2007 Buick Terraza Owner's Manual - Page 198

) (Bi-Level): This mode directs half of the air to the instrument panel outlets, then directs the remaining air to the floor outlets. Cooler air is directed to the upper outlets and warmer air to the floor outlets. 6 (Floor): This mode directs most of the air to the floor outlets. Use this mode to send air to the rear of the vehicle. Keep the area under the front seats free of objects that could obstruct airflow to the rear of the vehicle. Outside Air: This mode is automatically selected when your vehicle is in any mode except maximum air conditioning. The right knob can also be used to select defog or defrost mode. For more information, see "Defogging and Defrosting" later in this section. You may notice a slight change in engine performance when the air conditioning compressor shuts off and turns on again. This is normal. The system is designed to make adjustments to help with fuel economy while still maintaining the selected temperature. On hot days, open the windows to let hot inside air escape; then close them and switch to maximum air conditioning mode. This helps to reduce the time it takes for your vehicle to cool down. It also helps the system to operate more efficiently. The air conditioning system removes moisture from the air, so you may sometimes notice a small amount of water dripping underneath your vehicle while idling or after turning off the engine. This is normal. # (Air Conditioning): Press this button to turn the air conditioning system on or off. When it is pressed, an indicator light in the button will come on to let you know that air conditioning is activated. ( (Heated Seats): Press this button to turn on the heated seats. The button on the left controls the driver's seat and the button on the right controls the passenger's seat. See Heated Seats on page 10 for additional information. 198