2011 Ford F450 Super Duty Crew Cab Owner Guide 4th Printing - Page 274

Driving During TCS events the stability control light in the instrument cluster will flash. If the TCS is activated excessively in a short period of time, the braking portion of the system may become temporarily disabled to allow the brakes to cool down. In this situation, TCS will use only engine power reduction to help control the wheels from over-spinning. When the brakes have cooled down, the system will regain all features. Anti-lock braking, RSC௡, and ESC are not affected by this condition and will continue to function during the cool-down period. The engine traction control and brake traction control system may be deactivated in certain situations. See the Switching off AdvanceTrac௡ with RSC௡ section following. Electronic stability control (ESC) Electronic stability control (ESC) may enhance your vehicle's directional stability during adverse maneuvers, for example when cornering severely or avoiding objects in the roadway. ESC operates by applying brakes to one or more of the wheels individually and, if necessary, reducing engine power if the system detects that the vehicle is about to skid or slide laterally. During ESC events, the stability control light in the instrument cluster will flash. Certain adverse driving maneuvers may activate the ESC system, which include but are not limited to: • Taking a turn too fast • Maneuvering quickly to avoid an accident, pedestrian or obstacle • Driving over a patch of ice or other slippery surfaces • Changing lanes on a snow-rutted road • Entering a snow-free road from a snow-covered side street, or vice versa • Entering a paved road from a gravel road, or vice versa • Cornering while towing a heavily loaded trailer (refer to Trailer towing in the Tires, Wheels and Loading chapter). The ESC system may be deactivated in certain situations. See the Switching off AdvanceTrac௡ with RSC௡ section following. 274 2011 F-250/350/450/550 (f23) Owners Guide, 4th Printing USA (fus)