Toyota highlander 2015 Instruction Manual page 443

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The seat heaters and seat heaters/ventilators can be used when

Vehicles without a smart key system
The engine switch is in the "ON" position.

Vehicles with a smart key system
The engine switch is in IGNITION ON mode.
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When not in use

Seat heaters
Turn the dial fully backward. The indicator light will turn off.

Seat heaters/ventilators
Set the knob at "0". The indicator light will turn off.
Second seat heaters
1
Hi
2
Lo
3
Off
The indicator comes on when the
second seat heater is on.
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The second seat heaters can be used when
The engine switch is in IGNITION ON mode.
HIGHLANDER_U (OM48E98U)
6-1. Using the air conditioning system and defogger
I n f o r ma t i o n P r o v i d e d b y :
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