If your trailer is equipped with a braking system, make sure it conforms to your country’s regulations and that it is properly installed and operating correctly.
If your trailer weight exceeds the maximum allowed weight without trailer brakes, then the trailer will also require its own brakes as well. Be sure to read and follow the instructions for the trailer brakes so you’ll be able to install, adjust and maintain them properly.
• Do not tap into or modify your vehicle's brake system.
WARNING - Trailer brakes
Do not use a trailer with its own brakes unless you are absolutely certain that you have properly set up the brake system. This is not a task for amateurs. Use an experienced, competent trailer shop for this work.
Safety chains
Driving with a trailerKia Cee'd JD Owners Manual: Windows
(1) Driver’s door power window switch
(2) Front passenger’s door power window
switch
(3) Rear door (left) power window
switch* (for 5 Door and wagon)
(4) Rear door (right) power window
switch* (for 5 Door and wagon)
(5) Window opening and closing
(6) Automatic power window up*/down* ...
Kia Cee'd JD Service Manual: Rear Door Module Repair procedures
Replacement
1.
Remove the rear door window glass.
(Refer to Rear Door - "Rear Door Window Glass")
2.
Remove the rear door outside handle.
(Refer to Rear Door - "Rear Door Outside Handle")
...