The seat heaters and ventilators heat the seats and maintain
good airflow by blowing air from the seats.
Seat heaters Turns the seat heater on
The level indicator lights come on. Press the "" on the button to up and "" to down, and off. Seat ventilators ■ Seat heater Turns the seat heater on
The level indicator lights come on. Pressing the button changes modes in the following: Hi→Mid→Lo→Off ■ Seat ventilators Blows air from the seat
The level indicator lights come on. Pressing the button changes modes in the following: Hi→Mid→Lo→Off ■The seat heaters/seat ventilators can be used when The engine switch is in the "ON" position. ■Passenger seat ventilator timer (vehicles with seat ventilators)
■When not in use Turn the seat heaters or seat ventilators off by pressing the button. The indicator light turns off.
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Toyota Tundra Service Manual > Air Switching Valve(for Bank 1): Removal
REMOVAL PROCEDURE 1. DISCONNECT NO. 2 AIR HOSE (a) Disconnect the air switching valve assembly connector. (b) Slide the clamp and disconnect the No. 2 air hose. 2. REMOVE AIR SWITCHING VALVE ASSEMBLY (a) Remove the bolt and disconnect the wire harness clamp bracket from the cylinder head cover. (b) ...