Lexus ES-300 2001 Manual page 67

SWITCHES
" 1 For driver's seat
seat
3 High heating temperature
4 Low heating temperature
To turn on the seat heater, push the switch to "HI"
(high temperature) or "LO" (low temperature).
Pushing lightly on the opposite side will turn it off.
The ignition key must be in the "ON" position.
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2 For front passenger's