Lexus 2004 LS430 Owner's Manual page 92

SWITCHES
Rear climate control seats
12L178
" 1 For left seat 2 For right seat
3 Warm air 4 Air at room temperature
The rear climate control switches are located in the rear
armrest.
The rear climate control seat has two switches: one
marked "L" (for the rear left seat) and the other marked
"R" (for the rear right seat).
The ignition switch must be in the "ON" position.
The rear climate control seat has three modes: air at room
temperature, cool air and warm air.
72
To use the rear seat climate control, push the knob and
turn the knob. The indicator light comes on.
To feed air at room temperature, turn the knob to the gray
zone.
To feed cool air, turn the knob counterclockwise and set the
knob in the blue zone. Three setting levels are available.
To feed warm air, turn the knob clockwise and set the knob in
the red zone. Three setting levels are available. When you
push and turn the knob to the red zone, the seat heater turns
on first and then the rear climate control operates to feed warm
air.
After the switch is turned on, it takes several minutes until you
feel warm or cool.
5 Cool air
To disable this function, push the knob again. The indicator
light goes off.
If you turn off the ignition switch without turning off the rear
climate control seat, the rear climate control seat does not turn
on with the ignition on.