2009 Chrysler 300 Owner Manual - Page 299

UNDERSTANDING YOUR INSTRUMENT PANEL 297 Automatic Temperature Control - If Equipped Operation of the system is quite simple. Begin by turning the mode control knob (on the right) to AUTO, and place the blower control knob (on the left) to either LO AUTO or HI AUTO. The LO AUTO position should be used for front seat occupants only. The HI AUTO position should be used when more airflow is desired, or when rear seat occupants are present. Then, dial in the temperature you would like the system to maintain by rotating the driver or passenger temperature control knob. Once the comfort level is selected, the system will maintain that level automatically using the heating system. Should the desired comfort level require air conditioning, the system will automatically make the adjustment. You will experience the greatest efficiency by simply allowing the system to function automatically. Selecting the OFF position on the fan control stops the system completely and closes the outside air intake. 4 Automatic Temperature Controls Automatic Operation The Dual-Zone Climate Control System automatically maintains the climate in the cabin of the vehicle at the comfort levels desired by the driver and passenger.