1999 Lexus ES300 Owner's Manuals (in English)

AIR CONDITIONING AND AUDIO
205
20E004±1
2. Turn the ºTEMPº knob until the desired
temperature is displayed.
The ºTEMPº knob is used to set the desired passenger
compartment temperature. The temperature of air
delivered to the passenger compartment will be
controlled automatically according to the setting. The
figures on the panel indicate degrees Fahrenheit or
Centigrade.SETTING OPERATION ± manual control
If manual air flow selection is desired ±

AIR CONDITIONING AND AUDIO
206
20E005±1
The outlets from which air is delivered can be selected
manually by pushing the button. The function of each
mode is as follows:
1Panel ± Air flows mainly from the instrument panel
vents.
2 Bi±level ± Air flows from both the floor vents and
the instrument panel vents.
3 Floor ± Air flows mainly from the floor vents.
4Floor/Windshield ± Air flows mainly from the floor
vents and windshield vents. If quick heating or cooling is desired ±
Turn the ºTEMPº knob until ºMAX. HOTº or ºMAX.
COLDº appears on the display.
When the ºMAX. COLDº is selected, the air intake is
automatically set to ºRECIRCULATED AIRº mode.
If manual fan speed control is desired ±

AIR CONDITIONING AND AUDIO
207
20E006±2

1Fan speed at low 2Fan 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 ºOFFº button turns off the fan.
To remove exterior windshield frost, use the high speed
setting. If manual switching of air intake is desired ±

AIR CONDITIONING AND AUDIO
208
20E007±1

AIR CONDITIONING AND AUDIO
209
The air intake control button is used to switch the air
intake between the OUTSIDE AIR mode and
RECIRCULATED AIR mode.
With the button in the OUTSIDE AIR mode, the
OUTSIDE AIR mode indicator light will come on and the
system will take fresh outside air into the vehicle.
If quick circulation of cooled air is desired, push the air
intake control button for RECIRCULATED AIR. The
RECIRCULATED AIR mode indicator light will come on.
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 the engine coolant temperature becomes extremely
high, the RECIRCULATED AIR mode is automatically
selected. This is not a malfunction. When the engine
coolant temperature is lowered, the previous mode
resumes.
If manual on±off of the air conditioning is desired ±
Push the ºA/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 0 C (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 ºA/Cº button will blink. If the indicator of
the ºA/Cº button blinks even when the ºA/Cº button is
pushed again, have the compressor checked by your
nearest Lexus dealer.
Displaying the outside temperature ±
When you push the ºOUTSIDE TEMPº knob, the
temperature display shows the outside temperature. To
return to the display of the current set temperature, push
the knob again. The temperature display ranges from
±30 C (±22 F) up to 50C (122F).

AIR CONDITIONING AND AUDIO
210
(b) Windshield defogging and defrosting
20E008±1
To remove interior fog on the windshield ±
Push the ºFRONT WINDSHIELDº button.
To remove frost or exterior fog on the windshield ±
1. Turn the ºTEMPº knob at the maximum temperature.
2. Push the ºFRONT WINDSHIELDº button.
3. Push the fan speed control button on the right side to
obtain a maximum air flow.
4. Leave the air conditioning on±off button off.When
the ºFRONT WINDSHIELDº button is pushed, the
air conditioning is set to operate and the OUTSIDE AIR
mode is set.
If you push the ºFRONT WINDSHIELDº button once
again while in the FRONT WINDSHIELD mode, the
mode then returns to the last mode used.

AIR CONDITIONING AND AUDIO
211
CAUTION
Do not use the ºFRONT WINDSHIELDº 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.

AIR CONDITIONING AND AUDIO
212
(c) Operating tips
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
dashboard vents. (See ºSide ventsº.)
 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.
 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 control button be left to the
OUTSIDE AIR mode and the fan speed control button
be pressed to anywhere except the ºOFFº button.
 If following another vehicle on a dusty road, or driving
in windy and dusty conditions, it is recommended that
the air intake control button be temporarily pressed in
to the RECIRCULATED AIR mode, which will close
off the outside passage and prevent outside air and
dust from entering the vehicle interior.