maintenance schedule CHEVROLET ASTRO 2003 Owner's Manual

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

Part E: Maintenance Record
After the scheduled services are performed, record the date, odometer reading and who performed the service and
any additional information from “Owner Checks and Services”
or “Periodic Maintenance” on the following record
pages. Also, you should retain all maintenance receipts.
Maintenance Record
6-34

Online Owner Center
The Owner Center at MyGMLink is a resource for your
GM ownership needs. You can find your specific
vehicle information all in one place.
The Owner Center allows you to:
Get e-mail service reminders.
Access information about your specific vehicle.
including tips and videos and an electronic
version of this owner’s manual.
Keep track of your vehicle’s service history and
Find GM dealers for service nationwide.
maintenance
schedule.
Receive special promotions and privileges only
available to MyGMLink members.
Refer to the web for updated information.
To register your vehicle visit www.MyGMLink.com.
Customer Assistance for Text
Telephone (TTY) Users
To assist customers who are deaf, hard of hearing, or
speech-impaired and who use Text Telephones
(TTYs),
Chevrolet has TTY equipment available at its Customer
Assistance Center. Any TTY user can communicate
with Chevrolet by dialing: 1 -800-833-CHEV (2438).
(TTY users in Canada can dial 1-800-263-3830.)
Customer Assistance Off ices
Chevrolet encourages customers to call the toll-free
number for assistance. If a U.S. customer wishes
to write to Chevrolet, the letter should be addressed to
Chevrolet’s Customer Assistance Center.
United States
Chevrolet Motor Division
Chevrolet Customer Assistance Center
P.O. Box 33170
Detroit, MI 48232-51
70
1-800-222-1 020
1-800-833-2438 (For Text Telephone devices (TTYs))
Roadside Assistance: 1 -800-CHEV-USA@ (243-8872)
Fax Number: 31 3-381 -0022
From Puerto Rico:
1-800-496-9992 (English)
1-800-496-9993 (Spanish)
Fax Number: 31 3-381 -0022
From
US. Virgin Islands:
Fax Number: 31 3-381 -0022
1-800-496-9994
7-4

Service Bulletins
Service Bulletins give technical service information needed to knowledgeably service General Motors cars
and trucks. Each bulletin contains instructions to
assist in the diagnosis and service of your vehicle.
In Canada, information pertaining to Product Service
Bulletins can be obtained by contacting your General
Motors dealer or by calling 1-800-GM-DRIVE
(1 -800-463-7483).
Owner’s Information
Owner publications are written specifically for owners
and intended to provide basic operational information
about the vehicle. The owner’s manual will include
the Maintenance Schedule for all models.
In-Portfolio: Includes a Portfolio, Owner’s Manual, and
Warranty Booklet.
RETAIL SELL PRICE:
$35.00
Without Portfolio: Owner’s Manual only.
RETAIL SELL PRICE:
$25.00
Current and Past Model Order Forms
Service Publications are available for current and
past model GM vehicles. To request an order form,
please specify year and model name of the vehicle.
ORDER TOLL FREE: 1-800-551-4123
Monday-Friday 8:OO
AM - 6:OO PM
Eastern Time
For Credit Card Orders Only
(VISA-Mastercard-Discover), visit Helm, Inc.
on the
World Wide Web at: www.helminc.com
Or you can write to:
Helm, Incorporated
P.
0. Box 07130
Detroit, MI 48207
Prices are subject to change without notice and without
incurring obligation. Allow ample time for delivery.
Note to Canadian Customers: All listed prices are
quoted in
U.S. funds. Canadian residents are to make
checks payable
in U.S. funds.
7-1 2

