2012 Buick LaCrosse Owner Manual - Page 61

Seats and Restraints Pull and push on the head restraint after the button is released to make sure that it is locked in place. The front head restraints are not designed to be removed. 3-3 Rear Seat Push down on the head restraint after the button is released to make sure that it is locked in place. If you are installing a child restraint in the rear seat, see "Securing a Child Restraint Designed for the LATCH System" under Lower Anchors and Tethers for Children (LATCH System) on page 3‑44. Pull the head restraint up to raise it. To lower the head restraint, press the release button, located on the head restraint post on the top of the seatback, while you push the head restraint down.