light CHEVROLET CORVETTE 2000 5.G Workshop Manual

2-103
REDUCE ENGINE RPM: You will hear four chimes
when this message is displayed. To acknowledge the
warning, press the RESET button. After you press the
RESET button, a message will be displayed and you
will hear a chime every minute until this condition
changes. If you do not press RESET, the message will
remain on the digital display until the condition changes.
If the engine oil temperature exceeds 320
F (160
C),
this message is displayed. You should check the engine
coolant temperature and engine oil level. If your engine
is too hot, see ªEngine Overheatingº in the Index.
Your vehicle may need service, so see your dealer.
You can monitor the oil temperature with the GAGES
button on the DIC.
HIGH TRANS TEMP (Automatic Transmission
Only): You will hear four chimes when this message is
displayed. To acknowledge this warning, press the
RESET button. After you press the RESET button,
the message will be displayed every 10 minutes until
the condition changes. If you do not press RESET,
the message remains on the display until the
condition changes.If the transmission fluid temperature rises above
270
F (132
C) or rises rapidly, this message is
displayed. The transmission may shift gears or apply the
torque converter clutch to reduce the fluid temperature.
Driving aggressively or driving on long hills can cause
the transmission fluid temperature to be higher than
normal. If this message appears, you may continue to
drive at a slower speed. You should also monitor the
transmission fluid temperature and allow it to cool to at
least 230
F (110
C). The transmission fluid temperature
can be monitored with the GAGES button on the DIC.
See ªAutomatic Transmission Fluidº in the Index.
You should also check the engine coolant temperature.
If it is also hot, see ªEngine Overheatingº in the Index.
If the HIGH TRANS TEMP message is displayed
during normal vehicle operation on flat roads, your
vehicle may need service. See your dealer for
an inspection.
SERVICE ACTIVE HANDLG: If the SERVICE
ACTIVE HNDLG message is displayed, there is a
problem with your Active Handling System and your
vehicle needs service. The instrument cluster light will
also be on and a chime will sound. When this message is
displayed, the system is not working. Adjust your
driving accordingly.

3-3
DEFOG: This setting divides the air between the
windshield and lower outlets with a small amount of air
directed toward the side window vents. This is useful
when fog appears on the windshield or side glass due to
rain or snowy conditions.
DEFROST: Use this setting to quickly remove fog
or frost from the windshield. This setting directs most of
the airflow to the windshield with a small amount of air
directed toward the lower and side window outlets.
Mode Buttons
These buttons control the air intake, the air conditioning
and the rear window defogger operation.
FRESH AIR: Press this button and it will bring
outside air into the vehicle. The light on the button will
come on when operating. Use this setting while trying to
defrost or defog windows to help clear moisture.
RECIRCULATE: Press this button to limit the
amount of fresh air entering the vehicle by recirculating
most of the air inside the vehicle. The light on the button
will come on when operating. This setting is helpful
when you are trying to cool the air quickly or to limit
odors entering the vehicle. Recirculate cannot be used
while in the DEFROST or DEFOG modes.Operating the system in the recirculation mode may
cause fogging of the vehicle's windows when the
weather is cold and damp. To clear the fog, switch the
system to either the DEFOG or DEFROST mode and
increase the fan speed. To avoid re
-fogging of the
windows, operate the system in the OUTSIDE
AIR mode.
A/C: This button turns the air conditioning
compressor off or on under most conditions. The light
on the A/C button comes on when the compressor is
operating. The air conditioning does not operate at
temperatures below approximately 35
F to 40
F
(2
C to 4
C). The air conditioning cools and
dehumidifies the air coming into the vehicle. The air
conditioning cannot be turned off in DEFROST, as it
helps to remove moisture from the vehicle. It also helps
to keep the windows clear.
The air conditioning may be forced off at high engine
speeds or high engine oil or coolant temperatures.
See ªRear Window Defoggerº later in this section for
more information.

