1999 CHEVROLET VENTURE light

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6-44 Uniform Tire Quality Grading
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, which grades tires by
treadwear, traction and temperature performance. (This
applies only to vehicles sold in the United States.) The
grades are molded on the sidewalls of most passenger
car tires. The Uniform Tire Quality Grading system does
not apply to deep tread, winter
-type snow tires,
space
-saver or temporary use spare tires, tires with
nominal rim diameters of 10 to 12 inches (25 to 30 cm),
or to some limited
-production tires.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to Federal safety
requirements and additional General Motors Tire
Performance Criteria (TPC) standards.Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course. For
example, a tire graded 150 would wear one and a half
(1 1/2) times as well on the government course as a tire
graded 100. The relative performance of tires depends
upon the actual conditions of their use, however, and
may depart significantly from the norm due to variations
in driving habits, service practices and differences in
road characteristics and climate.
Traction -- AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades represent the tire's ability to stop
on wet pavement as measured under controlled
conditions on specified government test surfaces of
asphalt and concrete. A tire marked C may have poor
traction performance. Warning: The traction grade
assigned to this tire is based on straight
-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.

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6-55
GM Vehicle Care/Appearance Materials
PART NUMBERSIZEDESCRIPTIONUSAGE
99495423 in. x 25 in.Polishing Cloth ± Wax TreatedExterior polishing cloth
105017216 oz. (0.473 L)Tar and Road Oil RemoverRemoves tar, road oil and asphalt
105017316 oz. (0.473 L)Chrome Cleaner and PolishUse on chrome, stainless steel, nickel, copper and brass
105017416 oz. (0.473 L)White Sidewall Tire CleanerRemoves soil and black marks from whitewalls
105021432 oz. (0.946 L)Vinyl CleanerCleans vinyl tops, upholstery and convertible tops
105042723 oz. (0.680 L)Glass CleanerRemoves dirt, grime, smoke and fingerprints
1052918**8 oz. (0.237 L)Armor All
ProtectantProtects leather, wood, acrylics, Plexiglas
, plastic,
rubber and vinyl
105292516 oz. (0.473 L)Multi-Purpose Interior
CleanerCleans carpets, seats, interior trim, door panels
and floor mats
105292916 oz. (0.473 L)Wheel CleanerSpray on and rinse with water
10529308 oz. (0.237 L)Capture Dry Spot RemoverAttracts, absorbs and removes soils on fabric
123457212.5 sq. ft.Synthetic ChamoisShines vehicle without scratching
1234572512 oz. (0.354 L)Silicone Tire ShineSpray on tire shine
12377964*16 oz. (0.473 L)Finish EnhancerRemoves dust, fingerprints and surface contaminants
12377966*16 oz. (0.473 L)Cleaner WaxRemoves light scratches and oxidation and protects finish
12377984*16 oz. (0.473 L)Surface CleanerRemoves contaminants, blemishes and swirl marks
See your General Motors Parts Department for these products. * For exterior use only.
See ªRecommended Fluids and Lubricantsº in the Index. ** Not recommended for use on instrument panels.

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6-58 Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses, circuit breakers
and fusible thermal links.
Look at the silver
-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical size
and rating.
If you ever have a problem on the road and don't have a
spare fuse, you can borrow one that has the same
amperage or use one of the spare fuses in the underhood
fuse and relay center. Just pick some feature of your
vehicle that you can get along without
-- like the radio
or cigarette lighter
-- and use its fuse, if it is the right
amperage. Replace it as soon as you can.
There are two fuse blocks in your vehicle: the
instrument panel fuse block and the underhood fuse and
relay center.Instrument Panel Fuse Block
The instrument panel fuse
block is located to the right
of the glove box. Pull the
door open to access the
instrument panel fuse block.
Pull the door open to access the instrument panel
fuse block.

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6-59
Circuit
BreakersUsage
HEADLAMP DRL Control Module, Headlamp and
Instrument Panel Dimmer Switch
PWR WDO Front Power Windows
PWR SEAT/PSD 6
-Way Power Seat(s) and Rear
Side Door Actuator Motor
FRT HVAC/HI
BLWRBlower Motor Hi Speed
Relay ModuleFuses Usage
SWC
BACKLIGHTSteering Wheel Radio Control
Switches (Illumination)
ELEC PRNDL Instrument Cluster to PRNDL
Indicators
PWR MIRROR Power Remote Control
Mirror Switch
CRUISE Cruise Control Module, Switch
and Release Switch
PWR QTR
VENTInterior Lamps and Multifunction
Switch (Power Vent Switch)
FRT
WPR/WSHRWindshield Wiper/Washer Motor
and Switch
PASS KEY PASS
-Key System
PWR LOCK Body Control Module (BCM)
HTD MIRROR Heated Mirrors
RH T/LP Not Used
RR FOG LP Not Used
CIGAR/DLC Cigarette Lighter and Data Link
Connector (DLC)
T/SIG Turn Signal Switch
RR HVAC Rear Blower Motor, Rear
Heater
-A/C Control, Temperature
Door Actuator (Rear)

