Safety chains

Always connect the trailer’s safety chains to the frame or hook retainers of the vehicle hitch. To connect the trailer’s safety chains, cross the chains under the trailer tongue and allow slack for turning corners.
If you use a rental trailer, follow the instructions that the rental agency gives to you.
Do not attach safety chains to the bumper.
See also:
Reporting safety defects (U.S. only)
If you believe that your vehicle has
a defect which could cause a crash
or could cause injury or death, you
should immediately inform the
National Highway Traffic Safety
Administration (NHTS ...
Trailer tow false alerts
When towing a trailer, the sensors may detect the trailer thus causing a
false alert. It may be desirable to turn the BLIS off if the false alerts
become annoying. ...
Low speed automatic cancellation
ACC is not functional at vehicle speeds below 18 mph (30 km/h). Once
the vehicle speed drops below 18 mph (30 km/h), an audible alarm will
sound, the head’s up display will flash and the automatic ...
