User Manual - Page 253

For 2021 GRAND CHEROKEE L.

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SAFETY 251
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, the FCW system
will be automatically deactivated.
FCW Braking Status And Sensitivity
The FCW Sensitivity and Active Braking status
are programmable through the Uconnect
system Ú page 207.
NOTE:
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 “Farsetting
allows the system to warn the driver of a
possible collision with the vehicle in front
using an audible/visual warning when the
latter is at a farther distance than the
“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 “Automatic
Emergency Braking (AEB) Limited Service
Required” or “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 braking may not be fully
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.
6
21_WL_OM_EN_USC_t.book Page 251
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