2003 CHEVROLET CORVETTE oil change

Here are some cleaning tips:
·Always read the instructions on the cleaner label.
·Clean up stains as soon as you can ± before
they set.
·Carefully scrape off any excess stain.
·Use a clean cloth or sponge, and change to a clean
area often. A soft brush may be used if stains are
stubborn.
·If a ring forms on fabric after spot cleaning, clean
the entire area immediately or it will set.
Cleaning Coated Moldings
These moldings are around the hatch opening in the
rear area.
·When lightly soiled, wipe with a sponge or soft
lint-free cloth dampened with water.
·When heavily soiled, use warm soapy water.
Cleaning Leather
Use a soft cloth with lukewarm water and a mild soap or
saddle soap and wipe dry with a soft cloth. Then, let
the leather dry naturally. Do not use heat to dry.
·For stubborn stains, use a leather cleaner.
·Neveruse oils, varnishes, solvent-based or abrasive
cleaners, furniture polish or shoe polish on leather.
·Soiled or stained leather should be cleaned
immediately. If dirt is allowed to work into the ®nish,
it can harm the leather.
Cleaning the Top of the Instrument
Panel
Use only mild soap and water to clean the top surfaces
of the instrument panel. Sprays containing silicones
or waxes may cause annoying re¯ections in the
windshield and even make it difficult to see through the
windshield under certain conditions.
5-76

Maintenance Schedule
Introduction
Important: Keep engine oil at the proper level and
change as recommended.
Have you purchased the GM Protection Plan? The Plan
supplements your new vehicle warranties. See your
Warranty and Owner Assistance booklet or your dealer
for details.
Your Vehicle and the Environment
Proper vehicle maintenance not only helps to keep your
vehicle in good working condition, but also helps the
environment. Improper vehicle maintenance can
even affect the quality of the air we breathe. Improper
¯uid levels or the wrong tire in¯ation can increase
the level of emissions from your vehicle. To help protect
our environment, and to keep your vehicle in good
condition, be sure to maintain your vehicle properly.
Maintenance Requirements
Maintenance intervals, checks, inspections and
recommended ¯uids and lubricants as prescribed in this
manual are necessary to keep your vehicle in good
working condition. Any damage caused by failure
to follow scheduled maintenance may not be covered by
warranty.
6-2

Part A: Scheduled Maintenance
Services
This part contains engine oil scheduled maintenance
which explains the engine oil life system and how
it indicates when to change the engine oil and ®lter.
Also, listed are scheduled maintenance services which
are to be performed at the mileage intervals speci®ed.
Using Your Maintenance Schedule
We at General Motors want to keep your vehicle in good
working condition. But we don't know exactly how
you'll drive it. You may drive short distances only a few
times a week. Or you may drive long distances all
the time in very hot, dusty weather. You may use your
vehicle in making deliveries. Or you may drive it to
work, to do errands or in many other ways.
Because of the different ways people use their vehicles,
maintenance needs may vary. You may need more
frequent checks and replacements. So please read the
following and note how you drive. If you have
questions on how to keep your vehicle in good condition,
see your dealer.
This part tells you the maintenance services you should
have done and when to schedule them.When you go to your dealer for your service needs,
you'll know that GM-trained and supported service
people will perform the work using genuine GM parts.
The proper ¯uids and lubricants to use are listed in
Part D. Make sure whoever services your vehicle uses
these. All parts should be replaced and all necessary
repairs done before you or anyone else drives the
vehicle.
This schedule is for vehicles that:
·carry passengers and cargo within recommended
limits. You will ®nd these on your vehicle's
Tire-Loading Information label. See
Loading Your
Vehicle on page 4-33.
·are driven on reasonable road surfaces within legal
driving limits.
·use the recommended fuel. SeeGasoline Octane
on page 5-4
.
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.
6-4

