spare tire CHEVROLET ASTRO 1999 User Guide

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6-44 Inflation -- Tire Pressure
The Certification/Tire label, which is on the rear edge of
the driver's door, shows the correct inflation pressures
for your tires when they're cold. ªColdº means your
vehicle has been sitting for at least three hours or driven
no more than 1 mile (1.6 km).
NOTICE:
Don't let anyone tell you that underinflation or
overinflation is all right. It's not. If your tires
don't have enough air (underinflation), you can
get the following:

Too much flexing

Too much heat

Tire overloading

Bad wear

Bad handling

Bad fuel economy.
NOTICE: (Continued)
NOTICE: (Continued)
If your tires have too much air (overinflation),
you can get the following:

Unusual wear

Bad handling

Rough ride

Needless damage from road hazards.
When to Check
Check your tires once a month or more.
Don't forget your compact spare tire. It should be at
60 psi (420 kPa).
How to Check
Use a good quality pocket
-type gage to check tire
pressure. You can't tell if your tires are properly inflated
simply by looking at them. Radial tires may look
properly inflated even when they're underinflated.
Be sure to put the valve caps back on the valve stems.
They help prevent leaks by keeping out dirt
and moisture.

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6-45 Tire Inspection and Rotation
Tires should be rotated every 6,000 to 8,000 miles
(10 000 to 13 000 km). Any time you notice unusual
wear, rotate your tires as soon as possible and check
wheel alignment. Also check for damaged tires or
wheels. See ªWhen It's Time for New Tiresº and
ªWheel Replacementº later in this section for
more information.
The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The first
rotation is the most important. See ªScheduled
Maintenance Servicesº in the Index for scheduled
rotation intervals.
When rotating your tires, always use the correct rotation
pattern shown here.Don't include the compact spare tire in your
tire rotation.
After the tires have been rotated, adjust the front and
rear inflation pressures as shown on the
Certification/Tire label. Make certain that all wheelnuts
are properly tightened. See ªWheel Nut Torqueº in
the Index.
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
an accident. 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.
(See ªChanging a Flat Tireº in the Index.)

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6-47
CAUTION:
Mixing tires could cause you to lose control while
driving. If you mix tires of different sizes or types
(radial and bias
-belted tires), the vehicle may not
handle properly, and you could have a crash.
Using tires of different sizes may also cause
damage to your vehicle. Be sure to use the same
size and type tires on all wheels.
It's all right to drive with your compact spare,
though. It was developed for use on your vehicle.
CAUTION:
If you use bias-ply tires on your vehicle, the
wheel rim flanges could develop cracks after
many miles of driving. A tire and/or wheel could
fail suddenly, causing a crash. Use only radial
-ply
tires with the wheels on your vehicle.
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.

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8-6
Chevrolet Roadside Assistance Program
To enhance Chevrolet's strong commitment to customer
satisfaction, Chevrolet is excited to announce the
establishment of the Chevrolet Roadside Assistance
Center. As the owner of a 1999 Chevrolet, membership
in Roadside Assistance is free.
Roadside Assistance is available 24 hours a day,
365 days a year, by calling 1
-800-CHEV-USA (243-8872).
This toll-free number will provide you over
-the-phone
roadside assistance with minor mechanical problems. If your problem cannot be resolved over the
phone, our advisors have access to a nationwide network
of dealer recommended service providers. Roadside
membership is free; however some services may incur costs.
Roadside offers two levels of service to the customer,
Basic Care and Courtesy Care:

Toll
-free number, 1-800-CHEV-USA (243-8872)

Free towing for warranty repairs

Basic over
-the-phone technical advice

Available dealer services at reasonable costs (i.e.,
wrecker services, locksmith/key service, glass
repair, etc.)
ROADSIDE Courtesy Care PROVIDES:

Roadside Basic Care services (as outlined previously)
Plus:

FREE Non
-Warranty Towing (to the closest dealer
from a legal roadway)

FREE Locksmith/Key Service (when keys are lost
on the road or locked inside)

FREE Flat Tire Service (spare installed on the road)

