climate control CHEVROLET CORVETTE 2001 5.G User Guide

5-22
NOTICE:
The car engine must be running to avoid draining
the battery while running the air compressor.
Follow the proper steps to be sure your vehicle won't
move. See ªParking Your Vehicle, Manual
Transmissionº in the Index.
CAUTION:
It can be dangerous to get out of your vehicle
with the engine running, if the shift lever is not in
NEUTRAL (N) with the parking brake firmly set
(manual transmission). Your vehicle can roll or
move suddenly even when on fairly level ground.
To be sure your vehicle won't move, always
set your parking brake and move the shift lever
to NEUTRAL (N) when you start or idle
your engine.
CAUTION:
Idling the engine in a closed-in place or with the
climate control system off can cause deadly
carbon monoxide (CO). See ªEngine Exhaustº in
the Index.
CAUTION:
Inflating something too much can make it
explode, and you or others could be injured. Be
sure to read the inflator instructions, and inflate
the tire to its recommended pressure. Do not
exceed 36 psi (248 kPa).

6-48 Uniform Tire Quality Grading
Quality grades can be found where applicable on the tire
sidewall between tread shoulder and maximum section
width. For example:
Treadwear 200 Traction AA Temperature A
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.