2000 CHEVROLET IMPALA Owners Manual

yellowblue
3-2
Comfort Controls
Manual Single Zone Climate Control
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 controls
the fan speed. To turn the fan off, turn the knob to OFF.
If airflow seems very low when the fan knob is turned 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.Temperature Knob
The center knob on the control panel changes the
temperature of the air coming through the system. Turn
this knob toward red (clockwise) for warmer air. Turn it
toward blue (counterclockwise) for cooler air.
Mode Knob
The right knob on the control panel has several settings
to control the direction of airflow:
UPPER: 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 little to the windshield defroster and
side window outlets.
LOWER: This setting sends most of the air
through the ducts near the floor. The remaining air
comes out of the defroster and side window outlets.

yellowblue
3-3
DEFOG: 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). Air inlet will also be
automatically set to outside air. The RECIRCULATION
button will not be selectable in this mode.
DEFROST: 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 will not be selectable in
this mode.
OUTSIDE AIR: Press this button to force the
system to use outside air. This button is usable with 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 fresh air entering your vehicle. This is
helpful when you are trying to limit odors entering your
vehicle. This button is usable in UPPER, LOWER and
BI
-LEVEL modes. An indicator 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.
A/C: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 is on.

yellowblue
3-4 Dual ComforTemp Climate Control
(If Equipped)
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
controls 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 may need to be
replaced. See ªMaintenance Scheduleº 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.

yellowblue
3-5
Mode Knob
The knob on the right side of the control panel has
several settings to control the direction of airflow:
UPPER: This setting directs air through the
instrument panel outlets.
BI-LEV: 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 little to the windshield defroster and
side window outlets.
LOWER: This setting sends most of the air
through the ducts near the floor. The remaining air
comes out of the defroster and side window outlets.
DEFOG: 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). Air inlet will also be
automatically set to outside air. The RECIRCULATION
button will not be selectable in this mode.
DEFROST: 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 will not be selectable
in this mode.
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 fresh air entering your vehicle. This is
helpful when you are trying to limit odors entering your
vehicle. This button is usable in UPPER, LOWER and
BI
-LEVEL modes. An indictor on the button will light
up when this button is selected.
A/C: 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 is on.

yellowblue
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 levers all the way in 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 levers all the way in 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.
You can turn the mode knob on the control panel to
BI
-LEV, push the A/C button on and move the
temperature levers 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 levers 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
levers 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 indicators turned all the
way in the red area. To warm passengers while keeping
the windows clear, use DEFOG.

yellowblue
3-7 Rear Window Defogger
The rear window
defogger uses a
warming grid to
remove fog from
the rear window.
Press the button
marked REAR to
turn the defogger on.
An indicator on the
button will light.
The rear window defogger will turn itself off after about
15 minutes. If you turn it on again, the defogger will
only run for about 7.5 minutes before turning off. You
can also turn the defogger off by turning the ignition off
or by pressing the button again.
Do not attach anything like a temporary vehicle license
or decal across the defogger grid.
NOTICE:
Don't use a razor blade or something else sharp
on the inside of the rear window. If you do, you
could cut or damage the warming grid, and the
repairs wouldn't be covered by your warranty.
Don't put decals there because you might have to
scrape them off.

yellowblue
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.

yellowblue
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 for Systems without Radio
Data System
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.
Setting the Clock for Systems with Radio
Data System
Press and hold HR or MN 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 a 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.