Cadillac cts User Manual

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3-4
 (Passenger’s Temperature Switch): This switch is
used to increase or decrease the temperature of the air
for the passengers independent of the driver’s setting.
To turn the system on, press the PWR button located 
on the passenger’s side of the climate control panel. 
To adjust the temperature, press the up or down arrow
on the PWR button. The temperature will increase or
decrease with each press of an arrow.
If the passenger’s temperature switch is off, the driver’s
temperature switch controls the temperature for the
entire vehicle.
The passenger’s side temperature is only displayed
when the passenger’s side temperature switch is on.
Automatic Operation
AUTO (Automatic Climate Control): This button is
used to select the automatic operation of the climate
control system. When the automatic operation is active,
AUTO will appear next to the fan and mode settings on
the display.
There are three sensors in the climate control system.
One monitors the sun’s solar radiation, another monitors
temperature of the air inside the vehicle, and a third
monitors the temperature outside the vehicle. The
climate control system will vary the fan speed, air
delivery mode and use of the air conditioning
compressor to maintain the set temperature based on the
information received from these sensors. See “Driver’s
Temperature Switch” and “Passenger’s Temperature
Switch” listed previously for more information on
setting a temperature.
To find your comfort zone, start with the 75
_F (24_C)
setting and allow approximately 10 to 30 minutes for the
system to regulate. Adjust the temperature if necessary.
If you choose either the lowest temperature setting,
60
_F (16_C), or the highest temperature setting, 
90
_F (32_C), the system will not cool or heat any 
faster, but the system will stay at that setting without
regulating fan speed.
To avoid blowing cold air in cold weather, the system
will start at lower fan speeds until warm air is available.
The length of reduction depends on the outside air
temperature, engine coolant temperature or the time
since the engine was last started. As the engine coolant
warms up, the fan speed will gradually increase.