Ford taurus se 2002 Owner's Manual page 73

Controls and features
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:
• weather conditions
• nearby radio towers
• structures around the vehicle
• other vehicles parked next to the vehicle
To replace the battery:
1. Twist a thin coin between the two
halves of the transmitter near the
key ring. DO NOT TAKE THE
FRONT PART OF THE
TRANSMITTER APART.
2. Place the positive (+) side of new
battery in the same orientation.
Refer to the diagram inside the
transmitter unit.
3. Snap the two halves back
together.
Replacement of the battery will not cause the remote transmitter to
become deprogrammed from your vehicle. The remote transmitter should
operate normally after battery replacement.
PERIMETER ALARM SYSTEM (IF EQUIPPED)
The perimeter anti-theft system will help prevent your vehicle from
unauthorized entry.
If there is any potential perimeter anti-theft problem with your vehicle,
ensure ALL key fobs (remote entry transmitters) are brought to the
dealership, to aid in troubleshooting.
Arming the system
When armed, this system will help protect your vehicle from
unauthorized entry. When unauthorized entry occurs, the system will
flash the headlamps and/or parking lamps, and will chirp the horn.
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