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 ...

NISSAN Intelligent Key™ door buzzer
The Intelligent Key door buzzer sounds if the Intelligent Key is left inside the vehicle when locking the doors. When the buzzer sounds, be sure to check both the vehicle and the Intelligent Key. ...

NISSAN dealer.
However, now and then you may notice light spark knock for a short time while accelerating or driving up hills. This is not a cause for concern, because you get the greatest fuel benefit when ther ...