When the headlight(light switch in the headlight or AUTO position) is on and all doors (and tailgate) are locked and closed, the headlight, position light and tail light will come on for 15 seconds if any of the below is performed.
At this time, if you press the door lock button (on the transmitter or smart key), the lights will turn off immediately.
Kia Cee'd JD Service Manual: Heater Unit Repair procedures
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a recovery/recycling/charging station.
3.
When the engine is cool, drain the engine coolant from the radiato ...
Kia Cee'd JD Owners Manual: Headlight (Low, Non-HID Type)
Follow the steps 1 to 7 from the previous
page.
8. Remove the cover by turning it counterclockwise.
9. Remove the socket from the assembly
by turning the socket counterclockwise
until the tabs on the socket align with
the slots on the assembly.
10. Pull the bulb out of the socket.
11. ...