Automatic Operation — Two- and Three-Zone ATC
The Two- and Three-Zone ATC systems automatically
maintain the climate in the cabin of the vehicle. To
accomplish this, the system gathers information from the
climate controls, from a dual sun-sensor located in the
top of the instrument panel, from an infrared sensor
located between the sun visors, and from various sensors
located throughout the vehicle.
•
The climate controls provide the system with operator
input.
•
The dual sun-sensor monitors sun load coming
through the windshield.
•
The infrared sensor independently measures the sur-
face temperature of the driver and passengers.
•
Other sensors take into account vehicle-speed, A/C
pressure, outside temperature, and engine cooling
temperature.
Using all of these inputs, the system automatically ad-
justs airflow temperature, airflow distribution, airflow
volume, and the amount of outside air recirculation. This
maintains a comfortable temperature even under chang-
ing conditions.
To select automatic operation, perform the following
steps:
1. Press and release the AUTO button and the ATC
displays the word “AUTO,” along with current settings
for temperature, mode, and blower speed. It also displays
the snowflake icon if the A/C is running.
2. Turn the Left Front Temperature Control, the Right
Front, and if so equipped, the Rear Temperature Control
to dial in the temperature that you want the system to
maintain for each zone. On Three-Zone ATC systems, if
so desired, push and release the SYNC button. Then turn
294 UNDERSTANDING YOUR INSTRUMENT PANEL
To Next Page
Loading...