SeePart B: Owner Checks and Services on page 6-8,Part C: Periodic MaintenanceInspections on page 6-12andPart D: Recommended Fluids and Lubricants on
page 6-14.
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 emissions 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.
Engine Oil Scheduled Maintenance
Change engine oil and ®lter as indicated by the
Engine Oil Life System (or every 12 months,
whichever occurs ®rst). Reset the system.
Your vehicle has a computer system that lets you know
when to change the engine oil and ®lter. This is
based on engine revolutions and engine temperature,
and not on mileage. Based on driving conditions,
the mileage at which an oil change will be indicated can
vary considerably. For the oil life system to work
properly, you must reset the system every time the oil is
changed.When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE OIL SOON message will come
on. Change your oil as soon as possible within the
next two times you stop for fuel. It is possible that, if you
are driving under the best conditions, the oil life
system may not indicate that an oil change is necessary
for over a year. However, your engine oil and ®lter
must be changed at least once a year and at this time
the system must be reset. Your dealer has GM-trained
service people who will perform this work using
genuine GM parts and reset the system.
It is also important to check your oil regularly and keep
it at the proper level.
If the system is ever reset accidentally, you must
change your oil at 3,000 miles (5 000 km) since your
last oil change. Remember to reset the oil life system
whenever the oil is changed. SeeEngine Oil on
page 5-13for information on resetting the system.
Use engine oil meeting the GM Standard GM4718M.
An Emission Control Service.
See the mileage intervals following for additional
services that may be performed with an engine oil
change. After the services are performed, record the
date, odometer reading and who performed the service
on the maintenance record pages in Part E of this
schedule.
6-5

15,000 Miles (25 000 km)
qInspect engine air cleaner ®lter. If necessary, replace
the ®lter. If vehicle is driven in dusty/dirty conditions,
inspect ®lter at every engine oil change. See
Engine Air Cleaner/Filter on page 5-18for more
information.An Emission Control Service. (See
footnote ².)
30,000 Miles (50 000 km)
qReplace engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.An Emission Control Service.
45,000 Miles (75 000 km)
qInspect engine air cleaner ®lter. If necessary, replace
the ®lter. If vehicle is driven in dusty/dirty conditions,
inspect ®lter at every engine oil change. See
Engine Air Cleaner/Filter on page 5-18for more
information.An Emission Control Service. (See
footnote ².)
50,000 Miles (83 000 km)
qChange automatic transmission ¯uid and ®lter if the
vehicle is mainly driven under one or more of these
conditions:
þ In heavy city traffic where the outside
temperature regularly reaches 90ÉF (32ÉC) or
higher.
þ In hilly or mountainous terrain.
þ Uses such as high performance operation.
If you do not use your vehicle under any of these
conditions, change the ¯uid and ®lter at
100,000 miles (166 000 km). Manual
transmission ¯uid doesn't require change.
60,000 Miles (100 000 km)
qReplace engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.An Emission Control Service.
6-6

75,000 Miles (125 000 km)
qInspect engine air cleaner ®lter. If necessary, replace
the ®lter. If vehicle is driven in dusty/dirty conditions,
inspect ®lter at every engine oil change. See
Engine Air Cleaner/Filter on page 5-18for more
information.An Emission Control Service. (See
footnote ².)
90,000 Miles (150 000 km)
qReplace engine air cleaner ®lter. SeeEngine Air
Cleaner/Filter on page 5-18for more information.An Emission Control Service.
100,000 Miles (166 000 km)
qReplace spark plugs.An Emission Control Service.
qInspect spark plug wires.An Emission Control
Service.
qChange automatic transmission ¯uid and ®lter.
Manual transmission ¯uid doesn't required change.
150,000 Miles (240 000 km)
qDrain, ¯ush and re®ll the cooling system (or every
60 months since last service, whichever occurs
®rst). See
Engine Coolant on page 5-23for what to
use.An Emission Control Service.
qInspect engine accessory drive belt.An Emission
Control Service.
6-7

