How do you turn off anti theft security on 2004 Mercury Mountaineer?

Answer 1

To turn off the anti-theft security system on a 2004 Mercury Mountaineer, 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 goes off. After that, turn the key to the "Off" position and then attempt to start the engine. If problems persist, consult your owner's manual or a professional for assistance.