2004 Buick Century Owner's Manual - Page 123

Dual Automatic Climate Control System The vehicle may have this climate control system. The heating, cooling and ventilation can be controlled with it. Automatic Operation AUTO (Automatic): Press the AUTO button for automatic control of the inside temperature, the air delivery mode and the fan speed. There might be a delay of two to three minutes before the fan comes on when the automatic operation is used in cold weather. For the automatic system to function, the temperature must be set between 61°F (16°C) and 89°F (31°C). 1. Adjust the temperature to a comfortable setting. 2. Press the AUTO button. Choosing the coldest or warmest temperature setting will not cause the system to heat or cool any faster. If the system is set at the warmest temperature setting, 90°F (32°C), hot air will be directed to the floor, the fan will increase to the highest speed, and the system will remain in manual mode at that temperature. The system will not return to automatic until the temperature setting is lowered. If the system is set at the coldest temperature setting, 60°F (15°C), cold interior air will be recirculated through the air panel outlets, and the fan will increase to the highest speed. The system will not return to automatic until the temperature is raised. 3-21