air conditioning Lexus ES330 2004 Destination Input and Route Guidance / LEXUS 2004 ES330 (OM33633U) User Guide

AIR CONDITIONING
197
20E396
Driver side setting
Passenger side setting
Mixed settingSETTING OPERATION Ð manual control
When one of the manual control buttons is depressed
while operating in automatic mode, the mode relevant to
the depressed button is set. Other conditions continue to
be adjusted automatically.
If manual air flow selection is desired Ð
The outlets from which air is delivered can be selected
manually by pushing the button. The function of each mode is
as follows:
1Panel Ð Air flows mainly from the instrument panel vents.
2Bi-level Ð Air flows from both the floor vents and the
instrument panel vents.
3Floor Ð Air flows mainly from the floor vents.
4Floor/Windshield Ð Air flows mainly from the floor vents
and windshield vents.

AIR CONDITIONING
198If quick heating or cooling is desired Ð
Push the TEMPº or PASSENGER TEMPº button on either
side and hold it until MAX. HOTº or MAX. COLDº appears on
the display.
If manual fan speed control is desired Ð

1Fan speed at low2Fan speed at high
The fan speed can be set to your desired speed by pushing the
appropriate side of fan speed control button. The higher the fan
speed is, the more air is delivered. Pushing the OFFº button
turns off the fan.
To remove exterior windshield frost, use the high speed setting.If manual switching of air intake is desired Ð
The air intake control button is used to switch the air intake
between the OUTSIDE AIR mode and RECIRCULATED AIR
mode.
To turn the air source to the RECIRCULATED AIR mode, press
the button. The indicator will come on. To turn the air source
to OUTSIDE AIR mode, press the button again. The indicator
will go off.
To prevent fogging up of the windshield, the air intake mode
may change automatically to the OUTSIDE AIR mode
depending on the condition of the air conditioning system.
For example, when the ambient temperature is low, the air
intake mode may change automatically to the OUTSIDE AIR
mode. This is not a malfunction.
If quick circulation of cooled air is desired, push the air intake
control button for RECIRCULATED AIR. The indicator light will
come on.

AIR CONDITIONING
199 For normal use, it is best to keep the air intake control button
set to OUTSIDE AIR mode. If recirculated air is used during
heating, the windows will fog up more easily.
If manual on-off of the air conditioning is desired Ð
Push the A/Cº button to turn the air conditioning on and push
it again to turn the air conditioning off.
The air conditioning does not work if the outside temperature
is lowered down to around 0C (32F).
If the system is used for ventilation, heating in dry weather or
removing frost or exterior fog on the windshield, turn the air
conditioning off once it is no longer required. This will improve
fuel economy. The air conditioning can be used for year-round
automatic temperature control including cooling and
dehumidifying operation.
If the air conditioning compressor does not operate, the
indicator of the A/Cº button will blink. If the indicator of the
A/Cº button blinks even when the A/Cº button is pushed
again, have the compressor checked by your nearest Lexus
dealer.
Displaying the outside temperature Ð
The temperature display ranges from -30C (-22F) up to
50C (122F).
(b) Windshield defogging and defrosting
To remove interior fog on the windshield Ð
Push the windshield air flow button.
To remove frost or exterior fog on the windshield Ð
1. Push the TEMPº button to set the maximum temperature.
2. Push the windshield air flow button.
3. Push the fan speed control button on the right side to obtain
a maximum air flow.
4. Leave the A/Cº button off.
When the windshield air flow button is pushed, air flows mainly
from the windshield vents and turns on the defogging function
with the purpose of clearing the front view.
Pushing this button once again returns the air flow mode to the
last one used.

AIR CONDITIONING
200This button allows the air intake to select OUTSIDE AIR mode
automatically. This is to clean up the front view more quickly.
If you want to return the setting to RECIRCULATED AIR mode,
push the air intake control button once again.
Push the A/Cº button for dehumidified heating or cooling. This
setting clears the front view more quickly.
CAUTION
Do not use the windshield air flow button during cooled
air operation in extremely humid weather. The
difference between the temperature of the outside air
and that of the windshield could cause the outer surface
of the windshield to fog up blocking your vision.
(c) Operating tips
To help cool down the interior after parking in the hot sun,
drive for the first few minutes with the windows open. After
the excess heat has blown away, close the windows.
Make sure the air inlet grilles in front of the windshield are
not blocked by leaves or other obstructions.
If air flow control is not satisfactory, check the side vents and
rear vents. (See (d) Side vents and rear ventsº.)
On humid days, do not blow cold air on the windshield. The
windshield could fog up because of the difference in air
temperature on the inside and outside of the windshield.
Keep the area under the front seats clear to allow air to
circulate throughout the vehicle.
On cold days, set the fan speed to high for a minute to help
clear the intake ducts of snow or moisture. This can reduce
the amount of fogging on the windows.
When driving on dusty roads, close all windows. If dust
thrown up by the vehicle is still drawn into the vehicle after
closing the windows, it is recommended that the air intake
be set to the OUTSIDE AIR mode and the fan speed to any
setting except OFFº.

