Action
Cause
Clean the grille surface in front of the radar
or remove the object causing the obstruc-
tion
The surface of the radar in the grille is dirty
or obstructed in some way
Wait a short time. It may take several
minutes for the radar to detect that it is no
longer obstructed
The surface of the radar in the grille is clean
but the message remains in the display
The collision warning system is temporarily
disabled. Collision warning should automat-
ically reactivate a short time after the
weather conditions improve
Heavy rain, spray, snow, or fog is interfering
with the radar signals
The collision warning system is temporarily
disabled. Collision warning should automat-
ically reactivate a short time after the
weather conditions improve
Swirling water, or snow or ice on the surface
of the road may interfere with the radar
signals
System Limitations
WARNING
The collision warning system’s brake
support can only help reduce the
speed at which a collision occurs if
the driver applies the vehicle’s brakes. The
brake pedal must be pressed just like any
typical braking situation.
Due to the nature of radar technology,
there may be certain instances where
vehicles do not provide a collision warning.
These include:
•
Stationary vehicles or vehicles moving
below 6 mph (10 km/h).
•
Pedestrians or objects in the roadway.
•
Oncoming vehicles in the same lane.
•
Severe weather conditions (see
blocked sensor section).
•
Debris build-up on the grille near the
headlamps (see blocked sensor
section).
•
Small distance to vehicle ahead.
•
Steering wheel and pedal movements
are large (very active driving style).
•
Certain conditions may reduce the visibility
of the warning lamp; therefore, it is
recommended to keep the audible warning
on.
If the front end of the vehicle is hit or
damaged, the radar sensing zone may be
altered causing missed or false collision
warnings. See your authorized dealer to
have your collision warning radar checked
for proper coverage and operation.
204
Fusion/Mondeo (CC7)
Driving Aids
