2005 Nissan Xterra Owner's Manual - Page 22

WRS0131 WRS0389 WRS0213 Seat lifter (if so equipped for driver's seat) Turn either dial to adjust the angle and height of the seat cushion to the desired position. Lumbar support (if so equipped for driver's seat) The lumbar support feature provides lower back support to the driver. Move the lever forward or backward to adjust the seat lumbar area. HEAD RESTRAINT ADJUSTMENT To raise the head restraint, pull it up. To lower, push and hold the lock knob and push the head restraint down. The head restraints on the rear seats are removable. WARNING Head restraints should be adjusted properly as they may provide significant protection against injury in an accident. Do not remove them. Check the adjustment after someone else uses the seat. 1-4 Safety-Seats, seat belts and supplemental restraint system