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6-46 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. Also, check the
tire pressure of the spare tire.
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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6-50 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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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)
