2003 Lincoln Navigator Owner Guide 1st Printing (Spanish) - Page 621

Driving • Driving on slick surfaces • Cornering while towing a heavily loaded trailer (refer to Trailer Towing in this chapter) The AdvanceTrac௢ system automatically turns on when the engine is started. However, the system does not function when the vehicle is traveling in R (Reverse) or, if equipped with four-wheel drive, in 4L (4X4 LOW). In R (Reverse) or in 4L (4X4 LOW), ABS and the traction enhancement feature will continue to function. The AdvanceTrac௢ button allows the driver to control the availability O F of the AdvanceTrac௢ system. F AdvanceTrac௢ system status is indicated by a warning indicator light with a "sliding car" icon in the instrument cluster that will flash when the system is activated and an indicator light in the control button that will illuminate when the system is turned off. If a failure is detected in the AdvanceTrac௢ system, the warning indicator light in the instrument cluster will stay on. If the warning indicator light in the instrument cluster remains on while the engine is running, have the system serviced immediately. Pressing the control once will disable the AdvanceTrac௢ stability enhancement and the engine power reduction portion of the traction enhancement feature; the brake portion of the traction enhancement feature will still function normally. Pressing and holding the control for more than five seconds will disable the AdvanceTrac௢ stability enhancement and traction enhancement feature. If the vehicle is stuck in snow or mud or when driving in deep sand, switching off the AdvanceTrac௢ system may be beneficial so the wheels are allowed to spin. If your vehicle seems to lose engine power while driving in deep sand or very deep snow, switching off the AdvanceTrac௢ stability enhancement feature will restore full engine power and will enhance momentum through the obstacle. 230