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7-31 At Least Twice a Year
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages are
working properly. If your vehicle has a built
-in child
restraint, also periodically make sure the harness straps,
latch plates, buckle, clip, child head restraint and
anchorages are working properly. Look for any other
loose or damaged safety belt and built
-in child restraint
system parts. If you see anything that might keep a
safety belt or built
-in child restraint system from doing
its job, have it repaired. Have any torn or frayed safety
belts or harness straps replaced.
Also look for any opened or broken air bag coverings,
and have them repaired or replaced. (The air bag system
does not need regular maintenance.)
Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace blade
inserts that appear worn or damaged or that streak or
miss areas of the windshield. Also see ªWiper Blades,
Cleaningº in the Index.Weatherstrip Lubrication
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth. During very cold, damp
weather more frequent application may be required. (See
ªRecommended Fluids and Lubricantsº in the Index.)
Automatic Transaxle Check
Check the transaxle fluid level; add if needed. See
ªAutomatic Transaxle Fluidº in the Index. A fluid loss
may indicate a problem. Check the system and repair
if needed.
At Least Once a Year
Key Lock Cylinders Service
Lubricate the key lock cylinders with the lubricant
specified in Part D.
Body Lubrication Service
Lubricate all body door hinges, including the liftgate.
Also lubricate all hinges and latches, including those for
the hood, sliding door track, power sliding door cable,
rear compartment, fuel door hinge, glove box door and
any folding seat hardware. Part D tells you what to use.
More frequent lubrication may be required when
exposed to a corrosive environment.

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8-7
Chevrolet offers Courtesy Transportation for customers
needing warranty service. Courtesy Transportation will
be offered in conjunction with the coverage provided by
the Bumper to Bumper New Vehicle Limited Warranty
to eligible purchasers of 1999 Chevrolet passenger cars
and light duty trucks. (Please see your selling dealer
for details.)
Note: Courtesy Care is available to retail and retail lease
customers operating 1999 and newer Chevrolet vehicles
for a period of 3 years/36,000 miles (60 000 km),
whichever occurs first. All Courtesy Care services must
be pre
-arranged by Chevrolet Roadside or dealer
service management.
Basic Care and Courtesy Care are not part of or
included in the coverage provided by the New Vehicle
Limited Warranty. Chevrolet reserves the right to
modify or discontinue Basic Care and Courtesy Care
at any time.
For complete program details, see your Chevrolet dealer
to obtain a Roadside Assistance Center brochure.
The Roadside Assistance Center uses companies that
will provide you with quality and priority service. When
roadside services are required, our advisors will explain
any payment obligations that may be incurred for
utilizing outside services.For prompt assistance when calling, please have the
following available to give to the advisor:

Vehicle Identification Number (VIN)

License plate number

Vehicle color

Vehicle location

Telephone number where you can be reached

Vehicle mileage

Description of problem
Please refer to the Roadside Assistance brochure
inside your owner information portfolio for full
program details.
Canadian Roadside Assistance
Vehicles purchased in Canada have an extensive
Roadside Assistance program accessible from anywhere
in Canada or the United States. Please refer to the
separate brochure provided by the dealer or call
1
-800-268-6800 for emergency services.

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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

9-
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9-1
Section 9 Index
A
ccessory Inflator System 2-80 . . . . . . . . . . . . . . . . . . . . . . .
Accessory Power Outlets 2-83 . . . . . . . . . . . . . . . . . . . . . . . . .
Adding Equipment to the Outside of Your Vehicle 6-3 . . . . . .
Adjusting
Bucket Seats 1
-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Split Bench Seat 1-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Bag 1-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How Does it Restrain 1-43 . . . . . . . . . . . . . . . . . . . . . . . . . .
How it Works 1-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Location 1-40, 1-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Readiness Light 1-40, 2-89 . . . . . . . . . . . . . . . . . . . . . . . . .
Servicing 1-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System 1-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What Makes it Inflate 1-43 . . . . . . . . . . . . . . . . . . . . . . . . . .
What Will You See After it Inflates 1-44 . . . . . . . . . . . . . . .
When Should it Inflate 1-42 . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner/Filter 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning 3-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Conditioning Refrigerants 6-65 . . . . . . . . . . . . . . . . . . . . .
Air Inflator 2-80 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alignment and Balance, Tire 6-45 . . . . . . . . . . . . . . . . . . . . . .
Aluminum Wheels, Cleaning 6-53 . . . . . . . . . . . . . . . . . . . . . .
Antenna, Integrated Windshield 3-32 . . . . . . . . . . . . . . . . . . . .
Antifreeze 6-21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Anti-Lock
Brake System Warning Light 2-91, 4-7 . . . . . . . . . . . . . . . .
Brakes 4-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appearance Care 6
-47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appearance Care Materials 6-55 . . . . . . . . . . . . . . . . . . . . . . .
Ashtray 2-79 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio Systems 3-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic
Door Locks 2
-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overdrive 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Transaxle
Check 7
-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid 6-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Park Mechanism Check 7-33 . . . . . . . . . . . . . . . . . . . . . . . .
Shifting 2-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Add Fluid 6-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Check Fluid 6-18 . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Check and Change Fluid 6-18 . . . . . . . . . . . . . . . .
Battery 6-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump Starting 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warnings 5-3, 5-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Saver 2-66 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BBB Auto Line 8-3, 8-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Before Leaving on a Long Trip 4-22 . . . . . . . . . . . . . . . . . . . .
Better Business Bureau (BBB) Mediation 8-3, 8-4 . . . . . . . . .
Blizzard 4-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .