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.
See also:
Memory feature (seat, mirrors and steering column)
The intelligent access key (IA key) allows you to recall the memory
seat/power mirrors/steering column feature.
Press to automatically move the
seat, power mirrors and steering
column to the ...
2011 Lincoln MKZ Review
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CTA false alerts
Due to the nature of radar technology, there may be certain instances
when the BLIS will alert with no object present when backing up. This
is known as a false alert. Some level of false alerts ar ...
