Automatic Operation
AUTO9(Automatic Fan):When this position
is selected on the fan control, the system will
adjust 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 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 will start
at reduced fan speeds to avoid blowing cold air
into your vehicle until warmer air is available.
The system will start out blowing air at the oor
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 will depend 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 nd 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.
Dual Climate Control System for Vehicles with
Rear Climate Control
211