Lincoln 2010 MKS Owner's Manual page 251

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 for any typical braking situation.
Blocked sensor
If a message regarding a blocked
sensor is displayed, the radar signals
from the sensor, located behind a
fascia cover near the driver side of
the lower grille, have been
obstructed. When the radar signals
are obstructed, a vehicle ahead
cannot be detected and the Collision
Warning system will not function.
The following table lists possible causes and actions for this message
being displayed.
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
interfering with the radar signals
Swirling water, or snow or ice on
the surface of the road may
interfere with the radar signals
Activating/deactivating collision warning system
To turn the warning system and/or chime on or off and set the warning
sensitivity <– –>, refer to Message center in the Instrument Cluster
chapter.
Action
Clean the grille surface in front of
the radar or remove the object
causing the obstruction
Wait a short time. It may take
several minutes for the radar to
detect that it is no longer
obstructed
Do not use the Collision Warning
System in these conditions
because it may not detect, warn,
or respond to potential collisions
Do not use the Collision Warning
System in these conditions
because it may not detect, warn,
or respond to potential collisions
Driving
251