Lexus RX350 2023 Manual page 384

384
5-2. Using the air conditioning system and defogger
reduce fuel consumption.
● Recirculated air mode is selected as a
default mode when the engine switch is
turned to ON.
● It is possible to switch to outside air mode
at any time by pressing the outside/recir-
culated air mode switch.
Front seat concentrated airflow
■
mode (S-Flow)
This function automatically controls the
airflow of the air conditioning system to
prioritize airflow to the front seats. Fuel
economy can be enhanced by reduc-
ing unnecessary cooling
Front seat concentrated airflow mode
operates in the following situations.
 No passengers are detected in the
rear seats
 The windshield defogger is not
operating
The S-Flow switch is
the option screen.
In front seat concentrated airflow mode,
directing airflow to the front seats only and
to all seats can be switched via switch
operation. When the mode has been
switched manually, automatic airflow con-
trol stops operating.
1
Select the option screen switch.
(P.381)
2
Select the "S-Flow" switch.
 Indicator illuminated: Airflow to the
front seats only
 Indicator off: Airflow to all the seats
■ Operation of automatic airflow control
In order to maintain a comfortable inte-
●
rior, airflow may be directed to seats
without passengers immediately after the
engine is started and at other times
depending on the outside temperature.
● After the engine is started, if passengers
move around inside or enter/exit the vehi-
cle, the system cannot accurately detect
the presence of passengers and auto-
matic airflow control will not operate.
Operation of manual airflow control
■
Even if the function is manually switched to
directing airflow to only the front seats,
when a rear seat is occupied, it may auto-
matically direct airflow to all seats.
To return to automatic airflow control
■
1 With the indicator off, turn the engine
switch off.
2 After 60 minutes or more elapse, turn
the engine switch to ON.
Eco air conditioning mode
■
The air conditioning is controlled with
low fuel consumption prioritized such
as reducing fan speed, etc.
1
Select the option screen switch.
(P.381)
(ON) on
2
Select the "Eco heat/cool" switch.
 In Eco drive mode, the air condition-
ing system is controlled as follows to
prioritize fuel efficiency. To improve
air conditioning performance, turn
off Eco air conditioning mode.
• Engine speed and compressor opera-
tion controlled to restrict heating/cool-
ing capacity.
• Fan speed restricted when automatic
mode is selected.
 When the driving mode is set to Eco
driving mode, the Eco air condition-
ing mode will be turned on automat-
ically. Even in this case, the Eco air
conditioning mode can be turned
off by selecting the "Eco heat/cool".