2001 CHEVROLET IMPALA ECO mode

3-6 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, turn the mode
knob on the control panel to UPPER; push the A/C
button on; push the RECIRCULATION button on and
move the temperature control(s) 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 UPPER; push the A/C button on;
push the OUTSIDE AIR button on and move the
temperature control all the way into the blue area. The
system will bring in outside air and cool 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 turn the mode knob on the
control panel to BI
-LEV. Push the A/C button on and
move the temperature control to a comfortable setting.
Heating
On cold days, turn the mode knob on the control panel
to LOWER, push 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, turn the mode knob on the control
panel to UPPER; push the A/C button off; push the
OUTSIDE AIR button on and move the temperature
control(s) 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
DEFROST with the temperature control(s) all the way
in the red area. To warm passengers while keeping the
windows clear, use DEFOG. For more information,
see ªRecirculationº in the Index.

3-8 Ventilation System
Adjust the direction
of airflow by moving
the vents.
Your vehicle's flow
-through ventilation system supplies
outside air into the vehicle when it is moving. Outside
air will also enter the vehicle when the air conditioning
fan is running and the OUTSIDE AIR button is pushed.
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 in
the Index.Ventilation Tips

Keep the hood and front air inlet free of ice, snow or
any other obstruction (such as leaves). The heater
and defroster will work far better, reducing the
chance of fogging the inside of your windows.

When you enter a vehicle in cold weather, adjust the
mode knob to LOWER and the fan to the highest
speed for a few seconds before driving off. This
helps clear the intake ducts of snow and moisture
and reduces the chance of fogging the inside of
your windows.

Keep the air path under the front seats clear of
objects. This helps air to circulate throughout
your vehicle.

3-9
Audio Systems
Your audio system has been designed to operate easily
and give years of listening pleasure. You will get the
most enjoyment out of it if you acquaint yourself with it
first. Find out what your audio system can do and how
to operate all its controls, to be sure you're getting the
most out of the advanced engineering that went into it.
Setting the Clock
Press and hold the HR or MIN arrow for two seconds.
Then press the HR arrow until the correct hour appears.
Press and hold the MIN arrow until the correct minute
appears. The clock may be set with the ignition on
or off.
Setting the Clock for Systems with
Radio Data System
Press and hold the HR or MN buttons, located below the
tune knob, for two seconds. Then press and hold HR
until the correct hour appears. AM or PM will appear on
the display. Press and hold MN until the correct minute
appears. The clock may be set with the ignition on or
off. The clock symbol will appear on the display in
time
-set mode.
To set the clock to the time of an FM station
broadcasting Radio Data System (RDS) information,
press and hold HR and MN at the same time for
two seconds until UPDATED and the clock symbol
appear on the display. If the time is not available
from the station, NO UPDAT will appear on the
display instead.

3-11
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) by
performing the following steps:
1. Turn the radio on.
2. Press AM FM to select the band.
3. Tune in the desired station.
4. Press and hold one of the six numbered buttons until
you hear a beep. Whenever you press that numbered
button, the station you set will return.
5. Repeat the steps for each pushbutton.
Setting the Tone
BASS: Press and release AUDIO repeatedly until
BAS appears on the display. Then press and hold the
up arrow to increase bass. ªBº and a positive number
will appear on the display. Press and hold the down
arrow to decrease bass. B and a negative number will
appear on the display. B and a zero will appear on the
display when the bass level is set to the middle position.
Release the up or down arrow when you find the bass
level you want or when the maximum or minimum level
is reached.TREBLE: Press and release AUDIO until TRE appears
on the display. Then press and hold the up arrow to
increase treble. ªTº and a positive number will appear
on the display. Press and hold the down arrow to
decrease treble. T and a negative number will appear
on the display. T and a zero will appear on the display
when the treble level is set to the middle position.
Release the up or down arrow when you find the treble
level you want or when the maximum or minimum level
is reached. If a station is weak or noisy, you may want
to decrease the treble.
To set BASS or TREBLE to the middle position,
select the desired tone control. Then press and hold
AUDIO for more than two seconds until you hear a
beep. B and a zero or T and a zero will appear on the
display. To set all of the tone controls and speaker
controls to the middle position, end out of audio mode.
Then press and hold AUDIO for more than two seconds
until you hear a beep. CEN will appear on the display.

3-12
Adjusting the Speakers
BALANCE: Press and release AUDIO until BAL
appears on the display. Then press and hold the up arrow
to move the sound to the right speakers or the down
arrow to move the sound to the left speakers. ªRº and
a number will appear on the display when the sound is
balanced toward the right speakers. ªLº and a number
will appear on the display when the sound is balanced
toward the left speakers. L and a zero will appear on
the display when the sound is balanced between the
speakers. Release the up or down arrow when you find
the speaker balance you want or when the maximum
or minimum level is reached.
FADE: Press and release AUDIO until FAD appears on
the display. Then press and hold the up arrow to move
the sound to the front speakers or the down arrow to
move the sound to the rear speakers. ªFº and a number
will appear on the display when the sound is balanced
toward the front speakers. ªRº and a number will appear
on the display when the sound is balanced toward the
rear speakers. F and a zero will appear on the display when the
sound is balanced between the speakers. Release the
up or down arrow when you find the speaker balance
you want or when the maximum or minimum level
is reached.
To set BALANCE or FADE to the middle position,
select the desired speaker control. Then press and hold
AUDIO for more than two seconds until you hear a
beep. L and a zero or F and a zero will appear on the
display. To set all of the tone controls and speaker
controls to the middle position, end out of audio mode.
Then press and hold AUDIO for more than two seconds
until you hear a beep. CEN will appear on the display.
Radio Calibration
Your audio system has been calibrated for your vehicle
from the factory. If CAL appears on the display it means
that your radio has not been configured properly for
your vehicle and must be returned to the dealership
for service.

