FORD 2013 F-550 v.3 - Manual (Page 255)

TRAILER SWAY CONTROL (IF EQUIPPED)
WARNING: Turning off trailer sway control increases the risk of
loss of vehicle control, serious injury or death. Ford does not
recommend disabling this feature except in situations where speed
reduction may be detrimental (such as hill climbing), the driver has
significant trailer towing experience, and can control trailer sway and
maintain safe operation.
Note: This feature does not prevent trailer sway, but reduces it once it
begins.
Note: This feature cannot stop all trailers from swaying.
Note: In some cases, if vehicle speed is too high, the system may turn
on multiple times, gradually reducing vehicle speed.
This feature applies your vehicle brakes at individual wheels and, if
necessary, reduces engine power. If the trailer begins to sway, the
stability control light flashes. The first thing to do is slow your vehicle
down, then pull safely to the side of the road and check for proper
tongue load and trailer load distribution. See the Load Carrying chapter
for specific loading information.
RECOMMENDED TOWING WEIGHTS
Note: Do not exceed a trailer weight of 5000 pounds (2268 kilograms)
when towing with, or by, bumper only.
Note: The total area in square feet (meters) exposed to air resistance of
a moving vehicle and its trailer is the trailer frontal area. Do not exceed
60 feet
2 (5.57 meters 2 ) trailer frontal area.
Note: Exceeding this limitation may significantly reduce the
performance of your towing vehicle. Selecting a trailer with a low
aerodynamic drag and rounded front design helps optimize performance
and fuel economy.
Note: For high altitude operation, reduce the gross combined weight by
2% per 1000 feet (300 meters) starting at the 1000 foot (300 meter)
elevation point.
254 Towing
2013 F-250/350/450/550 (f23)
Owners Guide gf, 3rd Printing, December 2012
USA (fus)