RAM 2013 CHASSIS CAB 3500 Owner's Manual page 254

252 UNDERSTANDING YOUR INSTRUMENT PANEL
7. Climate Control OFF Button
Press and release this button to turn the Climate Control
ON/OFF.
8. Temperature Control Down Button
Push the button for cooler temperature settings. On the
touch-screen, slide the temperature bar towards the blue
arrow soft-key for cooler temperature settings.
9. Temperature Control Up Button
Push the button for warmer temperature settings. On the
touch-screen, slide the temperature bar towards the blue
arrow soft-key for cooler temperature settings.
Recirculation Control
When outside air contains smoke, odors, or
high humidity, or if rapid cooling is desired,
you may wish to recirculate interior air by
pressing the RECIRCULATION control button.
Recirculation mode should only be used temporarily. The
recirculation LED will illuminate on the blower control
knob when this button is selected. Push the button a
second time to turn off the Recirculation mode LED and
allow outside air into the vehicle.
NOTE: In cold weather, use of Recirculation mode may
lead to excessive window fogging. The Recirculation
mode is not allowed in Defrost mode to improve window
clearing operation. Recirculation will be disabled auto-
matically if these modes are selected.