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.
Kia Cee'd JD Service Manual: Cowl Cross Bar Assembly Components and components location
Component Location
1. Cowl cross bar assembly
...
Kia Cee'd JD Owners Manual: Speed limiter indicator
The indicator illuminates when the speed
limit control system is enabled by move
the lever up on the steering
wheel.
The indicator goes off when the
lever
up again to deactivate the system.
If there is a problem with the speed limit
control system, the “---” indicator will blin ...