2007 Buick Rainier Owner's Manual - Page 171

Driver's Side Temperature Knob: Turn this knob clockwise or counterclockwise to manually raise or lower the temperature on the driver's side of the vehicle. The display will show the temperature setting decreasing or increasing and an arrow pointing toward the driver. This knob can also adjust the passenger's side temperature setting simultaneously if the two zones are linked as described in Passenger's Side Temperature Knob. Passenger's Side Temperature Knob: Turn this knob clockwise or counterclockwise to manually raise or lower the temperature on the passenger's side of the vehicle. The display will show the temperature setting decreasing or increasing and an arrow pointing toward the passenger. The passenger's temperature setting can be set to match and link to the driver's temperature setting by pressing and holding the AUTO button for three seconds. Now, by adjusting the driver's side temperature setting, the passenger's side temperature setting will follow and both arrows will appear on the display. The passenger's side temperature setting also resets and relinks to the driver's side temperature setting if the vehicle has been off for more than three hours. Automatic Operation AUTO (Automatic): When automatic operation is active, the system will control the inside temperature, the air delivery mode, and the fan speed. Use the steps below to place the entire system in automatic mode: 1. Press the AUTO button. When AUTO is selected, the air conditioning operation and air inlet mode will be automatically controlled. The air conditioning compressor will run when the outside temperature is over approximately 40°F (4°C). The air inlet will normally be set to outside air. If it's hot outside, the air inlet will automatically switch to recirculate inside air to help quickly cool down your vehicle. 171