1999 Lexus GS 300 Owners Manual - Page 241

AIR CONDITIONING AND AUDIO

221

(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.