2005 LEXUS LS430 air conditioning

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(b) Windshield defogging and defrosting
21L068a
To remove interior fog on the windshield
Push the “FRONT WINDSHIELD” button.
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.
3. Push the fan speed control button on the right side to obtain
a maximum air flow.
4. Leave the “A/C” button off.
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.
When you turn the ignition switch on after the removal and
installation of the battery terminal, the indicator light may flash
and the operating sound of the motor may be heard. This does
not indicate a malfunction.
You may hear the operating sound of the motor about 70
seconds after the ignition switch is turned off. This does not
indicate a malfunction.

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249
(c) Replacing the air conditioning filter
21L203
The air conditioning filter is behind the glove box.
The air conditioning filter prevents dust from entering the
vehicle through the air conditioning vent.
If the “Change A/C Filter” appears on the multi−information
display, change the air conditioning filter as soon as possible
because the air filter might have clogged.
The filter may clog after long use which will reduce the air flow.
1. When you replace the filter, be sure to turn off the fan.
21L204
 1Partition
2. Open the glove box and remove the partition.
21L205
 1 Cover 2Levers
3. Push the levers and remove the cover.

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250
21L206
 1Filter cover 2Levers
4. Push up the levers and remove the filter cover.
21L207
 1 Filter case
5. Pull the filter case toward you.
21L208
 1 Filter 2Filter case
6. Take the filter out of the filter case and replace it with a
new one.
NOTICE
When installing, the UP marks shown on the filter and
filter case should be noted and fitted as shown.
7. Install it in the reverse order of removal.

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251
21L209
 1Tabs 2Filter cover 3Levers
8. When installing the filter cover, insert the 3 upper tabs
and then 2 lower levers.
21L201
9. After the replacement, push and hold the “OFF” button
for the front air conditioning for more than 4 seconds to
reset the air filter clogging data. The “A/C Filter Reset”
appears on the multiinformation display and a tone
sounds to inform you that the data has been reset.
NOTICE
The filter should be installed properly in position. The
use of air conditioning with the filter removed may
cause the malfunction of the air conditioning system.

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252
(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” 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.
Center vents
21L064a
The center vents may be opened or closed as shown.
21L057b
Push the swing button to swing the vanes.
The vanes directly aimed at the driver and front passenger will
swing wider as the room temperature nears the desired
temperature. The swinging angle will also change from narrow
to wide depending on the room temperature.

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253
21L058a
When you push the swing button with no passenger in the
front seat and the “DUAL” button ON (with the indicator
on):
The vanes directly aimed at the driver and rear passenger will
swing wider as the room temperature nears the desired
temperature. The swinging angle will also change from narrow
to wide depending on the room temperature.
When you push the swing button with no passenger on
the front seat and “DUAL” button OFF (with the indicator
off):
The vanes directly aimed at the driver will swing wider as the
room temperature nears the desired temperature. The
swinging angle will also change from narrow to wide
depending on the room temperature.
Side vents
21L065
The side vents may be opened or closed as shown.

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Rear vents
21L015a
The rear vents may be opened or closed as shown.
REAR AIR CONDITIONINGCONTROLS
21L194
 1Rear air vent 2Auto button 3Off button
4LO HI A/C button

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These
are the controls added to the front air conditioning when
your vehicle is equipped with a rear air conditioning. The
controls for the rear passengers and for the front passengers
both work the same, so operation can be made with the
controls on either panel.
(a) Controls and Functions
This rear air conditioning is equipped with dustproof and
deodorant filter with photocatalyst. When light in the
xenon tube (ultraviolet rays) hits the filter, odious
ingredients adsorbed in the filter are oxidized and
decomposed to deliver clean air in the interior.
REAR AIR CONDITIONING ONOFF
Push the “AUTO” button to turn the air conditioning on,
and push the “OFF” button to turn it off.
AIR FLOW CONTROL
The mode changes every time the “LO HI A/C” button is
pushed.
AUTO mode − Turns the fan operation to automatic.
LO speed mode − Turns the fan at low speed.
HI speed mode − Turns the fan at high speed.
(b) Rear Cooling
1. Turn the front air conditioning on. The rear cooler will not
turn on if the front air conditioning is off.
2. Turn the rear air conditioning on. The fan speed and rear
cooler are adjusted automatically.
3. Use either of the “LO HI A/C” buttons to adjust the desired
fan speed and the rear cooler. Each indicator light shows
which mode is now selected.
(c) Air Purifier
The air purifier operates whenever the rear air conditioning or
the rear fan operation is on, regardless of front air conditioning
activation.