Jeep Grand Cherokee 2013 Owner's Manual page 244

242 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
FCW monitors the information from the forward looking
sensor as well as the Electronic Brake Controller (EBC),
wheel speed sensors, i.e., to calculate a probable rear-end
collision. When the system determines that a rear-end
collision is probable a warning message (both audible
and visual) will be displayed on the EVIC. When the
system determines a collision with the vehicle in front of
you is no longer probable, the warning message will be
deactivated.
FCW Message
NOTE:
• The minimum speed for FCW activation is 10 mph
(16 km/h).
• When entering or driving in a curve, the FCW alerts
may be triggered on objects other than vehicles such as