Audio System(s) (cont.)
Understanding Radio Reception.....................3-77
Automatic Transmission Check........................... 6-9
Automatic Transmission Shift Lock Control
System Check.............................................6-10
Automatic Transmission...................................2-21
Fluid..........................................................5-20
Operation...................................................2-24
B
Battery Replacement......................................... 2-8
Battery Run-Down Protection............................3-17
Battery..........................................................5-40
Before Leaving on a Long Trip.........................4-24
Body Lubrication Service................................... 6-9
Brake Fluid....................................................5-37
Brake Wear...................................................5-39
Brake............................................................2-30
Parking......................................................2-30
System Inspection.......................................6-13
System Warning Light..................................3-35
Brakes..........................................................5-37
Braking in Emergencies..................................... 4-8
Braking........................................................... 4-6
Break-In, New Vehicle.....................................2-19
Bulb Replacement...........................................5-47
Back-Up Lamps...........................................5-51
Halogen Bulbs............................................5-47Bulb Replacement (cont.)
Headlamps.................................................5-47
Replacement Bulbs......................................5-51
Taillamps and Turn Signal Lamps..................5-49
Buying New Tires...........................................5-59
C
California Fuel.................................................. 5-5
Canada ± Customer Assistance.......................... 7-4
Canadian Owners................................................ ii
Canadian Roadside Assistance........................... 7-7
Capacities and Speci®cations............................5-92
Carbon Monoxide...................4-27, 4-35, 2-11, 2-35
Care of.........................................................5-77
Safety Belts................................................5-77
Your Cassette Tape Player............................3-78
Your CD Player...........................................3-79
Your CDs ...................................................3-79
Cargo Cover..................................................2-42
Cassette Tape Messages.................................3-66
Cassette Tape Player Service............................. 6-8
CD Adapter Kits.............................................3-66
CD Changer, Trunk-Mounted............................3-71
Center Console Storage Area...........................2-39
Chains, Tires..................................................5-64
Check Engine Light.........................................3-38
Checking Coolant............................................5-25
Checking Engine Oil........................................5-13
2

Fuel (cont.)
Fuels in Foreign Countries.............................. 5-6
Gage.........................................................3-42
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-5
System Inspection.......................................6-13
Fuses...........................................................5-86
Fuses and Circuit Breakers...........................5-86
Windshield Wiper.........................................5-85
G
Gage............................................................3-42
Check Gages Warning Light..........................3-42
Engine Coolant Temperature.........................3-38
Engine Oil Pressure.....................................3-41
Fuel..........................................................3-42
Speedometer..............................................3-31
Tachometer.................................................3-31
Voltmeter Gage...........................................3-34
Gasoline......................................................... 5-4
Octane........................................................ 5-4
Speci®cations............................................... 5-5
Glove Box.....................................................2-39
GM Mobility Program for Persons with
Disabilities.................................................... 7-5
H
Hatch/Trunk Lid Release..................................2-12
Hatch/Trunk...................................................2-11
Hazard Warning Flashers................................... 3-4
Headlamp High/Low-Beam Changer.................... 3-7
Headlamp Wiring............................................5-85
Headlamps Doors...........................................3-12
Headlamps on Reminder................................... 3-7
Headlamps....................................................5-47
Bulb Replacement.......................................5-47
Halogen Bulbs............................................5-47
Head-Up Display (HUD)...................................3-17
Highway Hypnosis...........................................4-25
Hill and Mountain Roads..................................4-25
Hood............................................................5-10
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-5
How to Add Coolant to the Coolant
Surge Tank.................................................5-31
How to Add Fluid............................................5-22
How to Check and Add Fluid............................5-23
How to Check Lubricant...................................5-46
How to Check Power Steering Fluid..................5-35
How to Check................................5-20, 5-21, 5-56
How to Remove and Replace the
Floor Mats..................................................2-40
How to Use This Manual...................................... ii
6