Nissan Altima: Manual operation - Heater and air conditioner (automatic)
(if so equipped) - Monitor, climate, audio, phone and voice recognition systems - Nissan Altima Owners ManualNissan Altima: Manual operation

Rear window defroster switch
For more information about the rear window defroster switch, see “Rear window and outside mirror defroster switch” in the “Instruments and controls” section of this manual. ...

Fan speed control
Turn the fan control dial left or right to manually control the fan speed. Press the OFF button to turn the system off. Press the AUTO button to return to automatic control of the fan speed. ...

See also:

Extreme Cold Weather (Below –20°F Or 29°C)
To ensure reliable starting at these temperatures, use of an externally powered electric engine block heater (available from your dealer) is recommended. ...

Climate Control System
EX-L, Canadian EX, and all V6 ...

GVWR and GAWR (Gross Vehicle Weight Rating and Gross Axle Weight Rating)
Certification label The certification label attached to the driver’s side door shows GVWR (Gross Vehicle Weight Rating) and GAWR (Gross Axle Weight Rating). The GVW (Gross Vehicle Weight) must ...