BLIS False Alerts

Due to the nature of radar technology, there may be certain instances when the BLIS will alert with no object present in the blind zone. This is known as a false alert. Some level of false alerts are normal.
Circumstances that may cause a false alert are; guardrails, freeway concrete walls, cyclone fencing, sharp turns around a pole or building, or coming to a stop with a vehicle directly behind but very close. False alerts are temporary and self correct.
See also:
Blank Screen
The message center display will be blank after cycling through all of the
Info menu items. ...
Sound Adjustments
Press SOUND repeatedly to cycle through the following features:
BASS: Press
SEEK
to adjust the level of bass.
TREBLE: Press
SEEK
to adjust the level of treble.
BALANCE: Press
SE ...
Security override
To override a bounce-back condition, within two seconds after the
window reaches the bounce-back position, pull and hold the switch up
and the window will travel up with no bounce-back or pinch
...
