See also:

Low tire pressure warning light (U.S.-spec. models)
When the ignition switch is turned to the “ON” position, the low tire pressure warning light will illuminate for approximately 2 seconds to check that the tire pressure monitoring system (TPMS) ...

Tire pressures and wear
Maintaining the correct tire pressures helps to maximize the tires’ service lives and is essential for good running performance. Check and, if necessary, adjust the pressure of each tire (inclu ...

Air inlet selection button
ON position (recirculation): Interior air is recirculated inside the vehicle. Press the air inlet button to the ON position. The indicator light will illuminate. Place this button in the ON posit ...