Ford 2002 Crown Victoria Manual page 95

Sounding a panic alarm
Press this control to activate the
alarm.
To deactivate the alarm, press the
control again or turn the ignition to
ACC or ON.
Panic alarm will only operate with
the ignition in the OFF position.
Opening the trunk
Press the control once to open the
trunk.
Ensure that the trunk is closed and
latched before driving your vehicle.
Failure to latch the trunk may cause
objects to fall out of the trunk or
block the rear view. This feature will
not work with the transmission out
of P (Park) or N (Neutral) if the
ignition is in either the ACC or ON
position.
Replacing the battery
The remote transmitter is powered by one coin type three-volt lithium
battery CR2032 or equivalent. Typical operating range will allow you to
be up to 10 meters (33 feet) away from your vehicle. A decrease in
operating range can be caused by the following factors:
Weather conditions
Nearby radio towers
Structures around the vehicle
Other vehicles parked next to the vehicle
To replace the battery:
Locks and Security
95