RECIRCULATION (Rec) Switch
WARNING: This page is about a different car, the 2004 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
OFF position: Outside air is drawn into the passenger compartment.
ON position: Interior air is recirculated inside the vehicle.
The indicator lamp will also light.
Recirculation is canceled when DEF or F/D mode is selected, and resumes when another mode is chosen.