1997 Ford Crown Victoria Owner's Manual - Page 122

NOTE: The operating range of the remote entry system can also be affected by weather conditions (such as very cold temperatures) or structures around the vehicle (buildings, other vehicles, radio and TV towers, etc.). Typical operating range will allow you to be up to 33 feet (10 meters) away from your vehicle. Replacement/additional transmitters In the event a transmitter is lost, a new one may be purchased from your dealer. To program replacement or additional transmitters you must have all the transmitters intended for use on your vehicle. Initiating the following procedure erases all prior programmed transmitters, thus ALL must be reprogrammed at the same time. 1. 2. 3. Enter the factory keyless entry code. Your personal code will not allow programming. Press the 1/2 button. Press one button on each of the transmitters to be programmed. Each transmitter button must be pressed within seven (7) seconds of the prior one. Each time a transmitter is successfully programmed, all of the vehicle doors will lock and then unlock to verify programming. If the doors did not lock/unlock, your transmitter was not programmed. 121