Acura TLX 2021 Owner's Manual page 174

Front
Release Button
To raise the head restraint: Pull it upward.
To lower the head restraint: Push it down
while pressing the release button.
To adjust the front head restraint
forward:
Push the back of it forward.
To return the front head restraint to the
original position:
Press the release button.
Continued
uuSeatsuHead Restraints
173