Lexus GX 460 2020 Owner's Manual page 431

430
5-1. Using the air conditioning system and defogger
Rear seat (if equipped)
■
For left second seat
1
For right second seat
2
High heating temperature
3
Low heating temperature
4
To turn on the seat heater, press "HI"
or "LO".
The indicator light on "HI" or "LO"
switch indicates that the seat heater
is on.
Off
5
To turn off, press "OFF".
The seat heaters can be used when the engine switch is in IGNITION ON mode.
GX460_OM_OM60R28E_(GE)