Lexus 2004 LS430 Owner's Manual page 264

AIR CONDITIONING
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 -
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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 Bi- level - 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.
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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 -
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" 1 Fan speed at low 2 Fan 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.