System Limitations; False Alerts; System Errors - Ford 2015 F-150 Owner's Manual

Zone coverage also decreases when
parking at shallow angles. Here, the left
sensor is mostly obstructed; zone coverage
on that side is severely limited.
System Lights, Messages and
Audible Alerts
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The Cross Traffic Alert illuminates an
amber alert indicator in the outside mirror
on the side of your vehicle the approaching
vehicle is coming from. Cross Traffic Alert
also sounds an audible alert and a
message appears in the information
display indicating a vehicle is coming from
the right or left. Cross Traffic Alert works
with the reverse sensing system that
sounds its own series of tones. See
Parking Aid (page 200).
The system uses radar sensors that are
located behind the bumper fascia on each
side of your vehicle. Do not allow mud,
snow or bumper stickers to obstruct these
areas, this can cause degraded system
performance. See Blind Spot
Information System (page 223). In case
the Blind Spot Information System is
blocked, Cross Traffic Alert is blocked at
the same time. A corresponding message
appears in the information display as soon
as you shift the transmission into reverse
(R).
F-150 (TFC), enUSA, Third Printing
Driving Aids

System Limitations

Cross Traffic Alert has its limitations;
situations such as severe weather
conditions or debris build-up on the sensor
area may limit vehicle detection.
The following are other situations that may
limit the Cross Traffic Alert performance:
• Adjacently parked vehicles or objects
obstructing the sensors.
• Approaching vehicles passing at
speeds greater than 37 mph
(60 km/h).
• Driving in reverse faster than 7 mph
(12 km/h).
• Backing out of an angled parking spot.

False Alerts

Note: If your vehicle has a tow bar with a
factory equipped trailer tow module and it
is towing a trailer, the sensors will
automatically turn the Cross Traffic Alert
off. If your vehicle has a tow bar but no
factory equipped trailer tow module, it is
recommended to turn the Cross Traffic Alert
off manually. Operating Cross Traffic Alert
with a trailer attached will cause poor Cross
Traffic Alert performance.
There may be certain instances when there
is a false alert by the Cross Traffic Alert
system that illuminates the alert indicator
with no vehicle in the coverage zone. Some
amount of false alerts are normal; they are
temporary and self-correct.

System Errors

If Cross Traffic Alert senses a problem with
the left or right sensor a message will
appear in the information display. See
Information Messages (page 118).
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