wheel spin by momentarily applying the brakes to the wheel that is
slipping. Traction control is most active at low speeds.
During TCS events, the stability control light in the instrument cluster
will flash.
If the TCS system is activated excessively in a short period of time, the
braking portion of the system may become temporarily disabled to allow
the brakes to cool down. In this situation, TCS will use only engine
power reduction or transfer to help control the wheels from
over-spinning. When the brakes have cooled down, the system will regain
all features. Anti-lock braking, RSC
威
, and ESC are not affected by this
condition and will continue to function during the cool-down period.
The engine traction control and brake traction control system may be
deactivated in certain situations. See the
Switching off traction control
section following.
Electronic stability control (ESC)
Electronic stability control (ESC) may enhance your vehicle’s directional
stability during adverse maneuvers, for example when cornering severely or
avoiding objects in the roadway. ESC operates by applying brakes to one or
more of the wheels individually and, if necessary, reducing engine power if
the system detects that the vehicle is about to skid or slide laterally.
During ESC events, the stability control light in the instrument cluster
will flash.
Certain adverse driving maneuvers may activate the ESC system, which
include but are not limited to:
•
Taking a turn too fast
•
Maneuvering quickly to avoid an accident, pedestrian or obstacle
•
Driving over a patch of ice or other slippery surfaces
•
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
•
Cornering while towing a heavily loaded trailer (refer to
Trailer
towing
in the
Tires, Wheels and Loading
chapter).
Roll Stability Control™ (RSC
威
)
Roll Stability Control™ (RSC
威
) may help to maintain roll stability of the
vehicle during adverse maneuvers. RSC
威
operates by detecting the
vehicle’s roll motion and the rate at which it changes and by applying the
brakes to one or more wheels individually.
Driving
236
2012 Navigator
(nav)
Owners Guide, 1st Printing
USA
(fus)
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