2001 Cadillac DeVille Owner's Manual - Page 16

Adaptive Seat Control (Option) The adaptive seat control is located on the outboard side of the driver's seat. Use the power seat control first to get the proper position. When the ignition is turned to ON, press the top of the power lumbar control where it is marked AUTO to activate the adaptive feature. The seatback and cushion will inflate to adjust to the driver's body positioning in four-minute cycles. To reshape the lower seatback, press the lumbar control forward to increase support and rearward to decrease support. To turn off the adaptive seat feature, press the control down. The seat will deflate when the adaptive seat control or the ignition is turned off. 1-4