2007 Buick LaCrosse Owner's Manual - Page 169

Use the right knob to select from the following modes: H (Vent): This mode directs outside air to the instrument panel outlets. If driving in city traffic, and the vehicle is stopped and idling, or the weather is hot, turning on the recirculation mode helps to prevent the air inside the vehicle from becoming stale. After five minutes recirculate will allow some outside air into the vehicle. Operation OFF: Turn the left knob to this position to turn the climate control system off. 9 (Fan): Turn the knob by this symbol, located on the left side of the climate control panel, clockwise or counterclockwise to increase or decrease the fan speed. The fan speed will be temporarily reduced between the transition to a new mode. The fan will resume the original speed when the transition to the new mode is complete. Temperature Control: Turn the center knob clockwise or counterclockwise to increase or decrease the temperature inside your vehicle. ) (Bi-Level): This mode directs half of the air to the instrument panel outlets, and the remaining air to the floor outlets. Some air may be directed toward the windshield. Slightly cooler air is directed to the instrument panel outlets and warmer air is directed to the floor outlets. 6 (Floor): This mode directs most of the air to the floor outlets with some air directed toward the side window outlets and a little air directed to the windshield. In this mode, the system will automatically use outside air. The air conditioning compressor will be engaged unless the outside temperature is 40°F (4°C) or below. 169