Lexus ES300 Owner's Manual page 179

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
" 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 turns off the fan.
To remove exterior windshield frost, use the high speed
setting.
AIR CONDITIONING
If manual switching of air intake is desired
The air intake control button is used to switch the air intake
between the OUTSIDE AIR mode and RECIRCULATED AIR
mode.
To turn the air source to the RECIRCULATED AIR mode, press
the button. The indicator will come on. To turn the air source
to OUTSIDE AIR mode, press the button again. The indicator
will go off.
To prevent fogging up of the windshield, the air intake mode
may change automatically to the OUTSIDE AIR mode
depending on the condition of the air conditioning system.
For example, when the ambient temperature is low, the air
intake mode may change automatically to the OUTSIDE AIR
mode. This is not a malfunction.
If quick circulation of cooled air is desired, push the air intake
control button for RECIRCULATED AIR. The indicator light will
come on.
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