Honda FIT 2017 Owner's Manual page 142

uuAdjusting the SeatsuHead Restraints
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Changing the Rear Seat Head Restraint Positions
140
A passenger sitting in a back seating position
Outer
should adjust the height of their head restraint
to an appropriate position before the vehicle
begins moving.
To raise the head restraint:
Pull it upward.
To lower the head restraint:
Push it down while pressing the release
button.
Center