3-8
A/C: This button turns the air conditioning
compressor off or on under most conditions. The light
on the A/C button will come on when the compressor is
operating in either the automatic or manual mode. The
air conditioning does not operate at temperatures below
approximately 35
F to 40
D (2
C to 4
C).
The light on the A/C button will flash if pressed when
air conditioning is not allowed. The air conditioning
cools and dehumidifies the air coming into the vehicle.
The air conditioning cannot be turned off in DEFROST
and DEFOG, as it helps to remove moisture from the
vehicle. It also helps to keep the windows clear.
If the system is operating in the AUTO mode, turning
the air conditioning off will delete AUTO from the
digital display and show current mode and fan settings.
The AUTO button must be pressed to return to the
automatic mode operation.
The air conditioning may be forced off at high engine
speeds or high engine oil or coolant temperatures. FRESH AIR: Press this button to provide fresh
air from the outside. The light on this air intake button
will come on to show when it is operating. When in the
AUTO mode, the system automatically selects FRESH
AIR instead of recirculate, as required, to control the
temperature in the vehicle. By pressing FRESH AIR, the
system will lock into the fresh air mode. Any adjustment
to the air intake must then be made manually. FRESH
AIR should be used when trying to defrost or defog
windows to help reduce moisture inside the vehicle.
RECIRCULATE: Press this button to limit the
amount of fresh air entering the vehicle. The light on
this air intake button will come on to show when it is
operating. Recirculate is helpful when you are trying to
cool the air quickly or trying to limit odors and dust
from entering the vehicle. When in the AUTO mode,
the system automatically selects recirculate to cool the
vehicle's temperature. By pressing this button, the
system will lock into the recirculated air mode.
Any adjustment to the air intake must then be made
manually. The recirculated air mode is not allowed in
the front defrost or defog modes as fresh air helps
reduce moisture inside the vehicle.

3-9
Operating the system in the recirculation mode may
cause fogging of the vehicle's windows when the
weather is cold and damp. To clear the fog, switch the
system to either the DEFOG or DEFROST mode and
increase the fan speed. To avoid re
-fogging of the
windows, operate the system in the OUTSIDE
AIR mode.
FRONT: Press the FRONT defrost button to
quickly remove fog or frost from the windshield. This
setting directs most of the airflow to the windshield and
a small amount toward the lower and 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.
Pressing FRONT defrost again will return the system to
the last operating mode and the air intake mode will be
in FRESH 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 you had set prior to FRONT defrost and
the air intake mode will be in FRESH AIR.
See ªRear Window Defoggerº later in this section for
more information.
Sensors
The automatic electronic dual climate control system
uses several sensors to control operation and
display information.
Solar Load Sensor
This sensor is located on the top right side of the
defroster grille. The defroster grille is on the top of the
instrument panel.
The sensor monitors the sun's solar radiation and uses
this information as part of the automatic climate control
system when operating in the AUTO mode.
Be careful not to put anything over the sensor. When
covered, the sensor cannot compensate for changes in
the amount of heat the vehicle is absorbing from the sun.
Outside Air Temperature Sensor
This sensor is located in the air intake under the front
bumper of the vehicle. Information from this sensor is
used for the outside air temperature readings shown
on the digital display for the automatic climate
control system.

3-10
If the outside temperature goes up, the displayed
temperature will not change until:

The vehicle's speed is above 16 mph (26 km/h) for
one and a half minutes.

The vehicle's speed is above 45 mph (72 km/h) for
one minute.
These delays help prevent false readings. If the
temperature goes down, the outside temperature display
is updated immediately.
If the vehicle has been turned off for more than three
hours, the current outside temperature will be shown
when you start the vehicle. If it has been turned off for
less than three hours, the temperature will be recalled
from the previous vehicle operation.
Inside Temperature Sensor
This sensor is 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.Air Conditioning
On very hot days, the vehicle will cool down more
quickly and economically if you open the windows
long enough to let hot inside air escape. Then keep the
windows closed in order to allow the air conditioning to
work best. Maximum cooling will occur when the
recirculate setting is operating, airflow direction is in the
upper mode, and the temperature control knob (on a
manual climate control system) is turned all the way to
the blue area. These settings will be selected by the
automatic electronic dual climate control system if
operating in AUTO when maximum cooling is required.
When the air conditioning is on, you may sometimes
notice slight changes in the vehicle's engine
performance and power. This is normal. The system is
designed to help fuel economy while maintaining the
desired cooling level.
The air conditioning removes moisture from the air, so
you may notice water dripping from under the vehicle
when it is idling or after it has been turned off.
This is normal.

