2010 Mercury Mariner Owner Guide 2nd Printing - Page 221

Driving Disabling trailer sway control Trailer sway control can be disabled during any key cycle. Pressing and holding the AdvanceTrac௡ with RSC௡ button for more than five seconds icon will flash will disable the trailer sway control feature and the momentarily and then illuminate solid for that ignition cycle. Trailer sway control can be re-enabled by momentarily pressing the AdvanceTrac௡ with RSC௡ button. Trailer sway control will also be re-enabled at 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. STEERING Your vehicle is equipped with an electric power-assisted steering (EPAS) system. There is no fluid reservoir to check or fill. If your vehicle loses electrical power while you are driving (or if the ignition is turned off), you can steer the vehicle manually, but it takes more effort. Under extreme usage conditions, the steering effort may increase. This occurs to prevent overheating and permanent damage to your steering system. If this should occur, you will neither lose the ability to steer the vehicle manually nor will it cause permanent damage. Typical steering and driving maneuvers will allow the system to cool and steering assist will return to normal. If the steering wanders or pulls, check for: • an improperly inflated tire. • uneven tire wear. • loose or worn suspension components. • loose or worn steering components. • improper steering alignment. A high crown in the road or high crosswinds may also make the steering seem to wander/pull. 221 2010 Mariner (mrn) Owners Guide, 2nd Printing USA (fus)