2003 CHEVROLET ASTRO CARGO VAN maintenance schedule

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 De®nition
Follow the Short Trip/City Scheduled Maintenance if any
one of these conditions is true for your vehicle:
·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 ®rst). Chassis
Lubrication (or 3 months, whichever occurs ®rst).
Drive Axle Fluid Check.
Every 6,000 Miles (10 000 km):Tire Rotation.
Every 15,000 Miles (25 000 km):Engine Air Cleaner
Filter Inspection. Front Wheel Bearing Repack
(two±wheel drive only) (or at each brake relining,
whichever occurs ®rst). 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
®rst). Engine Accessory Drive Belt Inspection.
These intervals only summarize maintenance services.
Be sure to follow the complete scheduled maintenance
on the following pages.
6-5

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

Short Trip/City 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 B: Owner Checks and Services on page 6-26andPart C: Periodic MaintenanceInspections on
page 6-30.
Footnotes
²The 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, 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.
3,000 Miles (5 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
qLubricate chassis components (or every 3 months,
whichever occurs ®rst).(See footnote #.)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
6,000 Miles (10 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
qLubricate chassis components (or every 3 months,
whichever occurs ®rst).(See footnote #.)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +.)
9,000 Miles (15 000 km)
qChange engine oil and ®lter (or every 3 months,
whichever occurs ®rst).An Emission Control Service.
qLubricate chassis components (or every 3 months,
whichever occurs ®rst).(See footnote #.)
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
6-7

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 B: Owner Checks and Services on page 6-26andPart C: Periodic MaintenanceInspections on
page 6-30.
Footnotes
²The 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.
7,500 Miles (12 500 km)
qChange engine oil and ®lter (or every 12 months,
whichever occurs ®rst).An Emission Control
Service.
qLubricate chassis components (or every 12 months,
whichever occurs ®rst).(See footnote #).
qCheck rear/front axle ¯uid level and add ¯uid as
needed. Check constant velocity joints and axle seals
for leaking.
qRotate tires. See
Tire Inspection and Rotation on
page 5-64for proper rotation pattern and additional
information.(See footnote +).
6-18

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 ªOwner Checks and Servicesº or ªPeriodic Maintenanceº on the following record
pages. Also, you should retain all maintenance receipts.
Maintenance Record
DateOdometer
ReadingServiced By Maintenance Record
6-34

Online Owner Center
The Owner Center is a resource for your GM ownership
needs. You can ®nd your speci®c vehicle information
all in one place.
The Owner Center allows you to:
·Get e-mail service reminders.
·Access information about your speci®c vehicle,
including tips and videos and an electronic
version of this owner's manual. (United States only)
·Keep track of your vehicle's service history and
maintenance schedule.
·Find GM dealers for service nationwide.
·Receive special promotions and privileges only
available to members. (United States only)
Refer to the web for updated information.
To register your vehicle, visit www.MyGMLink.com.
(United States) or My GM Canada within
www.gmcanada.com (Canada).
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 Offices
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 ± Customer Assistance
Chevrolet Motor Division
Chevrolet Customer Assistance Center
P.O. Box 33170
Detroit, MI 48232-5170
1-800-222-1020
1-800-833-2438 (For Text Telephone devices
(TTYs))
Roadside Assistance: 1-800-CHEV-USAž (243-8872)
Fax Number: 313-381-0022
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 speci®cally 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 8:00 AM - 6:00 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. O. 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.
7-12

L
Lamps On Reminder.......................................3-14
Lamps...........................................................3-12
Exterior......................................................3-12
Interior.......................................................3-15
Lap Belt........................................................1-27
Lap-Shoulder Belt...................................1-18, 1-29
LATCH System...............................................1-52
Child Restraints...........................................1-52
Securing a Child Restraint Designed for the
LATCH System........................................1-54
Latches, Seatback............................................ 1-6
Leaving Your Vehicle With the
Engine Running..........................................2-28
Leaving Your Vehicle.......................................2-10
Light.............................................................3-26
Air Bag Readiness.......................................3-26
Anti-Lock Brake System Warning...................3-29
Brake System Warning.................................3-28
Charging System.........................................3-27
Check Gages Warning.................................3-36
Low Fuel Warning.......................................3-37
Malfunction Indicator....................................3-30
Safety Belt Reminder...................................3-26
Security.....................................................3-35
Service All-Wheel-Drive................................3-35
Tow/Haul Mode...........................................3-36Loading Your Vehicle.......................................4-29
Locking Rear Axle............................................ 4-9
Locks............................................................. 2-7
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 De®nition.............................. 6-6
Long Trip/Highway Intervals............................... 6-6
Long Trip/Highway Scheduled Maintenance........6-18
Loss of Control...............................................4-13
Low Fuel Warning Light...................................3-37
Luggage Carrier..............................................2-44
Lumbar........................................................... 1-3
Manual Controls............................................ 1-3
M
Maintenance, Normal Replacement Parts..........5-101
Maintenance Schedule.....................................6-26
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
Exhaust System Inspection...........................6-30
8