Ram Trucks 2015 3500 - Owner Manual - Manual (Page 416)

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.
Automatic Climate Controls With Touchscreen —
If Equipped
Buttons On The Faceplate
The buttons on the faceplate are located below the
Uconnect® screen.
Automatic Climate Controls — Buttons On The
Faceplate
414 UNDERSTANDING YOUR INSTRUMENT PANEL