FREE Jump Start (at home or on the road)

FREE Fuel Delivery ($5 of fuel delivered on
the road)

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9-3
Clock, Setting the 3-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Comfort Controls 3-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Disc Care 3-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Disc Player 3-18, 3-23 . . . . . . . . . . . . . . . . . . . . . . .
Compact Spare Tire 5-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control of a Vehicle 4-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convenience Net 2-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convex Outside Mirror 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant 6-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Heater, Engine 2-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recovery Tank 5-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cooling System 5-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Courtesy Transportation 8-8 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise Control 2-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customer Assistance for Text Telephone Users 8-4 . . . . . . . . .
Customer Assistance Information 8-1 . . . . . . . . . . . . . . . . . . .
Customer Satisfaction Procedure 8-2 . . . . . . . . . . . . . . . . . . . .
Damage, Finish 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Damage, Sheet Metal 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Daytime Running Lamps 2-38 . . . . . . . . . . . . . . . . . . . . . . . . .
Daytime Running Lamps Indicator Light 2-68 . . . . . . . . . . . .
Dead Battery 5-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defects, Reporting Safety 8-10, 8-11 . . . . . . . . . . . . . . . . . . .
Defensive Driving 4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defogger, Rear Window 3-8 . . . . . . . . . . . . . . . . . . . . . . . . . .
Defrosting 3-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions, Vehicle 6-69 . . . . . . . . . . . . . . . . . . . . . . . . . . . . Disabilities, Persons with 8
-5 . . . . . . . . . . . . . . . . . . . . . . . . . .
Dome Lamps 2-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door
Front 2
-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locks 2-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sliding 2-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Position 2-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver Position 1-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driving
City 4
-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Defensive 4-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drunken 4-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Freeway 4-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In a Blizzard 4-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In Foreign Countries 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . .
In the Rain 4-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Night 4-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Curves 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Grades While Towing a Trailer 4-37 . . . . . . . . . . . . . . .
On Hill and Mountain Roads 4-22 . . . . . . . . . . . . . . . . . . . .
On Snow or Ice 4-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Through Water 4-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wet Roads 4-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Winter 4-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
With a Trailer 4-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drunken Driving 4-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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9-10
Shifting 2-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Into Park (P) 2-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Out of Park (P) 2-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shoulder Belt Height Adjuster 1-19 . . . . . . . . . . . . . . . . . . . . .
Skidding 4-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sound Equipment, Adding 3-29 . . . . . . . . . . . . . . . . . . . . . . . .
Spare Tire, Compact 5-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications and Capacities 6-67 . . . . . . . . . . . . . . . . . . . . . .
Speech Impaired, Customer Assistance 8-4 . . . . . . . . . . . . . . .
Speedometer 2-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stains, Cleaning 6-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starter Switch Check 7-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your Engine 2-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steam 5-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In Emergencies 4-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tips 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheel, Tilt 2-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Compartments 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage, Vehicle 6-36 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stuck: In Sand, Mud, Ice or Snow 5-33 . . . . . . . . . . . . . . . . . .
Sun Visors 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sunglasses Storage 2-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols, Vehicle v. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taillamp Bulb Replacement 6-41 . . . . . . . . . . . . . . . . . . . . . .
Tape Player Care 3-29 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature & Compass Display 2-46 . . . . . . . . . . . . . . . . . .
Theft 2-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theft-Deterrent Feature 3-26 . . . . . . . . . . . . . . . . . . . . . . . . . .
THEFTLOCK
3-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermostat 6-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third Gear 2-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tilt Steering Wheel 2-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Time, Setting 3-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire Chains 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire Loading 4-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire-Loading Information Label 4-28 . . . . . . . . . . . . . . . . . . .
Tires 6-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alignment and Balance 6-49 . . . . . . . . . . . . . . . . . . . . . . . .
Buying New 6-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chains 6-50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing a Flat 5-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning 6-57 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compact Spare 5-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation Check 7-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Rotation 6-45 . . . . . . . . . . . . . . . . . . . . . . . .
Loading 4-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pressure 6-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .