2003 CHEVROLET CORVETTE climate control

The main components of your instrument panel are the
following:
A. Instrument Panel Brightness Control
B. Head-Up Display Controls
C. Turn Signal/Multifunction Lever
D. Driver Information Center (DIC) (Located in the
Instrument Cluster)
E. Instrument Panel Cluster
F. Windshield Wiper/Washer Lever
G. Driver Information Center (DIC) Buttons
H. Hazard Warning Flasher Button
I. Center Air Outlets
J. Audio System
K. Climate Controls
L. Fog Lamp Button
M. Remote Hatch Release Button (Coupe) or Remote
Trunk Release Button (Convertible/Z06)N. Ignition Switch
O. Shift Lever (Automatic Shown)
P. Active Handling Button
Q. Accessory Power Outlet (Located in the Center
Console)
R. Selective Ride Control Switch
S. Air Bag Off Light
T. Instrument Panel Cupholder
U. Remote Fuel Door Release Button (Located in the
Center Console)
V. Ashtray and Cigarette Lighter
W. Parking Brake
X. Glove Box
Y. Instrument Panel Fuse Block (Located Behind the
Toe-Board)
Z. Air Bag Off Switch (Located in Glove Box)
3-3

Climate Controls
Dual Automatic Climate Control
System
With this system you can control the heating, cooling
and ventilation for your vehicle.When your vehicle is ®rst started, the display will show
the driver's temperature setting, the fan speed and
the air delivery for approximately ®ve seconds; then it
will show the outside temperature.
The digital display will show readings in Fahrenheit or
Celsius by pressing the E/M (English/metric) button
on the Driver Information Center (DIC).
Automatic Operation
AUTO (Automatic):Press the AUTO button to place
the entire system in the automatic mode. When
automatic operation is active, the system will
automatically control the inside temperature, the air
delivery mode and the fan speed.
3-22

After a ®ve-second display of the current settings, only
the word AUTO and the outside temperature will be
shown on the digital display unless the system is set to
full cold 60ÉF (16ÉC) or full hot 90ÉF (32ÉC), then the
word AUTO will not display. The system will operate to
achieve your comfort set temperature as quickly as
possible. The AUTO control system works best with the
windows up and the removable roof installed or the
convertible top up.
1. Press the AUTO button.
2. Adjust the temperature to a comfortable setting
between 60ÉF (16ÉC) or full hot 90ÉF (32ÉC).
Choosing the coldest or warmest temperature
setting will not cause the system to heat or cool any
faster. If you set the system at the coldest or
warmest temperature setting, the system will remain
in manual mode at that temperature and it will not
go into automatic mode.
In cold weather, the system will start at reduced fan
speeds at avoid blowing cold air into your vehicle
until warmer air is available. The system will
start out blowing air at the ¯oor but may change
modes automatically as the vehicle warms up
to maintain the chosen temperature setting. The
length of time needed for warm up will depend on
the outside temperature and the length of time
that has elapsed since your vehicle was last driven.3. Wait for the system to regulate. This may take from
10 to 30 minutes. Then adjust the temperature, if
necessary.
Do not cover the solar sensor located in the center of
the instrument panel, near the windshield. For more
information on the solar sensor, see ªSolar Sensorº later
in this section.
Manual Operation
OFF:Press this button to turn off the climate control
system. This is the only setting that fully shuts off
the fan. The digital display will show only the outside
temperature. You can still adjust the driver's set
temperature, the passenger temperature offset and the
air intake mode while in OFF.
MODE:Press this button to manually lock in the current
air delivery setting and to stop the automatic mode
control. Pressing the MODE button will delete AUTO
from the digital display and the mode graphics will
be shown. To change the setting, press the MODE
button again. The AUTO button must be pressed
to return to the automatic mode selection.
3-23

There is also an inside temperature sensor located to
the left of the ignition switch. The automatic climate
control system uses this sensor to receive information,
so if you block or cover it, the system will not function
properly.
Defogging and Defrosting
Fog on the inside of windows is a result of high humidity
(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 FRONT to remove fog or frost from
the windshield more quickly.
Press the MODE button until the defog mode appears
on the display.
-(Defog):This mode directs the air equally between
the windshield and the ¯oor outlets with a small
amount to the side window outlets. When you select this
mode, the system turns off recirculation and runs the
air-conditioning compressor unless the outside
temperature is at or below freezing. An indicator light in
the A/C button will come on to let you know that the
air-conditioning compressor is activated. The
recirculation mode cannot be selected while in the
defog mode.
1FRONT:Pressing this button directs most of the
air to the windshield, with a small amount directed to the
side window outlets. The light on the button will come
on and the digital display will show the defrost mode
symbol and fan speed when the front defrost mode is
being used. In this mode, the system will automatically
turn off the recirculation and run the air-conditioning
compressor, unless the outside temperature is at
or below freezing. An indicator light in the A/C button
will come on to let you know that the air-conditioning
compressor is activated. Recirculation cannot be
selected while in the defrost mode. Pressing this button
again will return the system to the last operating
mode and the air intake mode will be in outside air.
If the system is in FRONT defrost when you shut the
engine off, it will restart in FRONT defrost unless
the engine is off for longer than 40 minutes. If the engine
is off longer than 40 minutes, the system will restart in
the operating mode that was set prior to FRONT defrost
and the air intake mode will be in outside air. Do not
drive until all windows are clear.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog or frost from the rear window.
The rear window defogger will only work when the
engine is running.
3-27

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 speci®ed government test course.
For example, a tire graded 150 would wear one and
a half (1.5) 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 signi®cantly 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 speci®ed 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.
5-60

{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 ®rmly
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:
In¯ating something too much can make it
explode, and you or others could be injured.
Be sure to read the in¯ator instructions, and
in¯ate the tire to its recommended pressure.
Do not exceed 36 psi (248 kPa).
Notice:Do not allow the air compressor to operate
continuously for more than six minutes to help
prevent damage from overheating.
Notice:If 26 psi (179 kPa) tire pressure cannot be
reached after six minutes the vehicle should not
be driven further. Damage to the tire is severe and
the sealant will not be effective. Remove the air
compressor plug from the accessory power outlet
and unscrew the in¯ating hose from the tire
valve. See ªRoadside Assistanceº in the Index.
If 26 psi (179 kPa) tire pressure is reached in six
minutes or less, disconnect the air compressor and
attach the enclosed maximum speed label to the inside
upper left corner of the windshield or to the face of
the radio/clock.
5-72

Checking Things Under the Hood......................5-10
Checking Your Restraint Systems......................1-48
Check...........................................................3-38
Engine Light...............................................3-38
Gages Warning Light...................................3-42
Chemical Paint Spotting...................................5-81
Child Restraints..............................................1-26
Child Restraint Systems...............................1-26
Infants and Young Children...........................1-23
Lower Anchorages and Top Tethers for
Children (LATCH System)..........................1-31
Older Children.............................................1-21
Securing a Child Restraint Designed for
the LATCH System...................................1-33
Securing a Child Restraint in the Passenger
Seat Position...........................................1-34
Top Strap Anchor Location............................1-31
Top Strap...................................................1-30
Cigarette Lighter.............................................3-21
Cleaning Aluminum Wheels..............................5-80
Cleaning Coated Moldings................................5-76
Cleaning Exterior Lamps/Lenses.......................5-78
Cleaning Fabric/Carpet....................................5-75
Cleaning Glass Surfaces..................................5-77
Cleaning Interior Plastic Components.................5-77
Cleaning Leather............................................5-76
Cleaning Removable Roof Panel.......................5-79
Cleaning the Convertible Top............................5-80
Cleaning the Security Shade and
Convenience Net.........................................5-77Cleaning the Top of the Instrument Panel...........5-76
Cleaning Tires................................................5-80
Cleaning Windshield and Wiper Blades..............5-79
Cleaning........................................................5-81
Fiberglass Springs.......................................5-81
Inside of Your Vehicle..................................5-75
Outside of Your Vehicle................................5-78
Titanium Exhaust System..............................5-81
Underbody Maintenance...............................5-81
Weatherstrips..............................................5-77
Climate Control System...................................3-22
Dual Automatic............................................3-22
Outlet Adjustment........................................3-28
Clutch, Hydraulic.............................................5-22
Compact Disc Messages..........................3-70, 3-75
Competitive Driving Mode................................4-11
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-42
Convertible Top..............................................2-49
Lowering the Convertible Top........................2-50
Raising the Convertible Top..........................2-53
Coolant.........................................................3-38
Engine Temperature Gage............................3-38
Heater, Engine............................................2-23
Surge Tank Pressure Cap.............................5-26
Cooling System..............................................5-29
Courtesy Lamps.............................................3-16
Cruise Control.................................................. 3-9
Cupholder(s)..................................................2-39
Current and Past Model Order Forms................7-11
3

Customer Assistance Information........................ 7-7
Courtesy Transportation.................................. 7-7
Customer Assistance for Text Telephone
(TTY) Users.............................................. 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons with
Disabilities................................................ 7-5
Reporting Safety Defects to General Motors....7-10
Reporting Safety Defects to the Canadian
Government............................................7-10
Reporting Safety Defects to the United States
Government.............................................. 7-9
Roadside Assistance Program......................... 7-6
Service Publications Ordering Information........7-10
D
Daytime Running Lamps..................................3-13
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-27
Disabling the Theft-Deterrent Feature.................3-77
Disarming the System.....................................2-17
Doing Your Own Service Work........................... 5-3
Door............................................................... 2-9
Locks.......................................................... 2-9
Power Door Locks.......................................2-10
Downshifting (Manual Transmission)..................2-29Driver Information Center (DIC).........................3-44
DIC Controls and Displays............................3-45
DIC Warnings and Messages........................3-53
Other Messages..........................................3-61
Driver............................................................1-13
Position, Safety Belt.....................................1-13
Driving On Snow or Ice...................................4-28
Driving Through Deep Standing Water...............4-21
Driving Through Flowing Water.........................4-21
Driving..........................................................4-18
At Night.....................................................4-18
City...........................................................4-22
Defensive..................................................... 4-2
Drunken....................................................... 4-2
Freeway.....................................................4-23
Hill and Mountain Roads..............................4-25
In Rain and on Wet Roads...........................4-19
Winter........................................................4-27
Dual Automatic Climate Control System.............3-22
E
Electrical System............................................5-84
Accessory Power Plug.................................5-84
Add-On Equipment......................................5-84
Fuses and Circuit Breakers...........................5-86
Headlamp Wiring.........................................5-85
4