Perimeter alarm system

The perimeter alarm system will warn you in case of unauthorized entry to your vehicle.
When the following types of unauthorized entry occur:
• any door, the hood or the liftgate/trunk is opened without using the
keypad, the remote entry transmitter or the intelligent access
transmitter,
• or if the ignition is turned on when using an invalid key,
the perimeter alarm will flash the turn signal lamps and sound the horn
up to a total of 10 times.
See also:
How does the airbag supplemental restraint system work?
The airbag SRS is designed to
activate when the vehicle sustains
longitudinal deceleration sufficient
to cause the sensors to close an
electrical circuit that initiates airbag
inflation. The ...
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 [ ...
Overview
The Lincoln Navigator serves as Lincoln's full-sized luxury SUV. The
Navigator shares the same platform with the lesser Ford Expedition full-size
SUV. Introduced in 1998, the Navigator has proven ...
