Acura 2012 ZDX Owner's Manual page 148

uuAdjusting the SeatsuAdjusting the Seat Positions
■
Changing the Rear Seat Head Restraint Positions
Center
Outer
Tilt Button
Release Button
146
A passenger sitting in a back seating position
should adjust the height of their head restraint
to an appropriate position before the vehicle
begins moving.
To raise the center head restraint:
Push up on the bottom.
To lower the center head restraint:
Push it down while pressing the release
button.
To tilt the outer head restraint:
Press the tilt button, and then fold it down
backward.
To raise the outer head restraint:
Pull it up by hand.