When the interior light switch is in the DOOR position and all doors (and tailgate) are locked and closed, the room lamp will come on for 30 seconds if any of the below is performed.
At this time, if you press the door lock button, the lamps will turn off immediately.
Headlamp welcome
Puddle lampKia Cee'd JD Service Manual: Inside Rear View Mirror Repair procedures
Replacement
[Manual Mirror]
1.
Loosen the inside rear view mirror mounting screw (C).
2.
Push the inside rear view mirror base (B) up to remove the inside rear
view mirror assembly (A).
3.
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Kia Cee'd JD Service Manual: Components and components location
Component Location
1. Auto light sensor
2. Head lamps
3. Lighting switch (Auto)
4. Tail lamps
5. Body control module (BCM)
...