Electronic Roll Mitigation (Erm); Electronic Stability Control (Esc) - Jeep 2010 Wrangler Owner's Manual

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6. Cycle ignition switch OFF then ON.
7. If the sequence was completed properly, the
"ESC Activation/Malfunction Indicator Light"
will blink several times to confirm HSA is off.
Steps 1-7 must be completed within 90 sec-
onds to turn off HSA. Repeat steps 1-7 to
re-enable HSA functionality.

Electronic Roll Mitigation (ERM)

This 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 steer-
ing wheel angle and vehicle's speed are suffi-
cient to potentially cause wheel lift, it applies
the appropriate brake and may reduce engine
power to lessen the chance that wheel lift will
occur. ERM will only intervene during very
severe or evasive driving maneuvers.
Electronic Roll Mitigation (ERM) can only re-
duce the chance of wheel lift occurring during
severe or evasive driving maneuvers. It cannot
prevent wheel lift due to other factors such as
road conditions, leaving the roadway or striking
objects or other vehicles.
204
NOTE:
Anytime the ESC system is in the "Full Off"
mode, ERM is disabled. Refer to Electronic
Stability Control (ESC) for a complete expla-
nation 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. Electronic Roll Mitigation (ERM) cannot
prevent all wheel lift or rollovers, especially
those that involve leaving the roadway or
striking objects or other vehicles. The capa-
bilities 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.

Electronic Stability Control (ESC)

This system enhances directional control and
stability of the vehicle under various driving
conditions. The ESC corrects for over/under
steering of the vehicle by applying the brake of
the appropriate wheel to assist in counteracting
the over/under steer condition. Engine power
may also be reduced to help the vehicle main-
tain the desired path.
ESC uses sensors in the vehicle to determine
the vehicle path intended by the driver and
compares it to the actual path of the vehicle.
When the actual path does not match the
intended path, ESC applies the brake of the
appropriate wheel to assist in counteracting the
oversteer or understeer condition.
• Oversteer - when the vehicle is turning more
than appropriate for the steering wheel po-
sition.
• Understeer - when the vehicle is turning less
than appropriate for the steering wheel po-
sition.
The "ESC Activation/Malfunction Indicator
Light" (located in the instrument cluster), starts
to flash as soon as the tires lose traction and
the ESC system becomes active. The "ESC
Activation/Malfunction Indicator Light" also
flashes when TCS is active. If the "ESC
Activation/Malfunction Indicator Light" begins
to flash during acceleration, ease up on the