Kia Rio: Headrest (for front seat) / Adjusting the height up and down

To raise the headrest, pull it up to the desired position (1). To lower the headrest,
push and hold the release button (2) on the headrest support and lower the headrest
to the desired position (3).
CAUTION
Excessive pulling or pushing may damage the headrest.

✽ NOTICE
If you recline the seatback towards the front with the headrest and seat cushion
raised, the headrest may come in contact with the sunvisor or other parts of the
vehicle.
The driver's and front passenger's seats are equipped with a headrest for the
occupant's safety and comfort.
The headrest not only provides comfort for the driver and front passenger, but
also ...
To remove the headrest:
1. Recline the seatback (2) with the recline lever(1).
2. Raise headrest as far as it can go.
3. Press the headrest release button (3) while pulling the headrest up (4).
...
Other information:
The following items must be serviced more frequently on cars normally used under
severe driving conditions. Refer to the chart below for the appropriate maintenance
intervals.
R : Replace
I : Inspect and, after inspection, clean, adjust, repair or replace if necessary
Severe driving cond ...
Scheduled maintenance service precaution
Follow the Normal Maintenance Schedule if the vehicle is usually operated where
none of the following conditions apply. If any of the following conditions apply,
follow the Maintenance Under Severe Usage Conditions.
Repeated driving short distance of ...