Lexus ES 250 Owner's Manual page 333

332
5-3. Using the air conditioning system
trol switch is operated, S-FLOW mode
will be disabled. (vehicles with "3-
ZONE" mode)
The system does not determine
whether a passenger is in the rear seats
by the opening and closing of a rear
door, so S-FLOW mode cannot be
automatically disabled.
To automatically disable S-FLOW
mode by opening and closing a rear
door, switch to automatic S-FLOW
mode. (P.332)
S-FLOW air conditioning control
■
Operation of S-FLOW mode changes
according to the following conditions.
However, depending on the set tem-
perature, the operation may not
change.
 Driver seat priority (vehicles with
"3-ZONE" mode):
• When the system determines there is no
passenger in the front passenger seat in
manual S-FLOW mode
• When the system determines there are
no passengers in the front passenger
seat and rear seats in automatic S-
FLOW mode
The front passenger temperature display
turns off.
 Front seat priority:
When the system determines there are no
passengers in the rear seats
 S-FLOW disabled:
When the system determines there is a
passenger in the rear seats
Refer to P.332 for details of how the sys-
tem determines whether there are passen-
gers.
Passenger presence determination in S-
■
FLOW mode
The system determines that there is a pas-
senger in any of the following situations.
If a passenger is judged to be in the vehicle,
the system will retain the judgment for a
certain amount of time after the engine
switch is turned off.
Front passenger seat (vehicles with "3-

ZONE" mode)
• When the front passenger's door is
opened and closed
• When a passenger is sitting on the front
passenger seat
• When the front passenger side seat belt
is fastened
• When the front passenger seat set tem-
perature is changed
After only the front passenger side door is
opened and closed, when the vehicle is
driven at 20 km/h (12 mph) or more, the
system determines that there is no passen-
ger in the front passenger seat.
Rear seats

• When a rear door is opened and closed
• When the rear seat temperature control
switch is operated (vehicles with "3-
ZONE" mode)
■ Operation of automatic S-FLOW mode
When the system is operating in S-FLOW
mode, if a rear door is opened and then
closed or the rear seat temperature control
switch is operated (vehicles with "3-
ZONE" mode), S-FLOW mode will be dis-
abled. To enable S-FLOW mode, select the
S-FLOW mode switch. In this case, the sys-
tem switches to manual S-FLOW mode.
Changing from manual S-FLOW mode
■
to automatic S-FLOW mode
1
Select the S-FLOW mode switch to dis-
able S-FLOW mode
2
Turn the engine switch off.
3
After 60 minutes have elapsed, change
the engine switch to IGNITION ON
mode.