Ford 1999 Windstar Owner's Manual page 98

Controls and features
Replacing lost transmitters
• 3–button remote
• 4–button remote
• 5–button remote
If a transmitter has been lost or if you would like to purchase additional
transmitters for your vehicle (up to four may be programmed), take all
your vehicle's transmitters to your dealer or perform the reprogramming
procedure yourself. It will be necessary to reprogram all the transmitters
to the vehicle at the same time while performing this procedure.
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