Page 99 of 391

2-33
Engine Exhaust
CAUTION:
Engine exhaust can kill. It contains the gas
carbon monoxide (CO), which you can't see or
smell. It can cause unconsciousness and death.
You might have exhaust coming in if:
Your exhaust system sounds strange
or different.
Your vehicle gets rusty underneath.
Your vehicle was damaged in a collision.
Your vehicle was damaged when driving over
high points on the road or over road debris.
Repairs weren't done correctly.
Your vehicle or exhaust system had been
modified improperly.
If you ever suspect exhaust is coming into
your vehicle:
Drive it only with all the windows down to
blow out any CO; and
Have your vehicle fixed immediately.
Running Your Engine While You're
Parked (Automatic Transmission)
It's better not to park with the engine running. But if you
ever have to, here are some things to know.
CAUTION:
Idling the engine with the climate control
system off could allow dangerous exhaust into
your vehicle. See the earlier Caution under
ªEngine Exhaust.º
Also, idling in a closed-in place can let deadly
carbon monoxide (CO) into your vehicle even if
the fan switch is at the highest setting. One place
this can happen is a garage. Exhaust
-- with
CO
-- can come in easily. NEVER park in a
garage with the engine running.
Another closed-in place can be a blizzard.
See ªBlizzardº in the Index.
Page 144 of 391
3-
3-1
Section 3 Comfort Controls and Audio Systems
In this section, you'll find out how to operate the comfort control and audio systems offered with your vehicle. Be
sure to read about the particular systems supplied with your vehicle.
3
-2 Comfort Controls
3
-2 Climate Control System
3
-3 Air Conditioner Controls
3
-4 Heating
3
-4 Defogging and Defrosting
3
-4 Rear Window Defogger (If Equipped)
3
-5 Ventilation System
3
-6 Audio Systems
3
-6 Setting the Clock
3
-6AM-FM Stereo3
-9AM-FM Stereo with Cassette Tape Player
3
-14 AM-FM Stereo with Compact Disc Player
(If Equipped)
3
-18 Understanding Radio Reception
3
-18 Tips About Your Audio System
3
-19 Care of Your Cassette Tape Player
3
-21 Care of Your Compact Discs
3
-21 Care of Your Compact Disc Player
3
-21 Antenna
Page 145 of 391

3-2
Comfort Controls
With this system, you can control the heating and
ventilation in your vehicle. Your vehicle's air
conditioning can also control cooling.
Your vehicle also has the flow
-through ventilation
system described later in this section.
Climate Control System
Airflow Lever
VENT: This position directs the airflow through
the instrument panel vents.
BI-LEVEL: This position directs air through the
instrument panel vents and toward the floor.
FLOOR: This position directs air toward the floor.
DEFOG: This position directs air toward the
floor, the windshield and side windows. The air also
comes from both vents at the ends of the instrument
panel if the thumbwheel below them is in the open
position. The air conditioning compressor will run
automatically in this setting without turning on the
A/C button light.
DEFROST: This position directs air to the
windshield and side windows. The air also comes from
both vents at the ends of the instrument panel if the
thumbwheel below them is in the open position. The air
conditioning compressor will run automatically in this
setting without turning on the A/C button light. For
maximum defrosting, adjust the temperature control
lever to the hot end and adjust the side outlets so the air
blows on the side window.
Page 146 of 391

3-3
Fan Lever
Slide the lever away from OFF to turn the system on.
Move the lever toward the fan symbol to increase the
fan's speed.
Temperature Lever
Slide the lever to change the temperature of the air
flowing from the system. Move it to the right for
warmer air and to the left for cooler air. Without air
conditioning, the air temperature cannot be less than
the outside air temperature.
Air Intake Lever
RECIRCULATE: Choose this position to
recirculate the inside air through the comfort
control system.
OUTSIDE AIR: Choose this position to circulate
outside air through the comfort control system.
Air Conditioner Controls
The air conditioning system
uses the same controls as
described previously. The
function of each lever is
explained under ªClimate
Control Systemº in this
part. The incoming air is
cooled and dehumidified
instead of being heated.
Push the A/C button to change your comfort control
system from heating to air conditioning. With this
operation, a light will come on when the air
conditioning is on. The A/C button can also control
the humidity in your vehicle.
The air conditioner works best if you keep your
windows closed. On very hot days, open the windows
just long enough for the hot air to escape.
Page 303 of 391

6-51 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.