2006 Buick Lucerne Owner's Manual - Page 150

Dual Automatic Climate Control System With this system you can control the heating, cooling, and ventilation for your vehicle. If your vehicle has the remote start feature and it is activated, the climate control system will automatically cool the vehicle if the temperature is greater than 90°F (32°C) and heat the vehicle if the temperature is below 37°F (3°C). If the temperature is between 37°F (3°C) and 90°F (32°C), the last control setting selected when the engine was running will be used. Normal operation and the last setting of the climate control system will return after the ignition key is turned to the C (RUN) position. See Remote Keyless Entry System Operation on page 2-6 for more information. 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 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. 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. 3-26