Honda 1993 Accord Coupe Owner's Manual page 7

Front Seat Head Restraints
The head restraints are designed to help reduce injuries due to
whiplash. They are located at the top of each front seat-back and
have several height positions. They can be adjusted by pulling up to
the recommended position. To lower them, slide the button next to
the restraint's height bar, while pushing the restraint down.
Adjust so the top of the restraint is approximately level with the
tops of your ears.
If a head restraint must be removed (for cleaning, fabric repair, etc.)
pull the restraint up to its highest position, then slide the button
while pulling the restraint out.
To reinstall, reverse the above procedure.
Do not drive the car with head restraints removed.
Do not try to adjust head restraints white driving.
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