Loading Your Vehicle ....................................... 4-29
Locks Door
........................................................... 2-7
Front Doors
.................................................. 2-8
Leaving Your Vehicle
.................................... 2-10
Power Door
.................................................. 2-8
Programmable Automatic Door Locks
............... 2-9
Long Trip/Highway Definition
.............................. 6-6
Long Trip/Highway Intervals
............................... 6-6
Long Trip/Highway Scheduled Maintenance
........ 6-1 8
Loss
of Control ............................................... 4-1 3
Low Fuel Warning Light
................................... 3-37
Lumbar
Luggage
Carrier
.............................................. 2-44
Manual Controls
............................................ 1-3
M
Maintenance. Normal Replacement Parts .......... 5-1 01
Maintenance Schedule At Each Fuel Fill
......................................... 6-26
At Least Once a Month
................................ 6-26
At Least Once a Year
.................................. 6-27
At Least Twice a Year
.................................. 6-26
Brake System Inspection
.............................. 6-31
Engine Cooling System Inspection
................. 6-30
Fuel System Inspection
................................ 6-30
How This Section is Organized
....................... 6-3
Exhaust System
Inspection
........................... 6-30 Maintenance Schedule (cont.)
Introduction
.................................................. 6-2
Long Trip/Highway Scheduled Maintenance
..... 6-18
Maintenance Requirements
............................. 6-2
Part A
. Scheduled Maintenance Services ......... 6-4
Part B
. Owner Checks and Services ............. 6-26
Part C
. Periodic Maintenance Inspections ...... 6-30
Part D
- Recommended Fluids and
Lubricants
............................................... 6-32
Part E
. Maintenance Record ........................ 6-34
Selecting the Right Schedule
.......................... 6-5
Short Trip/City Scheduled Maintenance
............. 6-7
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection
.......................... 6-30
Using Your
................................................... 6-4
Your Vehicle and the Environment
................... 6-2
Maintenance When Trailer Towing
..................... 4-40
Throttle
System Inspection
............................ 6-31
Making Turns
................................................. 4-38
Malfunction Indicator Light
................................ 3-30
Manual Lumbar Controls
.................................... 1-3
Manual Seats
................................................... 1-2
Manual Windows
........................................ 2-16
Mirrors Manual Rearview Mirror
................................ 2-32
Outside Convex Mirror
................................. 2-33
Outside Manual Mirrors
................................ 2-32
Outside Power Mirrors
.................................. 2-32
Model Reference
............................................ vi
8

Matching Transmitter(s) to Your Vehicle ................. 2-5
Mexico, Central America and Caribbean
Islands/Countries (Except Puerto Rico and
U.S. Virgin Islands) ........................................ 7-5
MyGMLink.com
................................................ 7-4
New Vehicle Break-In
...................................... 2-19
Normal Maintenance Replacement Parts
........... 5-101
Odometer
............................................
Off-Road Recovery ................................
Oil
... 3-25
... 4-1 1
Engine ....................................................... 5-1 5
Pressure Gage
............................................ 3-34
Older Children, Restraints
................................ 1-35
Online Owner Center
........................................ 7-4
Operation Tips
................................................ 3-22
Other Warning Devices
...................................... 3-5
Outlet Adjustment
............................................ 3-22
Outside Convex Mirror
............................................. 2-33
Manual Mirrors
............................................ 2-32
Power Mirrors
............................................. 2-32
Overhead Console
.......................................... 2-39
Owners, Canadian
............................................... ii
Owner’s Information
........................................ 7-1 2
P
Park (P)
Shifting Into
............................. ........ 2-27
Shifting Out
of ......................... ............ 2-29
Brake
..................................................... 2-26
Parking
Over Things That Burn
................................. 2-30
Park (P) Mechanism Check
........................... 6-29
Parking Brake
and Automatic Transmission
Parking on Hills
........................................ 4-39 -39
Part A
- Scheduled Maintenance Services ............... 6-4
Part B
- Owner Checks and Services ................... 6-26
Part D
- Recommended Fluids and Lubricants ....... 6-32
Part
E - Maintenance Record ............................. 6-34
Passing
................................................. 4-12, 4-38
Passlock@
...................................................... 2-18
Payload
......................................................... 4-31
Plan Ahead When Possible
................................ 7-8
Playing the Radio
................................... 3-39, 3-41
Power
Accessory Outlets
........................................ 3-16
Door Locks
.................................................. 2-8
Electrical System
......................................... 5-92
Seat
............................................................ 1-3
Windows .................................................... 2-17
Part
C - Periodic
Maintenance Inspections ............ 6-30
Playing a Compact Disc
................................... 3-43
Steering Fluid
............................................. 5-40 9

