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The following table lists possible causes and actions for this message
being displayed:
The surface of the radar is
dirty or obstructed in some
way
Clean the fascia area in front of the radar,
either side, or remove obstruction.
The surface of the radar is
not dirty or obstructed
Drive normally in traffic for a few minutes
to allow the radar to detect that it is no
longer blocked. Note: The vehicle must
be in D (Drive) and a few vehicles must
pass so that the BLIS can clear a
blocked state.
Heavy rainfall or heavy
snowfall is interfering with
the radar signals
No action required by the driver. The
system will automatically reset to an
unblocked state once the rainfall/snowfall
rate decreases or stops. Do not use BLIS
and/or CTA in heavy rainfall or heavy
snowfall.
Due to the nature of radar technology, it is possible to get a blockage
warning and not be blocked. This is rare and known as a false blockage
warning. A false blocked condition will either self clear or clear after a
key cycle.
Trailer tow false alerts
When towing a trailer, the sensors may detect the trailer thus causing a
false alert. It may be desirable to turn the BLIS off if the false alerts
become annoying.
Day and night brightness
The BLIS and/or CTA alert will automatically dim when the headlamp
switch is in PARK, ON, or AUTO ON and night time darkness has been
detected by the sun sensor.
ALL WHEEL DRIVE (AWD) SYSTEM (IF EQUIPPED)
Your vehicle may be equipped with a full-time all-wheel drive (AWD)
system. The AWD system is an active system, meaning it not only
responds to wheel slip between the front and rear axles but also has the
ability to anticipate wheel slip and transfer torque to the rear wheels
before slip occurs. The AWD system is active all the time and requires no
input from the operator.
Driving
281
2011 Edge (edg)
Owners Guide, 1st Printing
USA (fus)