Lincoln 2014 MKZ Owner's Manual page 223

Cause
The surface of the radar in the grille is
dirty or obstructed in some way
The surface of the radar in the grille is
clean but the message remains in the
display
Heavy rain, spray, snow, or fog is inter-
fering with the radar signals
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:
Driving Aids
Clean the grille surface in front of the
radar or remove the object causing the
Wait a short time. It may take several
minutes for the radar to detect that it
The collision warning system is
temporarily disabled. Collision warning
should automatically reactivate a
short time after the weather conditions
The collision warning system is
temporarily disabled. Collision warning
should automatically reactivate a
short time after the weather conditions
• 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).
•
220
Action
obstruction
is no longer obstructed
improve
improve