2006 Cadillac DTS Owner's Manual - Page 175

Automatic Operation AUTO 9 (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 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 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 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 your vehicle is started, the display will show the interior temperature settings and the outside temperature. If the AUTO position is selected on the fan or mode control, the system will automatically control 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 will be lit when the system is operating automatically, even at near freezing outside temperatures. Press the A/C button on the fan control to turn off the A/C. For improved window clearing performance in defog or defrost modes, the A/C compressor will run automatically in damp cool conditions. 3-45