climate control CHEVROLET OPTRA 5 2006 1.G User Guide

Defogging and Defrosting
Fog on the inside of windows is a result of high humidity
or moisture condensing on the cool window glass.
This can be minimized if the climate control system is
used properly. There are two modes to clear fog or frost
from your windshield. Use the defog mode to clear
the windows of fog or moisture and warm the
passengers. Use the defrost mode to remove fog or
frost from the windshield more quickly.
Select one of these available modes from the
right knob.
É(Defog):This mode directs most of the air to the
windshield and the floor outlets. A small amount of air is
also directed to the outboard outlets for the side
windows and to the instrument panel side outlets.
When you select this mode, the system runs the
air-conditioning compressor. To defog the windows
faster, turn the temperature control knob clockwise to
the warmest setting.
0(Defrost):This mode directs most of the air to the
windshield and the outboard outlets for the side
windows. A small amount of air is also directed to the
instrument panel side outlets.
When you select this mode, the system runs the
air-conditioning compressor. To defrost the windows
faster, turn the temperature control knob clockwise
to the warmest setting.
Do not drive the vehicle until all windows are clear.
Front Heated Windshield
Your vehicle may have a heated front windshield which
can be used with defog and defrost. This feature will
only work when the ignition is turned to ON.
The front heated windshield uses a heated element to
remove fog or frost from the bottom of the windshield.
<(Rear):Press this button to heat the front
windshield. The button is located below the audio
system. An indicator light in the button will come on to
let you know that the feature is activated. The front
windshield heater will turn off about ten minutes after the
button is pressed. It can also be turned off by pressing
the button again or by turning off the engine. See
“Rear Window and Outside Mirror Defogger” later in this
section for more information on this button.
3-24

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.
Temperature — A, B, C
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of heat
and its ability to dissipate heat when tested under
controlled conditions on a specified indoor laboratory test
wheel.Sustained high temperature can cause the material of the
tire to degenerate and reduce tire life, and excessive
temperature can lead to sudden tire failure. The grade C
corresponds to a level of performance which all
passenger car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B and A
represent higher levels of performance on the laboratory
test wheel than the minimum required by law.
Warning: The temperature grade for this tire is
established for a tire that is properly inflated and not
overloaded. Excessive speed, underinflation, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.
Wheel Alignment and Tire Balance
The tires and wheels on your vehicle were aligned and
balanced carefully at the factory to give you the longest
tire life and best overall performance. Adjustments to
wheel alignment and tire balancing will not be necessary
on a regular basis. However, if you notice unusual tire
wear or your vehicle pulling to one side or the other, the
alignment may need to be checked. If you notice your
vehicle vibrating when driving on a smooth road, your
tires and wheels may need to be rebalanced. See your
dealer for proper diagnosis.
5-61

Charging System Light....................................3-33
Check
Engine Light...............................................3-37
Checking Things Under the Hood......................5-10
Chemical Paint Spotting...................................5-80
Child Restraints
Child Restraint Systems...............................1-33
Infants and Young Children...........................1-30
Lower Anchors and Tethers for Children..........1-39
Older Children.............................................1-28
Securing a Child Restraint in a Rear Seat
Position..................................................1-46
Securing a Child Restraint in the Right
Front Seat Position...................................1-48
Where to Put the Restraint...........................1-38
Cigarette Lighter.............................................3-20
Cleaning
Aluminum Wheels........................................5-78
Exterior Lamps/Lenses.................................5-77
Fabric/Carpet..............................................5-75
Finish Care.................................................5-77
Inside of Your Vehicle..................................5-74
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................5-76
Leather......................................................5-76
Tires..........................................................5-79Cleaning (cont.)
Underbody Maintenance...............................5-79
Washing Your Vehicle...................................5-77
Weatherstrips..............................................5-76
Windshield and Wiper Blades........................5-78
Climate Control System...................................3-22
Air Filter, Passenger Compartment.................3-26
Outlet Adjustment........................................3-25
Clock............................................................3-21
Clutch, Hydraulic.............................................5-19
Collision Damage Repair..................................7-10
Compact Spare Tire........................................5-73
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-36
Coolant
Engine Temperature Gage............................3-36
Heater, Engine............................................2-19
Surge Tank Pressure Cap.............................5-23
Cooling System..............................................5-24
Cruise Control................................................3-13
Cruise Control Light........................................3-41
Cupholder(s)..................................................2-34
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text Telephone (TTY)
Users....................................................... 7-4
3