2002 CHEVROLET IMPALA Owners Manual

2-103
Driver Information Center
(DIC) (Option)
Optional Sunroof Version Shown
The DIC will show information about the vehicle and
the surroundings. It is located in the headliner between
the sun visors.Reset: You can reset the AVG ECON, FUEL USED
or AVG SPEED trip computer modes by pressing and
holding this button for three seconds while you are in
the mode you wish to reset. A chime will sound to
confirm that your requested change has been made
and all the segments of the display will briefly light up.
To change the display to a metric or English reading,
press the RESET and MODE buttons at the same
time. Hold them down for three seconds, and the
display will change. A chime will be heard to confirm
the new selection.
The reset button can also be used to manually calibrate
the compass. See ªManual Compass Calibrationº in
the Index.
The reset button can be used to set the compass zone
variation. See ªCompass Varianceº in the Index.

2-104
MODE (Mode Button): Press this button to cycle
through three modes of operation
-- Off,
Compass/Temperature and Trip Computer mode.
Press this button to cycle through three modes of
operation
-- Off, Compass/Temperature and Trip
Computer mode. In the Trip Computer mode, pressing
the MODE button cycles through the five displays. Press
the MODE button after the last Trip Computer display
to return the DIC to the OFF mode.

Off: No driver information is displayed in this mode
of operation.

Compass/Temperature Mode: One of eight
compass readings and the outside temperature are
displayed. If the temperature is below 38F (3C),
the word ªICEº is displayed for two minutes.

Trip Computer:Pressing the MODE button cycles
through the five displays. Press the MODE button
after the last Trip Computer display to return the
DIC to the OFF mode
Compass Variance
Compass variance is the difference between magnetic
north and geographic north. In some areas of the
country, the difference is great enough to cause the
compass to give false readings. If this occurs,
the compass variance must be set.
Setting the Variance

2-105
Turn the ignition on and cycle the DIC to the
Compass/Temperature mode. Press the RESET button
for approximately five seconds. The last entered
variance zone number and VAR will be displayed. Press
the MODE button until the proper variance number on
the map is shown. Press the RESET button to set the
new variance zone and resume normal operation.
All the display segments will be illuminated briefly to
acknowledge the change in zone number. A chime will
sound to confirm that the new zone number has been set.Automatic Compass Calibration
The compass is self
-calibrating, which eliminates the
need to manually set the compass. When the vehicle is
new, the calibration process may not be complete. In
these cases CAL will be displayed, and all segments of
the compass will be illuminated where the compass
reading is normally displayed.
All Segments Illuminated
To calibrate the compass, in an area free from
large metal objects, make one to two 360
turns.
The calibration symbol will turn off and the compass
reading will be displayed.

2-106
Manual Compass Calibration
If the compass appears erratic and the calibration
symbol does not appear, you must manually put the
compass into the calibration mode.
Turn the ignition on and cycle the DIC to the
Compass/Temperature mode. Press the RESET button
for at least 10 seconds until the calibration symbol
appears and all segments of the compass display are
illuminated. A chime will sound to confirm that the
calibration mode is active. Release the button and
complete two or three 360
turns in an area free from
large metal objects. The calibration symbol will turn off
and the compass reading will be displayed. A chime will
sound to verify that the calibration is complete.
Error Displays

An error of the speed sensor or fuel sender will
cause
-E- to be displayed.

In the absence of vehicle communications, a
dash ª
--º is displayed.
If one of these error messages appear, see your dealer.
Trip Computer
There are five trip computer displays which may be
stepped through by pushing the MODE button.
The information will appear in the following order:

AVG ECON (Average Fuel Economy): This shows
the average fuel economy since the last reset.

INST ECON (Instantaneous Fuel Economy):
This shows fuel economy for the most recent second
of driving.

RANGE (Trip Range): This shows the estimated
distance that can be traveled with the remaining fuel.
The fuel economy used to calculate range is based on
the last few hours of driving. When in a low fuel
condition, LO is displayed.

FUEL USED (Trip Fuel Used): This shows the
accumulated fuel used since the last reset.

AVG SPEED (Average Speed): This shows the
average speed since the last reset.
Resetting the Trip Computer
Press and hold the RESET button for at least three
seconds. The reset is acknowledged with all segments of
the display lit briefly and a chime. A reset can only be
done in AVG ECON, FUEL USED and AVG SPEED
displays. Each setting must be reset individually.

