NISSAN 2011 Versa Hatchback - Owner's Manual - Manual (Page 26)

Adjustment
Adjust the head restraint so the center is level
with the center of the seat occupant’s ears.
To raise the head restraint, pull it up. To lower, push and hold the lock knob and push
the head restraint down.
WRS0134 LRS0888 LRS0889
Safety—Seats, seat belts and supplemental restraint system 1-7