Chrysler 2009 Aspen - Owner Manual - Manual (Page 262)

Automatic Temperature Control (ATC) — If Equipped
The control can be turned on by pressing the Power knob.
When the control is turned on, it will be in the last mode
prior to being turned off. Pressing the Power knob again
will turn off the control. The control can also be turned on
by pressing any button and it will display the corre-
sponding operation mode for that button.
Automatic Control
The ATC system can maintain a steady comfort level in
various weather conditions with a simple operation:
• Select your desired temperature setting by pressing
the + or - side of the Temp rocker switches. A digital
temperature setting for driver and passenger will be
displayed. The ATC system uses an infrared sensor
located in the overhead console to measure the tem-
perature of the driver and passengers. Based on the
sensor input, the system will automatically control
comfort by varying the temperature, fan speed, and
mode. This maintains a comfortable temperature, even
under changing conditions. It is important that objects
are not blocking the infrared sensor. It is also impor-
tant that objects are not used that may scratch or
damage it in any way.
Automatic Temperature Control
260 UNDERSTANDING YOUR INSTRUMENT PANEL