FORD 2013 Flex v.1 - Manual (Page 253)

Reasons for messages being displayed
The radar surface is
dirty or obstructed Clean the fascia area in front of the radar or
remove the obstruction.
The radar surface is
not dirty or obstructed Drive normally in traffic for a few minutes to
allow the radar to detect passing vehicles so it
can clear the blocked state.
Heavy rainfall/snowfall
interferes with the
radar signals No action required. The system automatically
resets to an unblocked state once the
rainfall/snowfall rate decreases or stops. Do
not use BLIS
௡ and/or CTA in these conditions.
System Limitations
The BLIS
௡ and CTA systems do have their 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 BLIS
௡:
• Certain maneuvering of vehicles entering and exiting the blind zone.
• Vehicles passing through the blind zone at very fast rates.
• When several vehicles forming a convoy pass through the blind zone.
The following are other situations that may limit the CTA system:
• Adjacently parked vehicles or objects obstructing the sensors.
• Approaching vehicles passing at speeds greater than 15 mph
(24 km/h).
• Driving in reverse faster than 3 mph (5 km/h).
• Backing out of an angled parking spot.
False Alerts
Note: When towing a trailer, the sensors detect may detect the trailer,
causing a false alert. You may want to turn the BLIS
௡ off if the false
alerts become annoying.
There may be certain instances when either the BLIS
௡ or CTA systems
illuminate the alert indicator with no vehicle in the coverage zone; this is
known as a false alert. Some amount of false alerts are normal; they are
temporary and self-correct.
Driving Aids 253
2013 Flex (471)
Owners Guide gf, 1st Printing
USA (fus)