Restraint System Check ..................... ... 6-26
Checking Your Restraint Systems
..... ... 1-71
Replacing Restraint System Parts
After a Crash
....................................... 1-71
Checking
.................................................... 1-71
Restraints, Head
............................................... 1-5
Retained Accessory Power (RAP)
...................... 2-20
Right Front Passenger Position, Safety Belts
......... 1-27
Roadside Assistance Program
....................................... 7-6
Rocking Your Vehicle To Get It Out
................... 4-28
Running Your Engine While You Are Parked
....... 2-31
Restraint Systems
Replacing Parts
........................................... 1-71
Safety Belt
Safety Belts
Reminder Light
... .................................. 3-26
Care
of ...................................................... 5-86
Center Passenger Position
............................ 1-27
Driver Position
............................................ 1-1 8
How to Wear Safety Belts Properly ................ 1-18
Questions and Answers About Safety Belts
........ 1-1 7
Rear Safety Belt Comfort Guides for
Children and Small Adults
......................... 1-32
Rear Seat Passengers
................................. 1-29
Right Front Passenger Position
...................... 1-27 Safety Belts
(cont.)
Safety Belt Extender
.................................... 1-34
Safety Belts Are for Everyone
....................... 1-13
Safety Belt
Use During Pregnancy
................. 1-26
Safety Chains
................................................. 4-36
Safety Warnings and Symbols
.............................. III
Sealed Beam Headlamp .................................. 5-55
Seatback Latches ............................................. 1-6
Seats Bench Seat
.......... ..........., ........ 1-11
Bucket Seats, Rear
................... ........ 1-12
Head Restraints
............................................ 1-5
Manual
........................................................ 1-2
Manual Lumbar
............................................. 1-3
Power Seat
.................................................. 1-3
Rear Seat Operation
...................................... 1-7
Reclining Seatbacks
...................................... 1-4
Seatback Latches
.......................................... 1-6
Center Seat Position
.................................... 1-57
Designed for the LATCH System
................... 1-54
Rear Outside Seat Position ........................... 1-54
Right Front Seat Position
.............................. 1-59
Security Light
................................................. 3-35
Selecting the Right Schedule, Maintenance
.......... 6-5
Selecting the Fan Speed
.................................. 3-20
Service
........................................................... 5-3
Adding Equipment to the Outside of
Your Vehicle
.............................................. 5-4
All-Wheel-Drive Light
.................................... 3-35
...
Securing a Child Restraint
11

Service (cont.)
Doing Your Own Work
................................... 5-3
Engine Soon Light
....................................... 3-30
Publications Ordering Information
................... 7-1 1
Sewice Bulletins ............................................. 7-1 2
Service Engine Soon Light in the United States
or Check Engine Light
in Canada
.................................................. 3-30
Service Manuals
............................................. 7-1 1
Servicing Your Air Bag-Equipped Vehicle ............ 1-69
Setting Preset Stations
............................ 3-39, 3-42
Setting the Temperature
................................... 3-20
Setting the Time
Radios with HR and MN Buttons
................... 3-38
Radios with the Set Button
........................... 3-38
Setting the Tone (Bassnreble)
.................. 3-40, 3-43
Shifting Into Park (P)
....................................... 2-27
Sheet
Metal Damage
....................................... 5-88
Shifting Out of Park (P)
................................... 2-29
Short Trip/City Definition
.................................... 6-5
Short TripKity Intervals
..................................... 6-5
Short Trip/City Scheduled Maintenance
...... ... 6-7
Shoulder Belt Height Adjuster
............... ..... 1-20
Skidding
........................................ ......... 4-13
Sliding Door Security Lock
............................... 2-1 1
Sliding Side Door
............................................ 2-10
Some Other Rainy Weather Tips
....................... 4-18
Spare Tire Check
............................................ 6-27 Special Fabric Cleaning
Problems
..................... 5-84
Specifications, Capacities
................................. 5-99
Speedometer
.................................................. 3-25
Steering
.......................................................... 4-9
Starter Switch
Check
....................................... 6-28
Starting Your Engine
....................................... 2-21
Steering in Emergencies
.................................. 4-10
Steering, Suspension and Front Drive Axle
Boot and Seal Inspection .............................. 6-30
Steering Tips
................................................... 4-9
Storage Areas
................................................ 2-38
Convenience Net
......................................... 2-45
Luggage Carrier
.......................................... 2-44
Overhead Console
....................................... 2-39
Storing a Flat or Spare Tire and
Tools ............... 5-81
Stuck in Sand, Mud, Ice or Snow
...................... 4-28
Sun Visors
..................................................... 2-17
Sunglasses Storage Compartment
..................... 2-44
Taillamps
....................................................... 5-60
Theft.Deterrent. Radio
..................................... 3-47
Theft-Deterrent Systems
................................... 2-18
Passlock@
............................................... 2-18
Throttle System Inspection
........................... 6-31
Tilt Wheel
........................................................ 3-5
Tire Inflation Check
......................................... 6-26
12