Hyundai Sonata LF Owner's Manual page 47

Safety system of your vehicle
NOTICE
If you recline the seatback towards
the front with the head restraint
and seat cushion raised, the head
restraint may come in contact with
the sunvisor or other parts of the
vehicle.
2-18
■ Type A
■ Type B
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Removal/Reinstall
To remove the headrest:
1. Recline the seatback (2) with using
the seatback angle switch (1).
2. Raise headrest as far as it can go.
3. Press the headrest release button
(3) while pulling the headrest up
(4).
WARNING
NEVER allow anyone to travel in a
seat with the headrest removed.
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