3-14
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) by
performing the following steps:
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 radio will produce one beep. 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 and hold one of the arrows for more
than two seconds. The radio will produce one beep.
Use P SCAN 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. SCAN will be
displayed whenever the tuner is in the P SCAN mode.
The channel number (P1 through P6) will appear with
the frequency. In FM mode, this function will scan
through the current band such as FM1 or FM2.
Setting the Tone
BASS: Press and release the P
-TYPE LIST/AUDIO
knob until BASS appears on the display. Then turn the
knob clockwise to increase bass and counterclockwise
to decrease bass. The display will show the bass level.
When you use this control, the radio's AUTO TONE
setting will switch to manual. To set bass to the middle
position, select the control and press and hold the
P
-TYPE LIST/AUDIO knob. The radio will produce
one beep and set the display level to the middle position.
To set all tone and speaker controls to the middle
position, press and hold the P
-TYPE LIST/AUDIO
knob when no tone or speaker control is active. The
radio will produce one beep and display ALL with
the level display in the middle position.

3-20
PREV (1): Press this button or the left SEEK arrow to
go to the previous selection on the tape if the selection
has been playing for less than three seconds. If the
PREV button or the left SEEK arrow is pressed
and the current selection has been playing for more than
13 seconds, it will go to the beginning of the current
selection. If the PREV button or the left SEEK arrow
is pressed and the current selection has been playing
from 3 to 13 seconds, it will go to the beginning of
the previous selection or the beginning of the current
selection, depending upon the position on the tape.
SEEK and a ª
-1º will appear on the display while
the cassette player is in PREV mode. If PREV or the
left SEEK arrow is pressed additional times or held,
the radio will go to the displayed number of previous
selections up to ª9.º SEEK and a negative number
will appear on the display. Your tape must have at least
three seconds of silence between each selection for
PREV to work. The sound will mute while seeking.NEXT (2): Press this button to go to the next selection
on the tape. If you press the button more than once,
the player will continue moving forward through the
tape. SEEK and a positive number will appear on the
display. Your tape must have at least three seconds
of silence between each selection for NEXT to work.
To forward through each selection press the right SEEK
arrow. The sound will mute while seeking.
REV (3): Press this button to reverse the tape rapidly.
Press it again to return to playing speed. The radio will
play the last selected station while the tape reverses. The
station frequency and REV will appear on the display.
You may select stations during REV operation by using
TUNE, SEEK and P SCAN controls.
FWD (4): Press this button to advance quickly to
another part of the tape. Press the button again to return
to playing speed. The radio will play the last selected
station while the tape advances. The station frequency
and FWD will appear on the display. You may select
stations during FWD operation by using TUNE, SEEK
and P SCAN controls.

3-24
P SCAN: Press and hold one of the arrows for more
than two seconds. The radio will produce one beep.
Use P SCAN 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. SCAN will be
displayed whenever the tuner is in the P SCAN mode.
The channel number (P1 through P6) will appear with
the frequency. In FM mode, this function will scan
through the current band such as FM1 or FM2.
Setting the Tone
BASS: Press and release the P
-TYPE LIST/AUDIO
knob until BASS appears on the display. Then turn the
knob clockwise to increase bass and counterclockwise
to decrease bass. The display will show the bass level.
When you use this control, the radio's AUTO TONE
setting will switch to manual. To set bass to the middle
position, select the control and press and hold the
P
-TYPE LIST/AUDIO knob. The radio will produce one beep and set the display
level to the middle position. To set all tone and speaker
controls to the middle position, press and hold the
P
-TYPE LIST/AUDIO knob when no tone or
speaker control is active. The radio will produce
one beep and display ALL with the level display in
the middle position.
TREBLE: Press and release the P
-TYPE LIST/AUDIO
knob until TREB appears on the display. Turn the knob
clockwise to increase treble and counterclockwise to
decrease treble. The display will show the treble level.
When you use this control, the radio's AUTO TONE
setting will switch to manual. If a station is weak or
noisy, you may want to decrease the treble. To set treble
to the middle position, select the control and press and
hold the P
-TYPE LIST/AUDIO knob. The radio
will produce one beep and set the display level to the
middle position. To set all tone and speaker controls
to the middle position, press and hold the P
-TYPE
LIST/AUDIO knob when no tone or speaker control
is active. The radio will produce one beep and display
ALL with the level display in the middle position.