Signal indicator mirrors (if equipped)

When the turn signal is activated, the outer portion of the appropriate mirror housing will blink. This provides an additional warning to other drivers that your vehicle is about to turn.
See also:
SOS Post-Crash Alert System™
The system automatically flashes the turn signal lamps and sounds the
horn three times at four second intervals in the event of a serious impact
that deploys an airbag (front, side, side curtain [ ...
Adaptive cruise control
Adaptive cruise control (ACC) is paired with collision warning because both
utilize the forward-looking radar system. With a range up to 600 feet, ACC
monitors and adjusts the speed of the Lincoln M ...
CTA and reverse sensing system (RSS) interaction
CTA works along with the reverse sensing system (RSS) (if equipped).
Become familiar with the warning tones of both systems. ...
