See also:

Instrument panel light control (rheostat)
The instrument panel lights can be made brighter or dimmer by turning the instrument panel light control knob. ...

Air intake control
  This is used to select outside (fresh) air position or recirculated air position. To change the air intake control position, push the control button. Recirculated air position   ...

2. Evaporative emission control (including ORVR: Onboard Refueling Vapor Recovery) system
The Evaporative Emission Control System is designed to prevent fuel vapors from escaping into the atmosphere. (The ORVR system is designed to allow the vapors from the fuel tank to be loaded into ...