3-11 Heating
The heater works best if you keep the windows closed.
Maximum heating will occur when airflow direction is
in the lower mode and the temperature control knob
(on a manual climate control system) is all the way in
the red area. These settings will be selected by the
automatic electronic dual climate control system if
operating in AUTO when maximum heating is required.
The BI
-LEVEL setting is designed for use on sunny
days when the air is only moderately warm or cool.
On days like these, the sun may adequately warm your
upper body, but your lower body may not be warm
enough. The BI
-LEVEL setting will direct cooler
airflow to your upper body and warmer air to the
floor area.
If you have the optional engine coolant heater and use it
during cold weather 0
F (
-18
C) or lower, the
heating system will provide heat more quickly because
the coolant is already warmed. See ªEngine Coolant
Heaterº in the Index.
Defogging and Defrosting
To rapidly defrost the windshield, the FRONT defrost
mode (automatic electronic dual climate control system)
or defrost mode (manual control system) should be used
and the fan speed should be adjusted to the highest
speed. With the manual control system, turn the
temperature control knob all the way to the red area.
To keep the windshield clear and provide heated air to
the floor area of the vehicle, use the DEFOG setting.
Your vehicle is equipped with side window defogger
vents located near the side rearview mirrors.
Rear Window Defogger
REAR: This button turns the rear defogger and
the heated outside mirrors on. The light on the button
will come on when operating. The system automatically
shuts off after approximately 15 minutes. If further
defogging is desired, press the button again and it will
operate for about seven and a half more minutes.
The rear window defogger operates only when the
engine is running.

3-14
Finding a Station
AM
-FM: Press this button to switch between AM, FM1
and FM2. The display shows your selection.
TUNE: Press this knob lightly so it extends. Turn it to
choose radio stations. Push the knob back into its stored
position when you're not using it.
SEEK: Press the right or left arrow to go to the
next higher or lower station. The sound will mute
while seeking.
SCAN: Press one of the SEEK arrows for two seconds,
and SCAN will appear in the display. Use SCAN to
listen to stations for a few seconds. The radio will go to
a station, stop for a few seconds, then go on to the next
station. Press SEEK again to stop scanning. The sound
will mute while scanning.
PUSHBUTTONS: The six numbered pushbuttons let
you return to your favorite stations. You can set up to
18 stations (six AM, six FM1 and six FM2). Just:
1. Turn the radio on.
2. Press AM
-FM to select the band.
3. Tune in the desired station.4. Press AUTO TONE to select the equalization that
best suits the type of station selected.
5. Press and hold one of the six numbered buttons.
The sound will mute. When it returns, release the
button. Whenever you press that numbered button,
the station you set will return and the AUTO
TONE equalization that you selected will also be
automatically selected for that button.
6. Repeat the steps for each pushbutton.
P.SCAN: Press this button to listen to each of your
favorite stations stored on your pushbuttons for a few
seconds. The radio will scan through each of the stations
stored on your pushbuttons, except those stations with
weak reception. The AUTO TONE setting stored for
that pushbutton will be automatically chosen. Press
P.SCAN or one of the pushbuttons again to stop
scanning. P.SCAN will be displayed whenever the tuner
is in the P.SCAN mode. The channel number (P1
-P6)
will appear momentarily just before the frequency is
displayed. In FM mode, this function will scan through
both FM1 and FM2 preset stations and FM1 or FM2 will
appear on the display.

3-15
Setting the Tone
BASS: Press this knob lightly so it extends. Turn the
knob clockwise to increase bass and counterclockwise to
decrease bass. When you use this control, the radio's
AUTO TONE setting will switch to manual and the
AUTO TONE display will go blank.
TREB: Press this knob lightly so it extends. Turn the
knob clockwise to increase treble and counterclockwise
to decrease treble. When you use this control, the radio's
AUTO TONE setting will switch to manual and the
AUTO TONE display will go blank. If a station is weak
or noisy, you may want to decrease the treble.
Push these knobs back into their stored positions when
you're not using them.
AUTO TONE: This feature allows you to choose
preset bass and treble equalization settings designed for
country/western, classical, news, rock, pop and jazz
stations. C/W will appear on the display when you first
press AUTO TONE. Each time you press it, another
setting will appear on the display. Press it again after
JAZZ appears and the AUTO TONE display will go
blank. Tone control will return to the BASS and TREB
knobs. Also, if you use the BASS and TREB knobs,
control will return to them and the AUTO TONE display
will go blank. Use PUSHBUTTONS and AUTO TONE
button to program AUTO TONE for station presets.Adjusting the Speakers
BAL: Press this knob lightly so it extends.
Turn the knob clockwise for the right speakers and
counterclockwise for the left speakers. The middle
position balances the sound between the speakers.
FADE: Press this knob lightly so it extends. Turn the
knob clockwise to adjust the sound to the front speakers
and counterclockwise for the rear speakers. The middle
position balances the sound between the speakers.
Push these knobs back into their stored positions when
you're not using them.
Playing a Cassette Tape
Your tape player is built to work best with tapes that are
up to 30 to 45 minutes long on each side. Tapes longer
than that are so thin they may not work well in this
player. If a tape is inserted when the ignition is on but
the radio is off, the tape will begin playing. A tape
symbol is shown in the center of the graphic display
whenever a tape is inserted. When a tape is active, the
tape symbol will be accompanied by a direction arrow.

