2011 Buick Lucern Owner's Manual - Page 173

9 (Fan Control): Turn clockwise or counterclockwise to increase or decrease the fan speed. The fan speed is temporarily reduced between the transition to a new mode. The fan will resume when the new mode is complete. If the airflow seems low when the fan speed is at the highest setting, the passenger compartment air filter may need to be replaced. For more information, see Passenger Compartment Air Filter on page 4 ‑ 25 and Scheduled Maintenance on page 7‑3. A. Fan Control B. Temperature Control C. Air Delivery Mode Control D. Recirculation E. Air Conditioning F. Rear Window Defogger Air Delivery Mode Control: Turn clockwise or counterclockwise to change the direction of the airflow in the vehicle. To change the current mode, select one of the following: H (Vent): Air is directed to the instrument panel outlets. ) (Bi-Level): Air is divided between the instrument panel outlets and the floor outlets. Slightly cooler air is directed to the instrument panel outlets and warmer air is directed to the floor outlets. 6 (Floor): Air is directed to the floor outlets, with some air directed to the windshield and side window outlets. If recirculation is selected while in this mode, it stays on for three minutes to reduce windshield fogging. Operation ( (Off): Turns the climate control system off. Outside air still enters the vehicle and is directed to the floor. The airflow direction and temperature can be adjusted. Temperature Control: Turn clockwise or counterclockwise to increase or decrease the temperature. 4-17