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Stability ControlPRINCIPLE OF OPERATIONWARNINGSVehicle modifications involvingbraking system, aftermarket roofracks, suspension, steering system,tire construction and wheel and tire sizemay change the handling characteristicsof your vehicle and may adversely affectthe performance of the AdvanceTracsystem. In addition, installing any stereoloudspeakers may interfere with andadversely affect the AdvanceTrac system.Install any aftermarket stereo loudspeakeras far as possible from the front centerconsole, the tunnel, and the front seats inorder to minimize the risk of interfering withthe AdvanceTrac sensors. Reducing theeffectiveness of the AdvanceTrac systemcould lead to an increased risk of loss ofvehicle control, vehicle rollover, personalinjury and death.Remember that even advancedtechnology cannot defy the laws ofphysics. It’s always possible to losecontrol of a vehicle due to inappropriatedriver input for the conditions. Aggressivedriving on any road condition can causeyou to lose control of your vehicleincreasing the risk of personal injury orproperty damage. Activation of theAdvanceTrac system is an indication thatat least some of the tires have exceededtheir ability to grip the road; this couldreduce the operator’s ability to control thevehicle potentially resulting in a loss ofvehicle control, vehicle rollover, personalinjury and death. If your AdvanceTracsystem activates, SLOW DOWN.The AdvanceTrac with Roll StabilityControl system helps you keep control ofyour vehicle when on a slippery surface.The electronic stability control portion ofthe system helps avoid skids and lateralslides and roll stability control helps avoida vehicle rollover. The traction controlsystem helps avoid drive wheel spin andloss of traction. See Using TractionControl (page 166).E72903BABABBABAVehicle without AdvanceTracwith RSC skidding off itsintended route.Vehicle with AdvanceTrac withRSC maintaining control on aslippery surface.167F150 (TF6) , enUSA