See also:

Air recirculation
Push the air recirculation button to recirculate interior air inside the vehicle. The indicator light on the switch will come on. The air recirculation button will not be activated when the air ...

Air flow charts
The following charts show the button and dial positions for MAXIMUM AND QUICK heating, cooling or defrosting. The air recirculation button should always be in the OFF position for heating and defr ...

New for 2010
The Frontier receives only minor changes for 2010, centered around safety improvements and greater availability of driveline features. ...