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: Components and components location
Component Location
1. Panoramaroof
2. Panoramaroof switch
3. Panoramaroof motor & controller
4. Roller blind motor & slave controller
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Kia Cee'd JD Service Manual: Roller Blind Motor Repair procedures
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Remove the roof trim assembly.
(Refer to Body - "Roof Trim Assembly")
3.
Disconnect the connector (A).
4 ...