where are heat controls in 2011 buick regal

http://www.buick.com/content/dam/Buick/north_america/usa/nscwebsite/en/home/owners/vehicle_manuals/2011/02_pdf/2011-regal-Owner-Manual.pdf page 2 Chapter 8..... Buick Regal Owner Manual - 2011 8-2 Climate Controls Automatic Operation The system automatically controls the fan speed, air delivery, air conditioning, and recirculation in order to heat or cool the vehicle to the desired temperature. When the indicator light is on, the system is in full automatic operation. If the air delivery mode or fan setting is manually adjusted, the auto indicator turns off and displays will show the selected settings. To place the system in automatic mode: 1. Press AUTO. 2. Set the temperature. Allow the system time to stabilize. Then adjust the temperature as needed for best comfor

Manual Operation Driver and Passenger Temperature Control: The temperature can be adjusted separately for the driver and passenger. Turn the knob clockwise or counterclockwise to increase or decrease the driver or passenger temperature setting. Fan Control: Press the left fan button to decrease the fan speed. Press the right fan button to increase the fan speed. The selected fan speed is indicated by the number of segments shown in the display. Pressing the left fan button longer turns the fan off

When I try to use the auto climate control button on my Refal the air conditioning indicator light comes on. If I try to adjust the temp or turn the the ac off the auto goes off as well. The system won't let me adjust the temp for that auto setting. What am I doing wrong? I'm not having any other issues with my system. Thanks!