Lincoln 2010 MKZ - Manual (Page 223)

WARNING: Just prior to the system recognizing a blocked
condition and alerting the driver, the number of missed objects
will increase. To help avoid injuries, NEVER use the BLIS
௡ as a
replacement for using the side and rear view mirrors and looking over
your shoulder before changing lanes. BLIS
௡ is not a replacement for
careful driving and only an assist.
Once blockage is removed, the system will require some driving time and
detection of at least two vehicle object prior to realizing it is unblocked,
or the driver can cycle the ignition key. If blocked and the ignition key is
cycled, the system resets to unblocked. If however blockage is still
present after the key cycle, the system will sense again that it is blocked
after driving in traffic.
The following table lists possible causes and actions for this message
being displayed:
The surface of the left or
right radar is dirty or
obstructed in some way Clean the fascia area in front of the radar,
either left or right side, or remove
obstruction.
The surface of the left or
right 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 go unblocked
once the rainfall/snowfall rate decreases
or stops. Do not use BLIS
௡-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 left and right sensor may detect the trailer
thus causing a false alert. It may be desirable to turn the BLIS
௡ off if the
false alerts become annoying.
Driving
223
2010 MKZ (378)
Owners Guide, 3rd Printing
USA (fus)