change time CHEVROLET CORVETTE 2003 5.G Owner's Guide

If you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new GM
original equipment parts. This way, you will be sure to
have the right wheel, wheel bolts and wheel nuts
for your vehicle.
{CAUTION:
Using the wrong replacement wheels, wheel
bolts or wheel nuts on your vehicle can be
dangerous. It could affect the braking and
handling of your vehicle, make your tires lose
air and make you lose control. You could have
a collision in which you or others could be
injured. Always use the correct wheel, wheel
bolts and wheel nuts for replacement.
Notice:The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance and tire clearance to the
body and chassis.
{CAUTION:
Rust or dirt on a wheel, or on the parts to
which it is fastened, can make wheel nuts
become loose after a time. The wheel could
come off and cause a crash. When you change
a wheel, remove any rust or dirt from places
where the wheel attaches to the vehicle. In an
emergency, you can use a cloth or a paper
towel to do this; but be sure to use a scraper
or wire brush later, if you need to, to get all the
rust or dirt off.
{CAUTION:
Never use oil or grease on studs or the
threads of the wheel nuts. If you do, the wheel
nuts might come loose and the wheel could
fall off, causing a crash.
5-62

Finish Damage
Any stone chips, fractures or deep scratches in the
®nish should be repaired right away.
Minor chips and scratches can be repaired with touch-up
materials avaliable from your dealer or other service
outlets. Larger areas of ®nish damage can be corrected
in your dealer's body and paint shop.
Magnesium Wheel Finish
Notice:Improper paint repair or re®nishing can
cause corrosion damage to a magnesium wheel. See
your dealer if a magnesium wheel needs paint
repair or re®nishing.
Underbody Maintenance
Chemicals used for ice and snow removal and dust
control can collect on the underbody. If these are not
removed, accelerated corrosion (rust) can occur on
the underbody parts such as fuel lines, frame, ¯oor pan
and exhaust system even though they have corrosion
protection.
At least every spring, ¯ush these materials from the
underbody with plain water. Clean any areas where mud
and debris can collect. Dirt packed in close areas of
the frame should be loosened before being ¯ushed.
Your dealer or an underbody car washing system can
do this for you.
Titanium Exhaust System
(Z06 Only)
Time and high performance driving conditions can
cause a color change in titanium exhaust system parts.
This is normal for a titanium surface.
Fiberglass Springs
Notice:Don't use corrosive or acidic cleaning
agents, engine degreasers, aluminum cleaning
agents or other harsh solvents to clean ®berglass
springs; they'll damage the springs.
Chemical Paint Spotting
Some weather and atmospheric conditions can create a
chemical fallout. Airborne pollutants can fall upon and
attack painted surfaces on your vehicle. This damage
can take two forms: blotchy, ring-shaped discolorations,
and small, irregular dark spots etched into the paint
surface.
Although no defect in the paint job causes this, GM will
repair, at no charge to the owner, the surfaces of
new vehicles damaged by this fallout condition within
12 months or 12,000 miles (20 000 km) of purchase,
whichever occurs ®rst.
5-81

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

Additional Program Information
Courtesy Transportation is available during the
Bumper-to-Bumper warranty coverage period, but itis
notpart of the New Vehicle Limited Warranty. A
separate booklet entitled ªWarranty and Owner
Assistance Informationº furnished with each new vehicle
provides detailed warranty coverage information.
Courtesy Transportation is available only at participating
dealers and all program options, such as shuttle
service, may not be available at every dealer. Please
contact you dealer for speci®c information about
availability. All Courtesy Transportation arrangements
will be administered by appropriate dealer personnel.
Canadian Vehicles:For warranty repairs during
the Complete Vehicle Coverage period of the General
Motors of Canada New Vehicle Limited Warranty,
alternative transportation may be available under the
Courtesy Transportation Program. Please consult
your dealer for details.
General Motors reserves the right to unilaterally modify,
change or discontinue Courtesy Transportation at
any time and to resolve all questions of claim eligibility
pursuant to the terms and conditions described
herein at its sole discretion.
Reporting Safety Defects
Reporting Safety Defects to the
United States Government
If you believe that your vehicle has a defect which could
cause a crash or could cause injury or death, you
should immediately inform the National Highway Traffic
Safety Administration (NHTSA), in addition to notifying
General Motors.
If NHTSA receives similar complaints, it may open an
investigation, and if it ®nds that a safety defect exists in
a group of vehicles, it may order a recall and remedy
campaign. However, NHTSA cannot become involved in
individual problems between you, your dealer or
General Motors.
To contact NHTSA, you may either call the Auto Safety
Hotline toll-free at 1-800-424-9393 (or 366-0123 in
the Washington, D.C. area) or write to:
NHTSA, U.S. Department of Transportation
Washington, D.C. 20590
You can also obtain other information about motor
vehicle safety from the hotline.
7-9