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 Dual ComforTemp
Climate Controls
3
-4 Air Conditioning
3
-4 Heating
3
-4 Ventilation
3
-4 Defogging and Defrosting
3
-5 Rear Window Defogger
3
-6 Ventilation System
3
-7 Audio Systems
3
-7 Setting the Clock
3
-7AM-FM Stereo with Cassette Tape Player
with Radio Data System (RDS) and Automatic
Tone Control
3
-16 AM-FM Stereo with Compact Disc Player
with Radio Data System (RDS) and Automatic
Tone Control (If Equipped)3
-25 AM-FM Stereo with Cassette Tape and
Compact Disc Player with Radio Data
System (RDS) and Automatic Tone Control
(If Equipped)
3
-35 Theft-Deterrent Feature
3
-36 Audio Steering Wheel Controls (If Equipped)
3
-37 Understanding Radio Reception
3
-37 Tips About Your Audio System
3
-38 Care of Your Cassette Tape Player
3
-39 Care of Your Compact Discs
3
-39 Care of Your Compact Disc Player
3
-39 Backglass Antenna
3
-40 Vehicle Customization Settings
3
-40 Chime Level Adjustment

3-2
Comfort Controls
Dual ComforTemp
Climate Controls
With this system, you can control the heating, cooling
and ventilation in your vehicle. The system works best
if you keep your windows closed while using it.
Fan Knob
The knob on the left side of the climate control panel
regulates the fan speed. To turn the fan off, turn the
knob to OFF.
If the airflow seems very low when the fan is adjusted to
the highest setting regardless of the mode setting, your
passenger compartment air filter (if equipped) may need
to be replaced. See ªMaintenance Scheduleº and
ªPassenger Compartment Air Filterº in the Index.Driver's Temperature Lever
The lever on the left adjusts the air temperature on
the driver's side independent of the temperature set
by the passenger. Slide the lever upward to raise the
temperature. Slide the lever downward to lower
the temperature.
Passenger's Temperature Lever
The lever on the right adjusts the air temperature on
the passenger's side independent of the temperature
set by the driver. Slide the lever upward to raise the
temperature. Slide the lever downward to lower
the temperature.
Mode Knob
The knob on the right side of the control panel has
several settings to control the direction of airflow:
(Vent): This setting directs air through the
instrument panel outlets.
(Bi-level): This setting directs air two ways.
Half of the air is directed through the instrument panel
outlets. Most of the remaining air is directed through
the floor vents and a small amount to the windshield
defroster and side window outlets.

3-3
(Floor): This setting sends most of the air through
the floor ducts. The remaining air comes out of the
defroster and side window outlets. The recirculation
button cannot be selected in this mode.
(Defogger): This setting sends half of the air
to the floor ducts and half to the defroster and side
window outlets. The air conditioning compressor will
run automatically in this setting unless the outside
temperature is below 40
F (4
C). The air inlet will
also be automatically set to outside air. The recirculation
button cannot be selected in this mode.
(Defroster): This setting directs most of the air
through the defroster and side window vents. Some of
the air also goes to the floor ducts. The air conditioning
compressor will run automatically in this setting
unless the outside temperature is below 40
F (4
C).
The air inlet will also be automatically set to outside air.
The recirculation button cannot be selected in this mode.Mode Buttons
(Outside Air): Press this button to force the
system to use outside air. This button is usable in all of
the mode settings. An indicator on the button will light
up when this button is selected.
(Recirculation): Press this button to limit the
amount of outside air entering your vehicle. This is
helpful when you are trying to limit odors entering your
vehicle. This button can be used in the vent and bi
-level
modes. An indictor on the button will light up when this
button is selected. The system will default back to the
outside air setting, so you will have to reselect this
setting every time you restart your vehicle.
While in the recirculation mode the system may cause
fogging of the windows when the weather is cold and
damp. To clear the fog, select either the defogger or
defroster mode and increase the fan speed. To avoid
refogging of the windows, use the outside air setting.
A/C (Air Conditioning): Press this button to turn
the air conditioning on and off. The system will cool and
dehumidify the air inside the vehicle when the A/C light
and the fan are on.

3-4 Air Conditioning
On very hot days, open the windows long enough to
let hot, inside air escape. This reduces the time for the
vehicle to cool down. Then keep your windows closed
for the air conditioner to work its best.
For quick cool down on very hot days select a fan
setting, turn the mode knob on the control panel to vent;
press the A/C and the recirculation buttons and move the
temperature controls all the way into the blue area. If
this setting is used for long periods of time, the air in
your vehicle may become too dry.
For normal cooling on hot days, turn the mode knob
on the control panel to vent; press the A/C and the
outside air buttons and move the temperature control all
the way into the blue area. The system will bring in
outside air and cool and dehumidify it.
On cool, but sunny days, the sun may warm your upper
body, but your lower body may not be warm enough.
To remedy this you can select a fan setting, turn the
mode knob on the control panel to the bi
-level mode,
press the A/C button, and move the temperature control
to a comfortable setting.
Heating
On cold days, select a fan setting, turn the mode knob on
the control panel to floor, press the outside air button on
and move the temperature control all the way in the red
area. The system will bring in outside air, heat it and
send it to the floor ducts.
Ventilation
For mild outside temperatures when little heating or
cooling is needed, select a fan setting and turn the mode
knob on the control panel to vent. Press the outside
air button and move the temperature controls to a
comfortable setting. Your vehicle also has the
flow
-through ventilation system described later
in this section.
Defogging and Defrosting
Your system has two settings for clearing the front and
side windows. To defrost the windows quickly, use
defroster with the temperature controls all the way in the
red area. To warm passengers while keeping the
windows clear, use defogger. For more information,
see ªRecirculationº in the Index.