Cadillac 2003 Seville Owner's Manual page 139

Sensors
E
The solar sensor on your vehicle monitors the solar
radiation inside your vehicle, then uses the information
to maintain the selected temperature by initiating
needed adjustments to the temperature, the fan speed
and the air delivery system. The system may also
supply cooler air to the side of the vehicle facing the
sun. The recirculation mode will also be activated,
as necessary. Do not cover the solar sensor located in
the middle of the instrument panel, near the windshield
or the system will not work properly.
There is also an outside temperature sensor located
under the front bumper and an inside temperature
sensor located to the left of the ignition switch. These
sensors read the outside and inside air temperature and
help to maintain the selected temperature inside the
vehicle. If you cover these sensors, it could cause
a false reading in the temperature.
Defogging and Defrosting
There are two modes to clear fog from your windshield.
Use the floor/defog mode to clear the windows of fog
or moisture and warm the passengers. Use the defrost
mode (FRONT) to remove fog or frost from the
windshield more quickly.
<
MODE
>
:
Press this switch until floor/defog
appears on the display.
3
(Floor/Defog): This mode directs the air equally
between the windshield and the floor outlets. When you
select this mode, the system turns off recirculation
and runs the air-conditioning compressor unless
the outside temperature is at or below freezing. The
recirculation mode cannot be selected while in the
floor/defog mode.
FRONT (Defrost): Pressing FRONT directs most of
the air to the windshield and the side window outlets, with
some air directed to the floor outlets. In this mode, the
system will automatically turn off recirculation and run the
air-conditioning compressor, unless the outside
temperature is at or below freezing. Recirculation cannot
be selected while in the defrost mode.
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