Dodge 2010 Dakota - Manual (Page 230)

Mode or Recirculation Mode Bi-level position. When a
comfortable condition has been reached, choose a mode
position and adjust the temperature control knob and
blower speed as necessary to maintain comfort. For high
humidity conditions it may be necessary to remain in the
Recirculation mode to maintain comfort.
Window Fogging
Windows will fog on the inside when the humidity inside
the vehicle is high. This often occurs in mild or cool
temperatures when it’s rainy or humid. In most cases
turning on the Air-conditioning (pressing the SNOW-
FLAKE button) will clear the fog. Adjust the temperature
control, air direction and blower speed to maintain
comfort.
As the temperature gets colder it may be necessary to
direct air onto the windshield by using MIX Mode
position on the control. Adjust the temperature control
and blower speed to maintain comfort. High blower
speeds will reduce fogging. Interior fogging on the
windshield can be quickly removed by selecting the
defrost mode.
Regular cleaning of the inside of the windows with a
non-filming cleaning solution (vinegar and water works
very well) will help prevent contaminates (cigarette
smoke, perfumes, etc.) from sticking to the windows.
Contaminates on the inside of windows can increase the
rate of window fogging.
230 UNDERSTANDING YOUR INSTRUMENT PANEL