Blocked Sensors
If a message regarding a blocked
sensor appears in the information
display, the radar signals from the
sensor have been obstructed. The
sensors are located behind a fascia
cover near the driver side of the
lower grille. When the sensors are
obstructed, a vehicle ahead cannot
be detected and the collision warning system does not function. The
following table lists possible causes and actions for this message being
displayed.
Cause
Action
The surface of the radar in the
grille is dirty or obstructed in
some way
Clean the grille surface in front of
the radar or remove the object
causing the obstruction
The surface of the radar in the
grille is clean but the message
remains in the display
Wait a short time. It may take
several minutes for the radar to
detect that it is no longer
obstructed
Heavy rain, spray, snow, or fog is
interfering with the radar signals
The collision warning system is
temporarily disabled. Collision
warning should automatically
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
The collision warning system is
temporarily disabled. Collision
warning should automatically
reactivate a short time after the
weather conditions improve.
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.
Driving Aids
217
2014 MKS
(mks)
Owners Guide gf, 1st Printing, April 2013
USA
(fus)