Nissan Maxima: Vents Nissan Maxima / Nissan Maxima A35 (2009-2014) Owners Manual / Monitor, climate, audio, phone and voice recognition systems / Vents Nissan Maxima: Vents Center 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. Side Rear Operating tipsHeater and air conditioner (automatic) (Type A)