Cadillac 2010 DTS - Manual (Page 203)

Automatic Operation
AUTO 9 (Automatic Fan): When this position is
selected on the fan control, the system adjusts the fan
speed. If the OnStar
® system is activated when this
position is selected, the climate control fan speed
will lower.
AUTO (Automatic Mode):
1. Turn the fan control to the AUTO position.
2. Turn the mode control to the AUTO position.
3. Adjust the temperature to a comfortable setting
between 21°C (68°F) and 26°C (78°F).
Choosing the coldest or warmest temperature setting
will not cause the system to heat or cool any faster.
In cold weather, the system will start at reduced fan
speeds to avoid blowing cold air into the vehicle until
warmer air is available. The system starts out
blowing air at the floor but may change modes
automatically as the vehicle warms up to maintain the
chosen temperature setting. The length of time
needed to warm the interior depends on the outside
temperature and temperature of the vehicle.
4. Wait 20 to 30 minutes for the system to stabilize in
order for the system to regulate automatically. Then
adjust the temperature as necessary to find your
comfort setting.
Do not cover the solar sensor located in the center of
the instrument panel near the windshield. For more
information on the solar sensor, see “Sensors” later in
this section.
After the vehicle is started, the display shows the interior
temperature settings and the outside temperature.
If the AUTO position is selected on the fan or mode
control, the system automatically controls the air
conditioning compressor. The A/C compressor will run
automatically even at cool outside temperatures in order
to dehumidify the air. The A/C indicator light is lit when
the system is operating automatically, even at near
freezing outside temperatures. Press
# on the fan
control to turn off the A/C. For improved window clearing
performance in defog or defrost modes, the A/C
compressor runs automatically.
h (AUTO RECIRCULATION): If the AUTO position
is selected on either the fan or mode control, the
system automatically controls the air inlet to supply
fresh outside air or recirculate the interior air to cool the
car faster. The light on the recirculation button will
come on when the system changes to recirculation.
Outside air can be forced by pressing
h when
the light is lit. For vehicles without rear climate controls,
press
: to force outside air. The next time AUTO
fan or mode is selected, the air inlet will reset back to
AUTO operation.
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