FORD 2010 Flex v.2 - Manual (Page 266)

Trailer sway control (if equipped)
Your vehicle may be equipped with trailer sway control. When properly
equipped, trailer sway control will use the vehicle’s AdvanceTrac
௡ with
RSC
௡ system to detect and mitigate trailer sway by applying brake force
at individual wheels and, if necessary, by reducing engine power.
Note: Trailer sway control does not prevent a trailer from swaying, it
mitigates the sway from increasing once it has occurred. TSC cannot
stop all trailers from swaying. 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. Always use caution when towing a trailer
and follow the tongue weight recommendations. Refer to Trailer towing
in the Tires, Wheels and Loading chapter for more information on
towing a trailer with your vehicle.
During trailer sway control events the icon in the instrument cluster
will flash momentarily. The cluster 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, causing a gradual reduction in speed.
Disabling trailer sway control
Trailer sway control can be disabled during any key cycle. To disable
trailer sway control, refer to the Message center in the Instrument
Cluster chapter. Note that regardless of chosen enable state, trailer sway
control will be re-enabled 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.
Driving
266
2010 Flex (471)
Owners Guide, 2nd Printing
USA (fus)