How do i reset the security on my 2004 Ford Freestar?

To reset the security system on your 2004 Ford Freestar, insert the key into the ignition and turn it to the "On" position without starting the engine. Leave it in this position for about 10 minutes until the security light turns off. Turn the key back to the "Off" position for a few seconds, then try starting the vehicle. If issues persist, consult your owner's manual or a professional for further assistance.