You should always attach chains between your vehicle and your trailer. Cross the safety chains under the tongue of the trailer so that the tongue will not drop to the road if it becomes separated from the hitch.
Instructions about safety chains may be provided by the hitch manufacturer or by the trailer manufacturer. Follow the manufacturer’s recommendation for attaching safety chains. Always leave just enough slack so you can turn with your trailer. And, never allow safety chains to drag on the ground.
Hitches
Trailer brakesKia Cee'd JD Owners Manual: Trailer brakes
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
ow ...
Kia Cee'd JD Owners Manual: For vehicle’s equipped with smart
key system
Key not in vehicle
If the smart key is not in the vehicle and
if any door is opened or closed with the
engine start/stop button in the ACC, ON,
or START position, the warning illuminates
on the LCD display. Also, the chime
sounds for 5 seconds when the smart
key is not in the vehicle ...