When properly equipped, trailer sway control will use the vehicle’s AdvanceTrac with RSC system to detect and help reduce trailer sway by applying brake force at individual wheels and, if necessary, by reducing engine power. Trailer sway control is only enabled above 40 mph (64 km/h).

WARNING: Trailer sway control does not prevent a trailer from swaying. It mitigates the sway from increasing once it has occurred. If you are experiencing trailer sway, it is likely that the trailer is improperly loaded for the correct tongue weight or the speed of the vehicle and trailer is too high. Pull the vehicle-trailer over to a safe location to check the trailer weight distribution and tongue load, and reduce speed to a safe level while towing. If trailer sway is experienced, SLOW DOWN.

During trailer sway control events, the stability control light in the instrument cluster will flash momentarily. The message center will also display TRAILER SWAY REDUCE SPEED. In some cases when trailer sway is detected, the vehicle speed is too high and may be at or above a speed at which trailer sway will grow continuously. This may cause the system to activate multiple times, and you may experience a slight deceleration of the vehicle.

Disabling trailer sway control

Trailer sway control can be disabled during any key cycle. Refer to Message center in the Instrument Cluster chapter for more information.

Note that even if it was disabled before turning off the vehicle, trailer sway control will be re-enabled at each new key cycle.

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 (e.g., hill climbing), the driver has significant trailer towing experience, and can control trailer sway and maintain safe operation.