User Manual - Page 272

For 2021 JEEP GRAND CHEROKEE.

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270 SAFETY
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 4WD Low Range or ESC
Full-Off Mode is active, the FCW system will
be automatically deactivated Ú page 395.
FCW Braking Status And Sensitivity
The FCW Sensitivity and Active Braking status
are programmable through the Uconnect
system Ú page 171.
The default sensitivity of FCW is the “Medium”
setting and the system status is “Warning &
Braking”. This allows the system to warn the
driver of a possible collision with the vehicle in
front using audible/visual warnings and it
applies autonomous braking.
Changing the FCW status to the “Far” setting
allows the system to warn the driver of a
possible collision with the vehicle in front using
audible/visual warning when the latter is at a
farther distance than "Medium" setting. This
provides the most reaction time to avoid a
possible collision.
Changing the FCW status to the “Near” setting
allows the system to warn the driver of a
possible collision with the vehicle in front when
the distance between the vehicle in the front is
much closer. This setting provides less reaction
time than the “Far” and “Medium” settings,
which allows for a more dynamic driving
experience.
NOTE:
Changing the FCW status to “Only Warning”
prevents the system from providing limited
active braking, or additional brake support if
the driver is not braking adequately in the
event of a potential frontal collision, but
maintains the audible and visual warnings.
Changing the FCW status to “Off” prevents
the system from providing autonomous
braking, or additional brake support if the
driver is not braking adequately in the event
of a potential frontal collision.
The system will retain the last setting
selected by the driver after ignition shut
down.
FCW may not react to irrelevant objects such
as overhead objects, ground reflections,
objects not in the path of the vehicle,
stationary objects that are far away,
oncoming traffic, or leading vehicles with the
same or higher rate of speed.
FCW will be disabled like ACC, with the
unavailable screens.
FCW Limited Warning
If the instrument cluster displays “ACC/FCW
Limited Functionality” or “ACC/FCW Limited
Functionality Clean Front Windshield”
momentarily, there may be a condition that
limits FCW functionality. Although the vehicle is
still drivable under normal conditions, the active
WARNING!
Forward Collision Warning (FCW) is not
intended to avoid a collision on its own, nor
can FCW detect every type of potential
collision. The driver has the responsibility to
avoid a collision by controlling the vehicle via
braking and steering. Failure to follow this
warning could lead to serious injury or death.
21_WK_OM_EN_USC_t.book Page 270
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