2009 Cadillac CTS-V Owner's Manual - Page 9

Pull the head restraint up to raise it. To lower the head restraint, press the button, located on the top of the seatback, and push the restraint down. Push down on the head restraint after the button is released to make sure that it is locked in place. The vehicle's head restraints are not designed to be removed. Active Head Restraint System On vehicles with an active head restraint system in the front outboard seating positions, the head restraints automatically tilt forward to reduce the risk of neck injury if the vehicle is hit from behind. 1-3