FORD 2003 Mustang v.5 - Manual (Page 54)

To replace the battery:
1. Twist a thin coin
between the two halves
of the remote entry
transmitter near the
key ring. DO NOT
TAKE THE RUBBER
COVER AND CIRCUIT
BOARD OFF THE FRONT HOUSING OF THE
REMOTE ENTRY TRANSMITTER.
2. Do not wipe off any
grease on the battery
terminals on the back
surface of the circuit
board.
3. Remove the old battery.
4. Insert the new battery. Refer to the diagram
inside the remote entry transmitter for the correct
orientation of the battery. Press the battery down to
ensure that the battery is fully seated in the battery
housing cavity.
5. Snap the two halves back together.
Note: 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.
Replacing lost remote entry transmitters
If you would like to have your remote entry
transmitter reprogrammed because you lost one, or
would like to buy additional remote entry
transmitters, you can either reprogram them
yourself, or take all remote entry transmitters to
your authorized dealer for reprogramming.
How to reprogram your remote entry transmitters
You must have all remote entry transmitters
(maximum of four) available before beginning this
procedure.
2003 Mustang (mus)
Owners Guide (post-2002-fmt)
USA English (fus)
Locks and Security
54