AIR CONDITIONING
201 If following another vehicle on a dusty road, or driving in
windy and dusty conditions, it is recommended that the air
intake be temporarily set to the RECIRCULATED AIR
mode, which will close off the outside passage and prevent
outside air and dust from entering the vehicle interior.Heating
For best results, set controls to:
For automatic operation Ð
Push in the AUTOº button.
Temperature Ð To the desired temperature
Air intake Ð OUTSIDE AIR
Air conditioning Ð OFF
For manual operation Ð
Fan speed Ð To the desired fan speed
Temperature Ð Towards high temperature
Air intake Ð OUTSIDE AIR
Air flow Ð FLOOR
Air conditioning Ð OFF
For quick heating, select RECIRCULATED AIR for a few
minutes. To keep the windows from fogging, select
OUTSIDE AIR after the vehicle interior has been warmed.
Push the A/Cº button on for dehumidified heating.
Choose floor/windshield air flow to heat the vehicle interior
while defrosting or defogging the windshield.Air conditioning
For best results, set controls to:
For automatic operation Ð
Push in the AUTOº button.
Temperature Ð To the desired temperature
Air intake Ð OUTSIDE AIR
Air conditioning Ð ON
For manual operation Ð

AIR CONDITIONING
202Fan speed Ð To the desired fan speed
Temperature Ð Towards low temperature
Air intake Ð OUTSIDE AIR
Air flow Ð PANEL
Air conditioning Ð ON
For quick cooling, select RECIRCULATED AIR for a few
minutes.
VentilationFor best results, set controls to:
For automatic operation Ð
Push in the AUTOº button.
Temperature Ð Towards low temperature
Air intake Ð OUTSIDE AIR
Air conditioning Ð OFF

AIR CONDITIONING
203 For manual operation Ð
Fan speed Ð To the desired fan speed
Temperature Ð Towards low temperature
Air intake Ð OUTSIDE AIR
Air flow Ð PANEL
Air conditioning Ð OFF
Defogging and defrosting
Ð The inside of the windshieldFor best results, set controls to:
For automatic operation Ð
Temperature Ð Towards high temperature to heat;
low temperature to cool
Air intake Ð OUTSIDE AIR
Air flow Ð WINDSHIELD
For manual operation Ð
Fan speed Ð To the desired fan speed
Temperature Ð Towards high temperature to heat;
low temperature to cool
Air intake Ð OUTSIDE AIR
Air flow Ð WINDSHIELD
When the windshield air flow button is pushed, air flows mainly
from the windshield vents and turns on the defogging function
with the purpose of clearing the front view.
Pushing this button once again returns the air flow mode to the
last one used.This button allows the air intake to select OUTSIDE AIR mode
automatically. This is to clean up the front view more quickly.
If you want to return the setting to RECIRCULATED AIR mode,
push the air intake control button once again.
Push the A/Cº button for dehumidified heating or cooling. This
setting clears the front view more quickly.
On humid days, do not blow cold air on the windshield Ð the
difference between the outside and inside temperatures
could make the fogging worse.
Ð The outside of the windshield

AIR CONDITIONING
204For best results, set controls to: For automatic operation Ð
Temperature Ð Towards high temperature
Air intake Ð OUTSIDE AIR
Air flow Ð WINDSHIELD
For manual operation Ð
Fan speed Ð To the desired fan speed
Temperature Ð Towards high temperature
Air intake Ð OUTSIDE AIR
Air flow Ð WINDSHIELD

AIR CONDITIONING
205 When the windshield air flow button is pushed, air flows mainly
from the windshield vents and turns on the defogging function
with the purpose of clearing the front view.
Pushing this button once again returns the air flow mode to the
last one used.
This button allows the air intake to select OUTSIDE AIR mode
automatically. This is to clean up the front view more quickly.
If you want to return the setting to RECIRCULATED AIR mode,
push the air intake control button once again.
Push the A/Cº button for dehumidified heating or cooling. This
setting clears the front view more quickly.
To heat the vehicle interior while defrosting the windshield,
choose floor/windshield air flow.
(d) Side vents and rear vents

Side vents

Rear vents
If air flow control is not satisfactory, check the side vents
and rear vents. The side vents and rear vents may be
opened or closed as shown.

AIR CONDITIONING
206
(e) Checking and replacing the air conditioning
filter
The air conditioning filter information label is placed in the
glove box as shown and indicates that a filter has been
installed.
The air conditioning filter prevents dust from entering the
vehicle through the air conditioning vent.
The air conditioning filter is behind the glove box.
The air conditioning filter may clog after long use. The filter
may need to be replaced if the air flow of the air conditioner and
heater experiences extreme reductions in operating efficiency,
or if the windows begin to fog up easily.
To maintain the air conditioning efficiency, inspect and replace
the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, such
as inner city or desert areas, early replacement may be
required. (For scheduled maintenance information, please
refer to the Owner's Manual Supplement/Scheduled
Maintenanceº.)