Cadillac 2000 Catera Owner's Manual page 147

Outside Temperature Display
The outside temperature is always displayed when
your vehicle's ignition is on. If the outside temperature
display begins to flash, this means that icy road
conditions are possible. Adjust your driving if needed.
The display will flash for about 30 seconds and then
remain on steady.
Mode Button
Press this button to deliver air through the floor, middle
or windshield outlets. The climate control system will
stay in the selected ECC mode until the MODE button is
pressed again or until the TEMP/AUTO knob is pressed.
Press the up or down arrow to see the available modes.
English/Metric Display
You can change the temperature display from English
(degrees Fahrenheit) to metric (degrees Celsius) by
pressing and holding the driver's side TEMP/AUTO
knob for approximately five seconds. Repeat the
process to change back to English from metric.
Automatic Operation
Pressing the driver's side TEMP/AUTO knob sets the
system for automatic operation. Once the system is set,
sensors will control the air delivery mode. Air will come
from the floor, middle, side or windshield outlets. The
fan speed will vary as the system maintains the selected
temperature setting. (All previous manually set mode
settings will change back to a fully automatic mode
when the climate control system is turned on this way.)
Be careful not to put anything over the solar sensor
located in the middle of the instrument panel near the
windshield. This sensor is used by the automatic system
to regulate temperature.
To find your comfort zone, start with the 75 _ F (24 _ C)
setting and allow about 20 minutes for the system to
regulate air temperature. Adjust the temperature if
necessary. If you choose 60 _ F (16 _ C), the system
will remain at that maximum cooling setting and will
not regulate fan speed. If you choose the temperature of
90 _ F (32 _ C), the system will remain at that maximum
heating setting and will not regulate fan speed. Choosing
either maximum setting will not cause the system to heat
or cool any faster.
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