maintenance schedule lexus LS400 1994 Electrical Components / 1994 LS400: AIR CONDITIONING AND AUDIO

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.