Nissan Altima (L33) 2013-2018 Owners Manual ≻ Monitor, climate, audio, phone and voice
recognition systems ≻ Vents
Nissan Altima (L33) 2013-2018 Owners Manual: Vents
Side
Adjust air flow direction by moving the vent slides.
Open or close the vents by using the dial. Move
the dial toward the 
to open the
vents or
toward the 
to close them.
Center
Rear
Moving Object Detection (MOD) (if so equipped)
Heater and Air Conditioner (manual) (if so equipped)