1999 CHEVROLET CORVETTE change time

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6-50
CAUTION:
Rust or dirt on the wheel, or on the parts to
which it is fastened, can make the wheel nuts
become loose after a time. The wheel could come
off and cause an accident. When you change a
wheel, remove any rust or dirt from the places
where the wheel attaches to the vehicle. In an
emergency, you can use a cloth or 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 nuts. If you
do, the nuts might come loose. Your wheel could
fall off, causing a serious accident.
CAUTION:
Incorrect wheel nuts or improperly tightened
wheel nuts can cause the wheel to become loose
and even come off. This could lead to an accident.
Be sure to use the correct wheel nuts. If you have
to replace them, be sure to get new GM original
equipment wheel nuts.
NOTICE:
Improperly tightened wheel nuts can lead to
brake pulsation and rotor damage. To avoid
expensive brake repairs, evenly tighten the wheel
nuts in the proper sequence and to the proper
torque specification.

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8-9
Courtesy Rental Vehicle
When your vehicle is unavailable due to overnight
warranty repairs, your dealer may arrange to provide
you with a courtesy rental vehicle or reimburse you for a
rental vehicle you obtained, at actual cost, up to a
maximum of $30.00 per day supported by receipts. This
requires that you sign and complete a rental agreement
and meet state, local and rental vehicle provider
requirements. Requirements vary and may include
minimum age requirements, insurance coverage, credit
card, etc. You are responsible for fuel usage charges and
may also be responsible for taxes, levies, usage fees,
excessive mileage or rental usage beyond the
completion of the repair.
Generally it is not possible to provide a like
-vehicle as a
courtesy rental.
Additional Program Information
Courtesy Transportation is available during the
Bumper
-to-Bumper warranty coverage period,
but it is not part 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 dealerships and all program options, such
as shuttle service, may not be available at every dealer.
Please contact your dealer for specific 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.
General Motors and participating dealerships reserve the
right to deny a rental vehicle to anyone not possessing a
valid motor vehicle operators license in their name,
anyone who is under the influence of alcohol or drugs, or
anyone whose mental or physical abilities are impaired so
as to be unable to operate a motor vehicle safely.
Warranty Information
Your vehicle comes with a separate warranty booklet
that contains detailed warranty information.

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8-13
PUBLICATION FORM
NUMBEROrders will be mailed within 10 days of receipt. Please allow adequate time for postal
service. If further information is needed, write to the address shown below or call
1-800-551-4123. Material cannot be returned for credit without packing slip with return
information within 30 days of delivery. On returns, a re-stocking fee may be applied
against the original order. ORDER TOLL FREE
(NOTE: For Credit Card Holders Only)1-800-551-4123(Monday-Friday 8:00 AM ± 6:00 PM EST)
FAX Orders Only 1-313-865-5927
Service Manual
NOTE: Dealers and Companies please provide dealer or company name, and also the
name of the person to whose attention the shipment should be sent.
Mail completed order form to:
HELM, INCORPORATED
P.O. Box 07130
Detroit, MI 48207
For purchases outside U.S.A. please write to the above address for quotation.
1999$90.00
1999
$50.00
1999
$15.00
1999
$10.00
TOTAL MATERIAL
Michigan Purchasers
U.S. Order Processing$5.00
Canadian Postage
GRAND TOTAL
add 6% sales tax
(See Note Below)
GM-CHE-ORD99 *(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. To cover Canadian postage, add $11.50 plus the
U.S. order processing.
(CUSTOMER'S NAME) (ATTENTION)
(STREET ADDRESSÐNO P.O. BOX NUMBERS)
(CITY) (ZIP CODE)
DAYTIME TELEPHONE NO.(STATE)
AREA CODE
( )P
Check or Money
Order payable to
Helm, Inc. (USA funds
only Ð
do not send cash.)
VISA
Discover
Account
Number:
Expiration
Date mo/yr:
CUSTOMER SIGNATURE
S
ITEM DESCRIPTIONNAME YEAR VEHICLE MODEL
QTY.PRICE
EACH*TOTAL
PRICE1
9
9
9
G
M
H
I
P

T
OA
Y
M
E
N
T
Owner's Manual Without Portfolio Owner's Manual In Portfolio Car & Light Truck
Transmission Unit Repair
MasterCard
Check here if your billing address
is different from your shipping
address shown.
PUBLICATION FORM
NUMBER

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9-3
Security Shade 6-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Soft-Touch Paint Surfaces 6-58 . . . . . . . . . . . . . . . . . . . . . .
Tires 6-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vinyl 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weatherstrips 6-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels 6-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield and Wiper Blades 6-59 . . . . . . . . . . . . . . . . . . .
Cleaning, Wiper Blades 6-59 . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning Your Convertible Top 6-61 . . . . . . . . . . . . . . . . . . . .
Climate Control, Automatic Electronic Dual 3-4 . . . . . . . . . . .
Clock, Setting the 3-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch, Hydraulic 6-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Comfort Controls 3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Disc
Adapter Kits 3
-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changer, Trunk-Mounted 3-23 . . . . . . . . . . . . . . . . . . . . . .
Player 3-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Care 3-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Competitive Driving 4-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Console, Center Storage 2-56 . . . . . . . . . . . . . . . . . . . . . . . . . .
Control of a Vehicle 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convenience 2-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net 2-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net, Cleaning 6-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convertible Top 2-68 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-61 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lowering 2-69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Raising 2-72 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convex Outside Mirror 2-56 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant 5-11, 5-13, 6-23 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Surge Tank 5-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Surge Tank Pressure Cap 6-22 . . . . . . . . . . . . . . . . . . . . . . .
Coolant Heater, Engine 2-25 . . . . . . . . . . . . . . . . . . . . . . . . . . Cooling System 5
-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Corvette Assembly Plant vii. . . . . . . . . . . . . . . . . . . . . . . . . . .
Courtesy Lamps 2
-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Courtesy Transportation 8-8 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control 2-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customer Assistance
For Text Telephone Users 8
-4 . . . . . . . . . . . . . . . . . . . . . . .
Information 8-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Offices 8-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customer Satisfaction Procedure 8-2 . . . . . . . . . . . . . . . . . . . .
Daytime Running Lamps 2-51 . . . . . . . . . . . . . . . . . . . . . . . .
Dead Battery 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defects, Reporting Safety 8-10, 8-11 . . . . . . . . . . . . . . . . . . .
Defensive Driving 4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defogger, Rear Window 3-11 . . . . . . . . . . . . . . . . . . . . . . . . .
Defogging 3-3, 3-7, 3-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defrosting 3-3, 3-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIC Warnings and Messages 2-102 . . . . . . . . . . . . . . . . . . . . .
Dimensions, Vehicle 6-76 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Locks 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Downshifting 2-33 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver Information Center (DIC) 2-92 . . . . . . . . . . . . . . . . . . .
Driver Information Center (DIC) Controls and Displays 2-93
Fuel 2-93 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gages 2-94 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Options 2-97 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trip 2-95 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver Information Center (DIC) Messages
ABS Active 2
-102 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Act Hndling Warming Up 2-102, 4-10 . . . . . . . . . . . . . . . .
Active Handling 2-108 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Before Shift 2-112 . . . . . . . . . . . . . . . . . . . . . . . . . . .