User Manual - Page 138

For 2020 JEEP GRAND CHEROKEE.

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136 SAFETY
FORWARD COLLISION WARNING (FCW)
W
ITH MITIGATION
The Forward Collision Warning (FCW) with
Mitigation system provides the driver with
audible warnings, visual warnings (within the
instrument cluster display), and may apply a
brake jerk to warn the driver when it detects a
potential frontal collision. The warnings and
limited braking are intended to provide the
driver with enough time to react, avoid or
mitigate the potential collision.
NOTE:
FCW monitors the information from the forward
looking sensors as well as the Electronic Brake
Controller (EBC), to calculate the probability of a
forward collision. When the system determines
that a forward collision is probable, the driver
will be provided with audible and visual warn-
ings and may provide a brake jerk warning. If
the driver does not take action based upon
these progressive warnings, then the system
will provide a limited level of active braking to
help slow the vehicle and mitigate the potential
forward collision.
If the driver reacts to the warnings by braking
and the system determines that the driver
intends to avoid the collision by braking but has
not applied sufficient brake force, the system
will compensate and provide additional brake
force as required.
If a Forward Collision Warning with Mitigation
event begins at a speed below 26 mph
(42 km/h), the system may provide the
maximum or partial braking to mitigate the
potential forward collision. If the Forward
Collision Warning with Mitigation event stops
the vehicle completely, the system will hold the
vehicle at a standstill for two seconds and then
release the brakes.
FCW Message
When the system determines a collision with
the vehicle in front of you is no longer probable,
the warning message will be deactivated.
NOTE:
The minimum speed for FCW activation is
1 mph (2 km/h).
The FCW alerts may be triggered on objects
other than vehicles, such as guard rails or
sign posts based on the course prediction.
This is expected and is a part of normal FCW
activation and functionality.
It is unsafe to test the FCW system. To
prevent such misuse of the system, after four
Active Braking events within an ignition cycle,
the Active Braking portion of FCW will be
deactivated until the next ignition cycle.
The FCW system is intended for on-road use
only. If the vehicle is taken off-road, the FCW
system should be deactivated to prevent
unnecessary warnings to the surroundings. If
the vehicle enters 4L Range or ESC “Full Off”
Mode is active, the FCW system will be auto-
matically deactivated.
20_WK_OM_EN_USC_t.book Page 136
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