lexus LS400 1994 Gauges, Meters and Service Reminder Indicators / 1994 LS400: AIR CONDITIONING AND AUDIO

SECTION 2
87
AIR CONDITIONING AND AUDIO
Automatic air conditioning controls88 . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio system94 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

AIR CONDITIONING AND AUDIO
Front windshield buttonTemperature
(in degrees fahrenheit
or centigrade)
Fan speed control buttons
Low speed
Medium speed
High speed
Air conditioning on-off button
OFF button
Automatic button
Temperature control button
Air intake control buttonAir flow control buttons
Face
Bi-levelFloor
Floor/Windshield
88
AUTOMATIC AIR CONDITIONING CONTROLS

AIR CONDITIONING AND AUDIO
Face
Bi-level
Floor
Floor/Windshield
Windshield
Air flow selection
89

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
91 If quick heating or cooling is desired −
Push the “TEMP” button on either side and hold it until
“MAX.HOT” or “MAX.COLD” appears on the display.
If manual fan speed control is desired −
The fan speed can be set to your desired speed by pressing
in the appropriate fan speed control button. The higher the fan
speed is, the more air is delivered. Pressing in the “OFF” button
turns off the fan.
To remove exterior windshield frost, use the high speed
setting.
Stopping the fan −
Press in the
(OFF) button.
The fan stops in automatic mode or manual mode.
If manual switching of air intake is desired −
(AIR INTAKE) 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, press in 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
for outside air. If recirculated air is used during heating, the
windows will fog up easier.If manual on-off of the air conditioning is desired −
Push the
(A / C) button to turn the air conditioning on and
push it again to turn the air conditioning off.
If the system is used for ventilation, heating in dry weather or
removing the frost or exterior fog on the windshield, press the
air conditioning on − off button once again. This turns off the air
conditioning and improves fuel economy. For year-round
automatic temperature control including cooling and
dehumidifying operation, use the air conditioning.
When the air conditioning compressor does not operate, the
(A / C) button will blink. If the (A / C) button blinks
even when the (A / C) button is pushed again, have the
compressor checked by your nearest Lexus dealer.

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.

AIR CONDITIONING AND AUDIO
93
Center vents
The center vents may be opened or closed as shown.
Side vents
The side vents may be opened or closed as shown.
Rear vents
The rear vents may be opened or closed as shown.

AIR CONDITIONING AND AUDIO
94
AUDIO SYSTEM
Car audio operating tips
You can listen to the car audio when the ignition key is at
“ON” or “ACC”. However, if the engine is not running, the
key must be in the “ACC” position.
NOTICE:
To prevent the battery from being discharged, do not
leave the car audio on for a long period when the engine
is not running.
Audio operation is described in detail on the following pages:

Radio operation − See page 95.

Cassette tape player operation − See page 99.

Compact disc player operation − See page 105.

Anti-theft system − See page 111.
Without compact disc player
With compact disc player

AIR CONDITIONING AND AUDIO
“PWR. VOL” knob
(For turning radio on
and adjusting volume)
“AM” button
(For turning radio on
and selecting AM)
“FM1” button
(For turning radio on
and selecting FM)
“FM2” button
(For turning radio on
and selecting FM)
Radio display
Station selector
buttons (1-6)
“FADER” knob
(For front and rear
sound balance)
“BALANCE” knob
(For right and left
sound balance)
“TREBLE” knob
(For treble control)
“MID” knob
(For mid range control)
“BASS” knob
(For bass control)
“SCAN” button
(For preset scan tuning
and scan tuning)
“TUNE SEEK” button
(For frequency tuning)
Without compact disc player
95
Radio operation

AIR CONDITIONING AND AUDIO
With compact disc player
“PWR. VOL” knob
(For turning radio on
and adjusting volume)
“AM” button
(For turning radio on
and selecting AM)
“FM 1/2” button
(For turning radio on
and selecting FM)
Radio display
Station selector
buttons (1-6)
“FADER” knob
(For front and rear
sound balance)
“BALANCE” knob
(For right and left
sound balance)
“TREBLE” knob
(For treble control)
“MID” knob
(For mid range control)
“BASS” knob
(For bass control)
“TUNE SEEK” button
(For frequency tuning)
“SCAN” button
(For preset scan tuning
and scan tuning)
96