Ram Trucks 2013 Chassis Cab - Owner Manual - Manual (Page 251)

Button Descriptions (Applies To Both Hard-keys And
Soft-keys)
1. A/C Button
Press and release to change the current setting, the
indicator illuminates when A/C is ON. Performing this
function again will cause the A/C operation to switch
into manual mode and the A/C indicator will turn off.
2. Recirculation Button
Press and release to change the current setting, the
indicator illuminates when ON.
3. Front Defrost Button
Press and release to change the current airflow setting
to Defrost mode. The indicator illuminates when this
feature is ON. Performing this function will cause the
ATC to switch into manual mode. The blower speed may
increase when Defrost mode is selected. If the front
defrost mode is turned off the climate system will return
the previous setting.
4. Rear Defrost Button
Press and release this button to turn on the rear window
defroster and the heated outside mirrors (if equipped).
An indicator will illuminate when the rear window
defroster is on. The rear window defroster automatically
turns off after 10 minutes.
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UNDERSTANDING YOUR INSTRUMENT PANEL 249