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: Smart Key Unit Components and components location
Component
Connector Pin Information
No.
Connector A(26 pins)
No.
Connector B(16 pins)
No.
Connector C(22 pins)
1
Battery power load
1
CAN H
...
Kia Cee'd JD Owners Manual: Outside light
Rear turn signal light and stop/tail light
1. Turn off the engine.
2. Open the tailgate.
3. Loosen the light assembly retaining
screws with a cross-tip screwdriver.
4. Remove the rear combination light
assembly from the body of the vehicle.
5. Remove the socket from the assembly
by tu ...