CTA false alerts

Due to the nature of radar technology, there may be certain instances when the BLIS will alert with no object present when backing up. This is known as a false alert. Some level of false alerts are normal.
Circumstances that may cause a false alert when backing up are backing out of a garage, backing into a parking space, and objects very close to the sensor. False alerts are temporary and self correct.
See also:
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 th ...
Replacing interior bulbs
Check the operation of all bulbs frequently ...
Battery
Your vehicle is equipped with a
Motorcraft maintenance-free
battery which normally does not
require additional water during its
life of service.
If your battery has a cover/shield, make sur ...
