climate control lexus LS400 1994 Engine / 1994 LS400: AIR CONDITIONING AND AUDIO

AIR CONDITIONING AND AUDIO
90The automatic air conditioning automatically maintains the set
temperature.
This air conditioning features automatic fan speed and air flow
control which automatically selects the most suitable fan
speed and air flow to control the temperature. The ignition key
must be in the “ON” position.
You may use manual controls to override the automatic
settings.
(a) Climate control
SETTING OPERATION − automatic control
1. Press in the
(AUTO) button.
Air flow quantity, switching of the diffusers, on-off of the air
conditioning, and switching of the air intake between
RECIRCULATED AIR and OUTSIDE AIR are automatically
adjusted. The operation status is shown by each indicator.
When one of the manual control buttons is depressed while
operating in automatic mode, the operation corresponding to
the button depressed is set. Other conditions continue to be
adjusted automatically.
2. Press in the
(TEMP) button and hold it until the
desired temperature is displayed.
(TEMP) button 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 −
The outlets from which air is delivered can be selected
manually by pressing in the appropriate air flow control button.
The function of each button is as follows:
FACE button − Directs air flow at face level.
BI-LEVEL button − Directs air flow at face level and at
floor level front and rear. Except in ventilation, the air to the floor
is slightly warmer than air to the face.
FLOOR button − Directs air flow mostly at floor level
frIf cold adont and rear.
FLOOR / WINDSHIELD button − Directs air flow to the
windshield and front side windows as well as floor level front
and rear.
FRONT WINDSHIELD button − Directs air flow mostly
to the windshield and front side windows.
When this button is depressed while operating in automatic
mode, the air conditioning is set to operate and the OUTSIDE
AIR mode is set.
If you push the “FRONT WINDSHIELD” button once again
while in the FRONT WINDSHIELD mode, the mode then
returns to the last mode used.
CAUTION:
Do not use the FRONT WINDSHIELD 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
92
(b) Windshield defogging and defrosting
See “(a) Climate control” for details on each button.
To remove interior fog on the windshield −
1. Press in the
(WINDSHIELD) button of the air flow
control buttons.
2. Turn on the
(A / C) button.
3. Set the OUTSIDE AIR mode.
To remove frost or exterior fog on the windshield −
1. Place the temperature control button at the maximum
temperature.
2. Press in the
(WINDSHIELD) button of the air flow
control buttons.
3. Press in the
(Hi) button of the fan speed control button.
4. Leave the air conditioning on-off buttons off.
(c) Operating tips

Be 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 “Center vents”, “Side vents” and “Rear vents”.)

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
“OFF” 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.

The air filter may clog after long use and reduce the air flow.
Have it inspected by your Lexus dealer according to the
maintenance schedule.