Lincoln MKZ 2017 Owner's Manual page 245

Note: Active braking automatically turns on
every time you switch the ignition on.
MKZ (CC9) Canada/United States of America, enUSA, Edition date: 201602, Second Printing
Driving Aids
Blocked Sensors
E236695
242
If a message regarding a blocked sensor or
camera appears in the information display,
the radar signals or camera images are
obstructed. The radar sensor is located
behind a fascia cover near the driver side of
the lower grille. With an obstructed radar,
the Pre-Collision Assist system does not
function and cannot detect a vehicle ahead.
With the front camera obstructed, the
Pre-Collision Assist system does not respond
to pedestrians or stationary vehicles and the
system performance on moving vehicles
reduces. The following table lists possible
causes and actions for when this message
displays.