Lexus LS 500 2019 Owner's Manual page 320

320
5-3. Using the air conditioning system and defogger
off after a while.
In order to prevent the windshield from fog-
ging up when the outside air is cold, the
dehumidification function may operate or
the outside/recirculated air mode may not
switch to (recirculated air) mode.
Pollen is filtered even if the micro dust and
pollen filter is turned off.
WARNING
To prevent burns (vehicles with wind-
■
shield wiper de-icer)
Do not touch the glass at lower part of
the windshield or to the side of the front
pillars when the windshield wiper de-icer
is on.
Using automatic mode
1 Press the automatic mode switch or
select "AUTO" on the sub function
menu. (P.316)
2
Press the outside/recirculated air
mode switch to switch to automatic
air intake mode.
The air conditioning system automatically
switches between outside air and recircu-
lated air modes.
3 Adjust the temperature setting.
4 To stop the operation, press the off
switch or select "OFF" on the sub
function menu. (P.316)
If the fan speed setting or air flow modes
are operated, the automatic mode indica-
tor goes off. However, automatic mode for
functions other than that operated is main-
tained.
Using automatic mode
■
Fan speed is adjusted automatically accord-
ing to the temperature setting and the
ambient conditions.
Therefore, the fan may stop for a while until
LS500_OM_(U)_1810
warm or cool air is ready to flow immedi-
ately after the automatic mode switch is
pressed or "AUTO" is selected.
Cool air may blow around the upper body
even when the heater is on due to sunlight.
Automatic mode for air intake control
■
In automatic mode, the system detects
exhaust gas and other pollutants and auto-
matically switches between outside air and
recirculated air modes.
When the dehumidification function is off,
and the fan is operating, turning automatic
mode on will activate the dehumidification
function.
S-FLOW mode
In S-FLOW mode, priority for the air-
flow is given to the front seats, reducing
the airflow and air conditioning effect
on the rear seats. When in S-FLOW
mode, airflow from the rear air condi-
tioning system is stopped.
Operation in S-FLOW mode differs
according to the following conditions:
 Priority is given to the driver's seat
only when:
Manual S-FLOW mode: When no
passenger is judged to be in the
front passenger seat.
Automatic S-FLOW mode: When
no passengers are judged to be in
the front passenger seat or rear
seats.
 Priority is given to the front seats
when: Manual S-FLOW mode is
selected or no passengers are
judged to be in the rear seats when
in automatic S-FLOW mode.
 S-FLOW mode will be disabled
when: A passenger is judged to be