Operation - Three Zone ATC: Notes

WARNING: This page is about a different car, the 2004 Dodge Grand Caravan, 2004 Dodge Caravan, and 2004 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.

Comfort temperature or perceived temperature is affected by air flow, sun levels on exposed skin, etc. The air temperature may be higher or lower than the comfort temperature. Two infrared sensors in the instrument panel center stack measure the temperature of the occupants to determine their comfort level relative to the selected comfort temperature. The integral HVAC computer adjusts temperature and air flow rates to maintain the customer-perceived comfort temperature. The air temperature in the passenger compartment may be slightly higher or lower than the comfort temperature at any time. For instance, on sunny summer days the air flow will probably be cooler than the comfort temperature; on cold or cloudy days and at night it will probably be slightly warmer. Infrared Three-Zone Temperature Control provides side-to-side and front-to-rear variations in comfort temperature settings. The Infrared Three-Zone Automatic Temperature Control fan provides a continuously variable air flow rate to meet occupant comfort requirements.