Ford 1998 Windstar Owner's Manual page 134

Disarming a Triggered System
The alarm can be disarmed by:
unlocking any door with the key, or
using the UNLOCK control on the remote entry transmitter
using the PANIC button of the remote entry transmitter
NOTE: The flashing lights and honking horn will shut off
automatically approximately two minutes and 45
seconds after the system is triggered. It will trigger
again if another intrusion occurs. However, the starter
circuit remains disabled until the system is disarmed.
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