What should be securely attached when towing a trailer?

When towing a trailer, it is crucial that the safety chain is securely attached to the trailer hitch. The safety chain serves as a secondary connection between the trailer and the towing vehicle, which is essential for maintaining safety in the event that the primary hitch fails. If the trailer becomes detached while on the road, the safety chain prevents it from completely separating from the towing vehicle, reducing the risk of accidents and providing a degree of control while stopping the vehicle. Proper attachment of the safety chain also ensures that the trailer remains stable and secure while in motion, contributing to overall road safety.

While securing the trailer's load is important for preventing cargo from shifting and causing instability, and appropriately attaching the trailer to the bumper or hitch frame is necessary for the actual towing, the safety chain's role is specifically focused on providing an additional safety mechanism to prevent accidents. Therefore, ensuring that the safety chain is properly connected is a critical aspect of safe towing practices.