Windows And Mirrors; Turning The System On And Off; Detection Errors - Ford C-MAX Owner's Manual

Detection limitations
There may be certain instances where
vehicles entering and exiting the blind spot
zones may not be detected.
Instances which may cause non-detection:
• Debris build up on the rear bumper
panels in the area of the sensors.
• Certain manoeuvring of vehicles
entering and exiting the blind zone.
• Vehicles passing through the blind zone
at high speed.
• Severe weather conditions.
• Several vehicles passing through the
blind zone following each other closely.
False alerts
Note: False alerts are temporary and will
self correct.
There may be certain instances when the
system will alert with no vehicle present in
the blind zone.
Circumstances where false alerts may
occur:
• Road guardrails.
• Highway concrete walls.
• Construction areas.
• Sharp turns around a building.
• Bushes and trees.
C-MAX (CB7)

Windows and Mirrors

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• Cyclists and motorcyclists.
• Coming to a stop with a vehicle directly
behind but very close.

Turning the system on and off

Note: The on or off position will remain until
manually changed.
You can turn the system on and off using
the information display. See Information
Displays (page 81).
When you turn the system off no further
alerts will be received. The BLIS warning
indicator will illuminate. See Warning
Lamps and Indicators (page 77).

Detection errors

Note: The alert indicator in the mirror will
not illuminate.
If the system senses a fault on either
sensor, the system warning symbol will
illuminate and remain on. The information
display will confirm the fault and indicate
whether the left or right side is affected.
Blocked sensor
WARNING
Prior to the system recognizing a
blocked condition and issuing a
warning, the number of missed
objects will increase.
CAUTION
The sensors may not detect vehicles
in heavy rain or other conditions that
cause disruptive reflections.
Note: Keep the rear bumper area
surrounding the sensors free from dirt, ice
and snow.
If a sensor becomes blocked the system
performance may degrade. A blocked
sensor message may be displayed.