Jeep 2014 Grand Cherokee Owner's Manual page 215

The default status of FCW is the "Far" setting and the
Active Braking is the "On" setting, this allows the system
to warn you of a possible collision with the vehicle in
front of you when you are farther away and it applies
limited braking. This gives you the most reaction time to
avoid a possible collision.
Changing the FCW status to the "Near" setting, allows
the system to warn you of a possible collision with the
vehicle in front of you when you are much closer. This
setting provides less reaction time than the "Far" setting,
which allows for a more dynamic driving experience.
Changing the FCW status to "Off" prevents the system
from warning you of a possible collision with the vehicle
in front of you.
Changing the Active Braking status to "Off" prevents the
system of the additional braking provided when the
driver applies the brakes in a potential collision.
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 213
NOTE:
• 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 car, 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.
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