3-19
Finding a Station
AM
-FM: Press this button to switch between AM, FM1
and FM2. The display shows your selection.
TUNE: Press this knob lightly so it extends. Turn it to
choose radio stations. Push the knob back into its stored
position when you're not using it.
SEEK: Press the right or left arrow to go to the
next higher or lower station. The sound will mute
while seeking.
SCAN: Press one of the SEEK arrows for two seconds,
and SCAN will appear on the display. Use SCAN to
listen to stations for a few seconds. The radio will go to
a station, stop for a few seconds, then go on to the next
station. Press SEEK again to stop scanning. The sound
will mute while scanning.
PUSHBUTTONS: The six numbered pushbuttons let
you return to your favorite stations. You can set up to
18 stations (six AM, six FM1 and six FM2). Just:
1. Turn the radio on.
2. Press AM
-FM to select the band.
3. Tune in the desired station.4. Press AUTO TONE to select the equalization that
best suits the type of station selected.
5. Press and hold one of the six numbered buttons.
The sound will mute. When it returns, release the
button. Whenever you press that numbered button,
the station you set will return and the AUTO
TONE equalization that you selected will also be
automatically selected for that button.
6. Repeat the steps for each pushbutton.
P.SCAN: Press this button to listen to each of your
favorite stations stored on your pushbuttons for a few
seconds. The radio will scan through each of the stations
stored on your pushbuttons, except those stations with
weak reception. The AUTO TONE setting stored for
that pushbutton will be automatically chosen. Press
P.SCAN or one of the pushbuttons again to stop
scanning. P.SCAN will be displayed whenever the tuner
is in the P.SCAN mode. The channel number (P1
-P6)
will appear momentarily just before the frequency is
displayed. In FM mode, this function will scan through
both FM1 and FM2 preset stations and FM1 or FM2 will
appear on the display.

3-20
Setting the Tone
BASS: Press this knob lightly so it extends. Turn the
knob clockwise to increase bass and counterclockwise to
decrease bass. When you use this control, the radio's
AUTO TONE setting will switch to manual and the
AUTO TONE display will go blank.
TREB: Press this knob lightly so it extends. Turn the
knob clockwise to increase treble and counterclockwise
to decrease treble. When you use this control, the radio's
AUTO TONE setting will switch to manual and the
AUTO TONE display will go blank. If a station is weak
or noisy, you may want to decrease the treble.
Push these knobs back into their stored positions when
you're not using them.
AUTO TONE: This feature allows you to choose
preset bass and treble equalization settings designed for
country/western, classical, news, rock, pop and jazz
stations. C/W will appear on the display when you first
press AUTO TONE. Each time you press it, another
setting will appear on the display. Press it again after
JAZZ appears and the AUTO TONE display will go
blank. Tone control will return to the BASS and TREB
knobs. Also, if you use the BASS and TREB knobs,
control will return to them and the AUTO TONE display
will go blank. Use PUSHBUTTONS and AUTO TONE
button to program AUTO TONE for station presets.Adjusting the Speakers
BAL: Press this knob lightly so it extends.
Turn the knob clockwise for the right speakers and
counterclockwise for the left speakers. The middle
position balances the sound between the speakers.
FADE: Press this knob lightly so it extends. Turn the
knob clockwise to adjust the sound to the front speakers
and counterclockwise for the rear speakers. The middle
position balances the sound between the speakers.
Push these knobs back into their stored positions when
you're not using them.
Playing a Compact Disc
Insert a disc partway into the slot, label side up. The
player will pull it in. The disc should begin playing. The
display will show CD and the CD symbol. If you want
to insert a compact disc with the ignition off, first press
RECALL or EJECT.