FORD 2011 F-550 v.4 - Manual (Page 58)

TRAILER SWAY REDUCE SPEED (if equipped) — Displayed when
the trailer sway control has detected trailer sway. For more information,
refer to the Driving chapter for more information.
WIRING FAULT ON TRAILER (if equipped) — Displayed if there
are certain faults in the vehicle wiring and trailer wiring/brake system.
Refer to Trailer towing in the Tires, Wheels and Loading chapter for
more information.
Instrument Cluster
58
2011 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)