lexus LS400 1995 Engine / 1995 LS400: AIR CONDITIONING AND AUDIO

SECTION 2
91
AIR CONDITIONING AND AUDIO
Automatic air conditioning controls92 . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio system102 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

AIR CONDITIONING AND AUDIO
92
AUTOMATIC AIR CONDITIONING CONTROLS

The 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.NOTICE
To prevent the battery from being discharged, do not
leave the air conditioning on longer than necessary
when the engine is not running.

AIR CONDITIONING AND AUDIO
93
1 Driver side temperature control button
2 Front windshield button
3 Driver side temperature display (in degrees
Fahrenheit or Centigrade)
4 Fan speed display
5 Air intake control button
6 Air flow display
7 Air conditioning on−off button
8 Passenger side temperature control button
9 Passenger side temperature display (in degrees
Fahrenheit or Centigrade)
10 Separate / dual control button
11 Air flow control button
12 Fan speed control button
13 Automatic control button
14 OFF button

AIR CONDITIONING AND AUDIO
94

Air flow selection

AIR CONDITIONING AND AUDIO
95
(a) Climate control
SETTING OPERATION − automatic control
1. Push 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.
Push the “OFF” button to turn the air conditioning off.
2. Use the “TEMP” or “PASSENGER TEMP” button to set
the desired temperature.
The “TEMP” or “PASSENGER TEMP” button is used to set the
desired temperature. The temperature will be controlled on the
driver and passenger sides simultaneously or individually.
“TEMP” button − Changes the temperature on the driver and
passenger sides simultaneously or the driver side only.
“PASSENGER TEMP” button − Changes the temperature on
the passenger side only.
“DUAL” button − Changes the mode of the temperature
setting.
The indicator on the “DUAL” button has two modes:
With the indicator on − For individual temperature setting
With the indicator off − For simultaneous temperature
setting

AIR CONDITIONING AND AUDIO
96
Driver side setting
Passenger side setting
Mixed settingSETTING 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:
1 Panel − 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.
4 Floor / Windshield − Air flows mainly from the floor vents
and windshield vents.

AIR CONDITIONING AND AUDIO
97 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 −

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

AIR CONDITIONING AND AUDIO
98If 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 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 / C” button will blink. If the indicator of the
“A / C” button blinks even when the “A / C” button is pushed
again, have the compressor checked by your nearest Lexus
dealer.
(b) Windshield defogging and defrosting
To remove interior fog on the windshield −
Push the “FRONT WINDSHIELD” button of the air flow control
buttons.
To remove frost or exterior fog on the windshield −
1. Place the temperature control button at the maximum
temperature.
2. Push the “FRONT WINDSHIELD” button of the air flow
control 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.

AIR CONDITIONING AND AUDIO
99 When the “FRONT WINDSHIELD” button is pushed 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.
(c) Air filter
The air filter may clog after long use and reduce air flow. You
can inspect the filter easily.
When you inspect and replace the air filter, be sure to turn off
the fan.
1. Open the glovebox and remove the two covers.

AIR CONDITIONING AND AUDIO
100
2. Take out the air filter.
Inspect the lower surface of the filter. If it is just moderately
dusty, it may be cleaned by blowing compressed air from the
lower surface. Do not wash or oil the filter.
If it is dirty, it should be replaced. To maintain the air
conditioning efficiency, replace the air filter according to the
maintenance schedule.
NOTICE
Do not drive with the air filter removed, or the efficiency
of air conditioning may be lost.
(d) 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 “Center vents”, “Side vents”, “Lower vent” 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.