FORD 2003 Expedition v.4 - Manual (Page 217)

AdvanceTrac
௢ enhances your vehicle’s stability during maneuvers that
require all available tire traction, like in wet/snowy/icy road conditions
and/or when performing emergency maneuvers. In an emergency
lane-change, the driver will experience better overall vehicle traction,
and have better control of the vehicle.
The AdvanceTrac
௢ system helps the driver maintain steering control if
the vehicle begins to slide excessively left or right or spin out.
AdvanceTrac
௢ will attempt to correct the sliding motion by applying
brake force at individual tires and, if necessary, by reducing engine
power.
Driving conditions which may activate AdvanceTrac
௢ include:
• Taking a turn too fast
• Maneuvering quickly to avoid an accident, pedestrian or obstacle
• Hitting a patch of ice
• 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
• Hitting a curb while turning
• 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
of the AdvanceTrac
௢ system.
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
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Driving
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