Lexus GS 350 Owner's Manual page 394

The seat heaters/seat ventilators can be used when
■
The engine switch is in IGNITION ON mode.
Seat heater control (vehicles without automatic mode)
■
The seat heater automatically changes operations. If the engine switch is turned off while
the seat heater is operating, the starting operation of the heater differs depending on the
amount of time that elapses before it is turned back on.
Current operation
Automatic operation of the seat heater during Eco drive mode
■
If the driving mode select switch is switched to Eco drive mode in cold temperatures, the
seat heater may be automatically operated to assist heating performance.
Automatic operation during S-FLOW mode
■
The front seat heater and ventilator or the rear seat heater may automatically turn off
when S-FLOW mode is turned on during automatic mode. (P. 375)
Button lock function (vehicles with rear control panel)
■
To prevent inadvertent operation, some buttons on the rear armrest can be locked.
(P. 388)
When the switch is disabled (vehicles with rear control panel)
■
When the rear control panel switch cannot be operated even though the button lock
function is released, check whether the switch is disabled due to selecting
Remote Touch screen. (P. 381)
Rear control panel illumination off function (vehicles with rear control panel)
■
Control panel illumination on the rear armrest can be turned off. (P. 388)
Customization
■
The automatic operation of the front seat heaters (without seat ventilators) and the auto-
matic mode settings for the front seat heaters and ventilators or the rear seat heaters can
be changed. (Customizable features: P. 627)
GS350_300_GS F_OM_OM30J17E_(GE)
5-2. Using the air conditioning system and defogger
Starting operation mode and amount of time elapsed
until engine switch in IGNITION ON mode
0 to 15 minutes
Hi
Mid
Lo
Over 15 minutes
Hi
Mid
Lo
393
Hi
Hi
Hi
5
on