2006 Ford Expedition Owner Guide 2nd Printing (Spanish) - Page 659

Driving RSC 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௡ with RSC 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௡ with RSC stability enhancement system will restore full engine power and will enhance momentum through the obstacle. Some drivers may notice a slight movement of the brake pedal when the AdvanceTrac௡ with RSC performs a system self-check. During AdvanceTrac௡ with RSC system operation you may experience the following: • A rumble or grinding noise • A slight deceleration of the vehicle • The AdvanceTrac௡ with RSC indicator light will flash • If your foot is on the brake pedal, you will feel a vibration in the pedal. • If the driving condition is severe and your foot is not on the brake, the brake pedal will move to apply higher brake forces. You may also hear a whoosh of air from under the instrument panel during this severe condition. All these conditions are normal during AdvanceTrac௡ with RSC operation. Do not alter or modify your vehicle's suspension or steering; the resulting changes to the vehicle's handling can adversely affect the AdvanceTrac௡ with Roll Stability Control௢ system. Also, do not install a stereo loudspeaker near the front center console or under either front seat. The speaker vibrations can adversely affect the AdvanceTrac௡ with Roll Stability Control௢ sensors located in this area. Note: Pressing the AdvanceTrac௡ with RSC button will disable the AdvanceTrac௡ with RSC system. Aggressive driving in any road conditions can cause you to lose control of your vehicle increasing the risk of severe personal injury or property damage. The occurrence of an AdvanceTrac௡ with Roll Stability Control௢ event is an indication that at least some of the tires have exceeded their ability to grip the road; this may lead to an increased risk of loss of vehicle control, vehicle rollover, personal injury and death. If you experience a severe road event, SLOW DOWN. 251 2006 Expedition (exd) Owners Guide (post-2002-fmt) USA (fus)