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: $60.00
Without Portfolio: Owner's Manual only.
RETAIL SELL PRICE: $20.00
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.
7-11

A
Accessory Power Outlets.................................3-20
Accessory Power Plug.....................................5-84
Activating the Theft-Deterrent Feature................3-76
Active Handling System Light...........................3-37
Active Handling System...................................4-10
Adding Washer Fluid.......................................5-36
Additional Program Information........................... 7-9
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment............................5-84
Adjusting the Speakers (Balance/Fade)......3-65, 3-69
Air Bag System..............................................1-39
Air Bag Off Switch.......................................1-44
How Does an Air Bag Restrain?....................1-42
Servicing Your Air Bag-Equipped Vehicle.........1-47
What Makes an Air Bag In¯ate?....................1-42
What Will You See After an
Air Bag In¯ates?......................................1-43
When Should an Air Bag In¯ate?...................1-42
Where Are the Air Bags?..............................1-40
Air Bag .........................................................3-33
Off Light.....................................................3-33
Readiness Light..........................................3-32
Air Cleaner/Filter, Engine.................................5-18
Air Compressor..............................................5-71
Air Dam, Front...............................................2-19
AM ...............................................................3-77
Antenna, Fixed Mast.......................................3-79
Antenna, Power Antenna Mast Care..................3-79Antennas, Integrated Windshield and Rear
Window......................................................3-80
Anti-lock Brake System (ABS)............................ 4-7
Anti-Lock Brake, System Warning Light..............3-36
Appearance Care............................................5-75
Care of Safety Belts....................................5-77
Chemical Paint Spotting...............................5-81
Cleaning the Inside of Your Vehicle................5-75
Cleaning the Outside of Your Vehicle..............5-78
Fiberglass Springs.......................................5-81
Finish Damage............................................5-81
Titanium Exhaust System..............................5-81
Underbody Maintenance...............................5-81
Vehicle Care/Appearance Materials................5-82
Weatherstrips..............................................5-77
Arming the System.........................................2-16
Ashtrays........................................................3-21
Audio System(s).............................................3-62
Care of Your Cassette Tape Player................3-78
Care of Your CD Player...............................3-79
Care of Your CDs........................................3-79
Fixed Mast Antenna.....................................3-79
Integrated Windshield and Rear Window
Antennas................................................3-80
Power Antenna Mast Care............................3-79
Radio with Cassette.....................................3-63
Radio with CD............................................3-67
Setting the Time..........................................3-62
Theft-Deterrent Feature................................3-75
Trunk-Mounted CD Changer..........................3-71
1

P
Park (P)........................................................2-31
Shifting Into................................................2-31
Shifting Out of............................................2-33
Parking Brake and Automatic Transmission
Park (P) Mechanism Check...........................6-11
Parking Your Vehicle.......................................2-34
Parking.........................................................2-30
Brake........................................................2-30
Over Things That Burn.................................2-34
Part A - Scheduled Maintenance Services............ 6-4
Part B - Owner Checks and Services.................. 6-8
Part C - Periodic MaintenanceInspections..........6-12
Part D - Recommended Fluids and Lubricants....6-14
Part E - Maintenance Record...........................6-16
Passenger Position, Safety Belts.......................1-20
Passing.........................................................4-15
PASS-Key
ž....................................................2-17
Plan Ahead When Possible................................ 7-7
Playing a Cassette Tape..................................3-65
Playing a Compact Disc...................................3-69
Playing the Radio...................................3-63, 3-67
Power Antenna Service..................................... 6-8
Power Steering...............................................4-13
Power...........................................................3-20
Accessory Outlets........................................3-20
Antenna Mast Care......................................3-79
Door Locks.................................................2-10
Electrical System.........................................5-85Power (cont.)
Seat............................................................ 1-2
Steering Fluid.............................................5-35
Windows....................................................2-15
Q
Questions and Answers About Safety Belts.........1-11
R
Racing or Other Competitive Driving..................2-22
Radios..........................................................3-62
Care of Your Cassette Tape Player................3-78
Care of Your CD Player...............................3-79
Care of Your CDs........................................3-79
Radio with Cassette.....................................3-63
Radio with CD............................................3-67
Setting the Time..........................................3-62
Theft-Deterrent............................................3-75
Trunk-Mounted CD Changer..........................3-71
Understanding Reception..............................3-77
Raising the Convertible Top..............................2-53
Reading Lamps..............................................3-16
Rear Axle......................................................5-46
Limited-Slip.................................................4-11
Service......................................................6-13
Rear Storage Area..........................................2-41
Rear Window Defogger....................................3-27
10