Safety chains

Always connect the trailer’s safety chains to the hook retainers on the vehicle. 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:
Underbody
Flush the complete underside of your vehicle frequently. Keep body and
door drain holes free from packed dirt. ...
System warnings
System warnings alert you to possible problems or malfunctions in your
vehicle’s operating systems.
In the event of a multiple warning situation, the message center will cycle
the display to show ...
Improved performance without sacrificing fuel economy
Power for the 2011 Lincoln MKX is supplied by the 3.7-liter Duratec V-6,
which employs advanced technology and clever control strategies, such as Twin
Independent Variable Camshaft Timing (Ti-VCT) ...
