Automatic Operation
AUTO (Automatic Fan):
When AUTO is selected on
the fan control, the system automatically adjusts the fan
speed. If the OnStar
®
system is activated when this
position is selected, the fan speed will lower.
AUTO (Automatic Mode)
1. Turn the fan control to AUTO.
2. Turn the mode control to AUTO.
3. Adjust the temperature to a comfortable setting
between 68°F (21°C) and 78°F (26°C).
Choosing the coldest or warmest temperature
setting will not cause the system to heat or cool
any faster. In cold weather, the system starts at
reduced fan speeds to avoid blowing cold air into
the vehicle until warmer air is available. The
system will start out blowing air to 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.
4. Wait a few minutes for the system to automatically
regulate. 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.
When the ENG/MET (English/metric) button on the
Driver Information Center (DIC) is pressed, the display
shows readings in Fahrenheit or Celsius. Use the
ENG/MET button to toggle between the readings.
AUTO (Automatic Air Conditioning):
If AUTO is
selected on the fan or mode control, the system
automatically controls the air conditioning compressor.
The A/C compressor runs 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. Press the A/C button on the fan control to
turn off the A/C. To clear windows better in defog or
defrost modes, the A/C compressor runs automatically
in damp cool conditions.
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Summary of Contents for 2010 Lucerne
Page 6: ...2 NOTES vi...
Page 8: ...Instrument Panel 1 2...
Page 46: ...Put someone on it Get it up to speed Then stop the vehicle The rider does not stop 2 14...
Page 108: ...2 NOTES 2 76...
Page 191: ...United States Super Model Shown Canada and Base Similar 4 31...
Page 268: ...2 NOTES 4 108...
Page 302: ...2 NOTES 5 34...
Page 318: ...When you open the hood on the 4 6L V8 engine here is what you will see 6 16...
Page 422: ...2 NOTES 6 120...
Page 434: ...Engine Drive Belt Routing 3 9L V6 Engine 4 6L V8 Engine 7 12...
Page 436: ...Maintenance Record cont d Date Odometer Reading Serviced By Services Performed 7 14...
Page 437: ...Maintenance Record cont d Date Odometer Reading Serviced By Services Performed 7 15...
Page 438: ...Maintenance Record cont d Date Odometer Reading Serviced By Services Performed 7 16...
Page 475: ...2 NOTES...