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2004 Mercury Grand Marquis Remote Programming

1. Obtain all remote transmitters including existing working remotes.
2. Turn the ignition from OFF to RUN 4 times within 3 seconds.
3. Doors should lock then unlock indicating that the vehicle is in the programming mode.
4. Within 7.5 seconds:
Press any button on the first remote transmitter.
Doors should lock then unlock.
Within 7.5 seconds:
Press any button on the second remote transmitter.
Doors should lock then unlock.
Within 7.5 seconds:
Repeat step 4 for for all other remotes
5. Wait 7.5 seconds and then turn ignition OFF
6. Wait 20 seconds and then confirm programming by locking and unlocking vehicle.
Please note: a maximum of 4 remote transmitters can be programmed to the same vehicle.