NISSAN 2011 Quest - Owner's Manual - Manual (Page 29)

Black plate (23,1)
Model "E52-D" EDITED: 2010/ 10/ 25
SSS0997
Adjustment
Adjust the head restraint so the center is level
with the center of your ears.
SSS0993
To raise the head restraint, pull it up.
SSS0994
To lower, push and hold the lock knob and push
the head restraint down.
Safety — Seats, seat belts and supplemental restraint system 1-9