FORD 2013 F-150 v.3 - Manual (Page 277)

Safety Chains
Note: Do not attach safety chains to the bumper.
Always connect the trailer’s safety chains to the frame or hook retainers
of your vehicle hitch.
To connect the trailer’s safety chains, cross the chains under the trailer
tongue and allow enough slack for turning tight corners. Do not allow the
chains to drag on the ground.
Trailer Brakes
WARNING: Do not connect a trailer’s hydraulic brake system
directly to your vehicle’s brake system. Your vehicle may not have
enough braking power and your chances of having a collision greatly
increase.
Electric brakes and manual, automatic or surge-type trailer brakes are
safe if you install them properly and adjust them to the manufacturer’s
specifications. The trailer brakes must meet local and federal regulations.
The rating for the tow vehicle’s braking system operation is at
the gross vehicle weight rating, not the gross combined weight
rating.
Separate functioning brake systems are required for safe control
of towed vehicles and trailers weighing more than 1500 pounds
(680 kilograms) when loaded.
Integrated Trailer Brake Controller (If Equipped)
WARNING: The Ford TBC has only been verified to be compatible
with trailers having electric-actuated drum brakes (one to four axles)
and some electric-over-hydraulic (EOH) brakes. It will not activate
hydraulic surge-style trailer brakes. It is the responsibility of the customer
to ensure that the trailer brakes are adjusted appropriately, functioning
normally and all electric connections are properly made. Failure to do so
may result in loss of vehicle control, crash or serious injury.
276 Towing
2013 F-150 (f12)
Owners Guide gf, 3rd Printing, February 2013
USA (fus)