2005 LEXUS LS430 air conditioning

AIR CONDITIONING
240
AUTOMATIC AIR CONDITIONING CONTROLS (Vehicles without Rear Air Conditioning)
21L189

AIR CONDITIONING
241
The automatic air conditioning automatically maintains
the set temperature.
This
air conditioning features automatic fan speed and air flow
control which automatically se lects the most suitable fan
speed and air flow to control the temperature.
The ignition switch 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.
1 Temperature selector
(with the “DUAL” button on; for driver and rear
passengers)
(with the “DUAL” button off; for driver and all
passengers)
2 Passenger side temperature control button
3 Front windshield button
4 Driver side temperature display
(in degrees Fahrenheit or Centigrade)
5 Fan speed display
6 Air flow display
7 Air intake control button
8 Passenger side temperature display
(in degrees Fahrenheit or Centigrade)
9 Center vent vane swing button
10 Air conditioning onoff button
11 Air flow control button
12 Fan speed control button
13 OFF button
14 Automatic control button
15 Separate/dual control button

AIR CONDITIONING
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21L190b
Air flow selectionAutomatic air flow mode only

AIR CONDITIONING
243
(a) Climate control
SETTING OPERATION automatic control
21L054a
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. If you use the air purifier automatic mode at the same
time, air purifying effect will be enhanced (If equipped). The
operation status is shown by each indicator.
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.
Push the “OFF” button briefly to turn the air conditioning off.
If you keep the “OFF” button pushed, the data for the air filter
is reset.
21L283
2. Use the “TEMP” or “PASSENGER TEMP” button to set
the desired temperature.
The “TEMP” or “P ASSENGER TEMP” button is used to set the
desired temperatu re. The temperatur e will be controlled on the
driver and front and rear passenger sides (if rear air
conditioning is equipped) simultaneously or individually. The
figures on the panel indicate degrees Fahrenheit or
Centigrade.
“TEMP” button − Changes the temperature on the driver and
front and rear passenger sides (if rear air conditioning is
equipped) simultaneously or individually.
“PASSENGER TEMP” button − Changes the temperature
settings separate from the driver side.
“DUAL” button − Changes the mode of the temperature
setting.

AIR CONDITIONING
244The indicator on the “DUAL” button has two modes:

With the indicator on − For individual temperature setting
 With the indicator off − For simultaneous temperature
setting
21L191
Driver side setting
Passenger side setting
Mixed setting

AIR CONDITIONING
245
SETTING OPERATION 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
21L066
The outlets from which air is delivered can be selected
manually by
pushing the button. The function of each mode is
as follows:
1 Panel − Air flows mainly from the instrument panel vents
and rear vents.
2 Bilevel − Air flows from both the floor vents, the
instrument panel vents and rear vents.
3 Floor − Air flows mainly from the floor vents and rear
vents.
4 Floor/Windshield − Air flows mainly from the floor vents
and windshield vents. Take in the fresh air by selecting the OUTSIDE AIR mode with
the air intake control button.
If quick heating or cooling is desired
Push the “TEMP” or “PASSENGER 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
21L059
 1 Fan 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 “OFF”
button briefly turns off the fan.
To remove exterior windshield frost, use the high speed
setting.

AIR CONDITIONING
246If manual switching of air intake is desired
21L060a

Vehicles with rear air conditioning
21L156
Vehicles without rear air conditioning Each time you push the air intake control button, the mode
changes in order from the RECIRCULATED AIR mode to
AUTOMATIC mode to OUTSIDE AIR mode, then back to the
RECIRCULATED
AIR mode. Each indicator light shows which
mode is now selected.
1 RECIRCULATED mode If quick circulation of cooled air
is desired, select this mode.
2 EXHAUST GAS AUTOMATIC mode If the outside air
contains harmful substances like exhaust gas (i.e., when
the vehicle running just in front of your vehicle accelerates
rapidly), the system changes automatically from the
OUTSIDE AIR mode (with indicators
2
and 3 on) to
the RECIRCULATED mode (with indicators 1
and 2
on). If you use the EXHAUST GAS AUTOMATIC mode
and the air purifier automatic mode at the same time, air
purifying effect will be enhanced (If equipped).
3 OUTSIDE AIR mode The system will take fresh outside
air into the vehicle.
Turning off the air conditioning manually will cancel the
EXHAUST GAS AUTOMATIC mode. If you select the “AUTO”
mode during fan operating, the air conditioning turns on and
the EXHAUST GAS AUTOMATIC mode will operate.
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.
To change the sensitivity of the sensor switching between
the RECIRCULA TED and OUTSIDE AIR in the AUTOMATIC
mode, push the air intake control button until you hear a
beep. The display changes as illustrated below.

AIR CONDITIONING
247
The sensitivity of the sensor can be adjusted only while the
vehicle has stopped.
21L108
When
you push either side of the “TEMP” button several times,
the sensitivity changes from “+3” down to “–3”. If you d\
o not
operate any button for a few seconds, the previous display
returns.
If manual onoff 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 you turn off the air
conditioning manually, the EXHAUST GAS AUTOMATIC
mode will be cancelled.
If the outside temperature is lowered down to around 0 C
(32 F), the air conditioning will turn off automatically. At this
time, the indicator on the A/C button is off and the EXHAUST
GAS AUTOMATIC indicator light remains on. However, the
EXHAUST GAS AUTOMA TIC mode does not operate. When
the air conditioning turns on as with the raised temperature, the
EXHAUST GAS AUTOMATIC mode resumes. 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.