Jeep CHEROKEE User Manual page 80

Dynamic Steering Torque (DST)
Dynamic Steering Torque (DST) is a feature
of the Electronic Stability Control (ESC) and
the Electric Power Steering (EPS) modules,
that provides torque at the steering wheel for
certain driving conditions, in which the ESC
module is detecting vehicle instability. The
torque that the steering wheel receives is
only meant to help the driver realize optimal
steering behavior in order to reach/maintain
vehicle stability. The only notification the
driver receives that the feature is active is
the torque applied to the steering wheel.
NOTE:
The DST feature is only meant to help the
driver realize the correct course of action
through small torques on the steering wheel,
which means the effectiveness of the DST
feature is highly dependent on the driver's
sensitivity and overall reaction to the applied
torque. It is very important to realize that this
feature will not steer the vehicle, meaning
the driver is still responsible for steering the
vehicle.
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Electronic Brake Force Distribution (EBD)
The Electronic Brake Force Distribution
(EBD) function manages the distribution of
the braking torque between the front and
rear axles by limiting braking pressure to the
rear axle. This is done to prevent overslip of
the rear wheels to avoid vehicle instability,
and to prevent the rear axle from entering
ABS before the front axle.
Electronic Roll Mitigation (ERM)
The Electronic Roll Mitigation (ERM) system
anticipates the potential for wheel lift by
monitoring the driver's steering wheel input
and the speed of the vehicle. When ERM
determines that the rate of change of the
steering wheel angle and vehicle's speed are
sufficient to potentially cause wheel lift, it
then applies the appropriate brake and may
also reduce engine power to lessen the
chance that wheel lift will occur. ERM can
only reduce the chance of wheel lift occur-
ring during severe or evasive driving maneu-
vers; it cannot prevent wheel lift due to other
factors, such as road conditions, leaving the
roadway, or striking objects or other vehicles.
NOTE:
ERM is disabled anytime the ESC is in "Full
Off" mode (if equipped). Refer to "Electronic
Stability Control (ESC)" in this section for a
complete explanation of the available ESC
modes.
WARNING!
Many factors, such as vehicle loading,
road conditions and driving conditions,
influence the chance that wheel lift or
rollover may occur. ERM cannot prevent all
wheel lift or roll overs, especially those
that involve leaving the roadway or striking
objects or other vehicles. The capabilities
of an ERM-equipped vehicle must never
be exploited in a reckless or dangerous
manner which could jeopardize the user's
safety or the safety of others.