maintenance schedule lexus LS400 1996 Gauges, Meters and Service Reminders / 1996 LS400: AUTOMATIC A/C CONTROLS

AIR CONDITIONING AND AUDIO
102
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. (For scheduled maintenance
information, please refer to the separate ªOwner's Manual
Supplement/Maintenance Scheduleº.)
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 ªCenter ventsº, ªSide ventsº, ªLower ventº and
ªRear ventsº.)
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 ªOFFº 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.