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 Service Manual: TJ Joint Components and components location
Components
[LH]
1. BJ assembly
2. BJ circlip
3. BJ boot band
4. BJ boot
5. Shaft
6. TJ boot band
7. TJ boot
8. Spider assembly
9. Retainer ring
10. TJ housing
11. Housing circlip
...
Kia Cee'd JD Service Manual: Intake Manifold Components and components location
Components
1. Intake manifold assembly
2. Intake manifold gasket
3. Electronic throttle body gasket
4. Electronic throttle body
5. Bracket
...