Jeep Grand Cherokee 2012 Owner's Manual page 230

228 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
• FCW will not react to irrelevant objects such as over-
head objects, ground reflections, objects not in the path
of the car, stationary objects that are far away, oncom-
ing traffic, or leading vehicles with the same or higher
rate of speed.
• FCW will be disabled like ACC below with the un-
available screens.
FCW Unavailable Warning
If the system turns off, and the EVIC displays "ACC/
FCW Unavailable, Vehicle System Error", there may be a
temporary malfunction that limits FCW functionality.
Although the vehicle is still drivable under normal
conditions, FCW will be temporarily unavailable. If this
occurs, try activating FCW again later, following a key
cycle. If the problem persists, see your authorized dealer.
Service FCW Warning
If the system turns off, and the EVIC displays "ACC/
FCW Unavailable Service Radar Sensor", it indicates
there is an internal system fault. Although the vehicle is
still drivable under normal conditions, have the system
checked by an authorized dealer.
ACC/FCW Unavailable Warning
I n f o r m a t i o n P r o v i d e d b y :