2009 Buick LaCrosse Owner's Manual - Page 7

Power Lumbar Heated Seats On vehicles with this feature, the buttons are located on the climate control panel. On seats with power lumbar, the control is located on the outboard side of the seat cushion. Press the front of the control to increase lumbar support. Press the rear of the control to decrease lumbar support. Keep in mind that as your seating position changes, as it may during long trips, so should the position of your lumbar support. Adjust the seat as needed. Press the button once to activate the high heat setting. Both indicator lights on the button will come on. Press the button again to select the lower temperature setting. Only one indicator light will come on. Press the button a third time to turn the heat off. This feature only works when the ignition is on. 1-3