Whenever the front door is opened, the engine start/stop button will illuminate for your convenience. The light will go off after about 30 seconds when the door is closed. It will also go off immediately when the theft-alarm system is armed.
Kia Cee'd JD Service Manual: Components and components location
Component Location
1. EMS box assembly
2. Cooling fan(Low) relay
3. Cooling fan(High) relay
4. ESS relay
5. Blower relay
6. Rear defogger relay
7. HAC relay
8. SSB4(IG2) relay
9. Front wiper relay
10. SSB3(IG1) relay
...
Kia Cee'd JD Service Manual: Back-up Lamp Switch Repair procedures
Inspection
1.
Remove the air cleaner assembly.
(Refer to Engine Mechanical System - "Air Cleaner")
2.
Remove the battery and battery tray.
(Refer to Engine Electrical System - "Battery")
...