Lincoln 2010 MKZ - Manual (Page 158)

To reinstall the head restraint, line
the posts up in the holes on the seat
back with the head restraint strap
facing the outside of the vehicle and
push down until the head restraint
locks into place. Lift gently to
ensure it is locked into place.
Refer to Rear adjustable head restraints earlier in this chapter for
more information.
WARNING: If the head restraint has been removed from a
seating position to accommodate a high back child restraint, the
head restraint must be re-installed prior to use of the seat by any other
occupant in order to reduce the risk of personal injury in the event of
a collision.
Check to make sure the child seat is properly secured before each use.
Children 12 and under should be properly restrained in a rear seating
position whenever possible. If all children cannot be seated and
restrained properly in a rear seating position, properly restrain the
largest child in the front seat.
Seating and Safety Restraints
158
2010 MKZ (378)
Owners Guide, 3rd Printing
USA (fus)