................3-19
Rear..........................................................3-21
Compact Disc Messages..................................3-45
Compact Spare Tire........................................5-82
Composite Headlamps.....................................5-56
Control of a Vehicle.......................................... 4-6
Convenience Net............................................2-45
Coolant.........................................................3-30
Engine Temperature Gage............................3-30
Heater, Engine............................................2-22
Cooling System..............................................5-33
Cruise Control................................................3-10
Current and Past Model Order Forms................7-12
3

How to Add Coolant to the Coolant
Recovery Tank............................................5-34
How to Add Coolant to the Radiator..................5-37
How to Add Fluid............................................5-27
How to Check Lubricant...................................5-53
How to Check Power Steering Fluid..................5-40
How to Check........................................5-25, 5-64
How to Inspect the Engine Air Cleaner/Filter.......5-24
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-18
Hydroplaning..................................................4-18
I
If No Steam Is Coming From Your Engine..........5-32
If Steam Is Coming From Your Engine...............5-31
If the Light Is Flashing.....................................3-32
If the Light Is On Steady.................................3-32
If You Are Stuck in Sand, Mud, Ice or Snow.......4-28
If You Do Decide To Pull A Trailer.....................4-32
If You're Caught in a Blizzard...........................4-26
Ignition Positions.............................................2-19
Ignition Transmission Lock Check......................6-29
Infants and Young Children, Restraints...............1-38
In¯ation Ð Tire Pressure.................................5-64
Inspection......................................................6-31
Brake System.............................................6-31
Engine Cooling System................................6-30Inspection (cont.)
Exhaust System..........................................6-30
Fuel System...............................................6-30
Part C - Periodic Maintenance.......................6-30
Steering, Suspension and Front Drive Axle
Boot and Seal.........................................6-30
Throttle System...........................................6-31
Transfer Case and Front Axle
(All-Wheel Drive)......................................6-31
Installing a Garage Door Opener.......................2-40
Instrument Panel Brightness Control..................3-15
Instrument Panel Fuse Block............................5-93
Instrument Panel.............................................3-24
Cluster.......................................................3-24
Overview..................................................... 3-2
Interior Lamps................................................3-15
J
Jump Starting.................................................5-47
K
Key Lock Cylinders Service..............................6-27
Keyless Entry System....................................... 2-4
Keys............................................................... 2-2
7

Operation Tips................................................3-22
Other Warning Devices...................................... 3-5
Outlet Adjustment............................................3-22
Outside.........................................................2-33
Convex Mirror.............................................2-33
Manual Mirror.............................................2-32
Power Mirrors.............................................2-32
Overhead Console..........................................2-39
Overseas ± Customer Assistance........................ 7-5
Owners, Canadian............................................... ii
Owner's Information........................................7-12
P
Park (P)........................................................2-29
Shifting Out of............................................2-29
Parking Brake and Automatic Transmission Park
(P)
Mechanism Check.......................................6-29
Parking on Hills..............................................4-39
Parking.........................................................2-26
Brake........................................................2-26
Over Things That Burn.................................2-30
Park(P).........................................................2-27
Shifting Into................................................2-27
Part A - Scheduled Maintenance Services............ 6-4
Part B - Owner Checks and Services................6-26Part C - Periodic MaintenanceInspections..........6-30
Part D - Recommended Fluids and Lubricants....6-32
Part E - Maintenance Record...........................6-34
Passing.................................................4-12, 4-38
Passlock
ž......................................................2-18
Payload.........................................................4-31 .
Plan Ahead When Possible................................ 7-8
Playing a Compact Disc...................................3-43
Playing the Radio...................................3-39, 3-41
Power Steering................................................ 4-9
Power...........................................................3-16
Accessory Outlets........................................3-16
Door Locks.................................................. 2-8
Electrical System.........................................5-92
Seat............................................................ 1-3
Steering Fluid.............................................5-40
Windows....................................................2-17
Programmable Automatic Door Locks.................. 2-9
Programming the HomeLink Transmitter.............2-35
Q
Questions and Answers About Safety Belts.........1-17
10

Tires.............................................................5-63
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
In¯ation Ð 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 Strap Anchor Location...............................1-50
Top Strap......................................................1-48
Torque Lock...................................................2-29
Total Weight on Your Vehicle's Tires..................4-35
Tow/Haul Mode Button.....................................2-25
Tow/Haul Mode Light.......................................3-36
Towing..........................................................4-29
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................................................5-52Transmission Operation, Automatic....................2-23
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-11
Transmission..................................................5-25
Fluid, Automatic...........................................5-25
Transportation Options...................................... 7-9
Trip Odometer................................................3-25
Turn and Lane Change Signals.......................... 3-6
Turn Signal/Multifunction Lever........................... 3-6
Turn Signals When Towing a Trailer..................4-38
U
Underbody Flushing Service.............................6-29
Underhood Fuse Block....................................5-96
Understanding Radio Reception........................3-50
Uniform Tire Quality Grading............................5-67
United States ± Customer Assistance.................. 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
ž...........................................2-37
14