Lexus 2003 LS Owner's Manual page 202

AIR CONDITIONING
(a) Climate control
SETTING OPERATION – automatic control
21L054a
1. Push the "AUTO" button.
Air flow quantity, switching of the diffusers, on–off of the air
conditioning, and switching of the air intake between
RECIRCULATED AIR and OUTSIDE AIR are automatically
adjusted. If you use the air purifier automatic mode at the same
time, air purifying effect will be enhanced (If equipped). The
operation status is shown by each indicator.
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.
It is recommended that you close the lower vent. For details
about this, see page 198.
188
Push the "OFF" button briefly to turn the air conditioning off.
If you keep the "OFF" button pushed, the data for the air filter
is reset.
21L055b
2. Use the "TEMP" or "PASSENGER TEMP" button to set
the desired temperature.
The "TEMP" or "PASSENGER TEMP" button is used to set the
desired temperature. The temperature will be controlled on the
driver and front and rear passenger sides (if rear air
conditioning is equipped) simultaneously or individually. The
figures on the panel indicate degrees Fahrenheit or
Centigrade.
"TEMP" button – Changes the temperature on the driver and
front and rear passenger sides (if rear air conditioning is
equipped) simultaneously or individually.
"PASSENGER TEMP" button – Changes the temperature on
the passenger side only.
"DUAL" button – Changes the mode of the temperature
setting.