Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY2009MILAN PREMIER, 3.0 1, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 652 (ANTI-THEFT - PATS)GENERAL PROCEDURESKEY PROGRAMMING SWITCH STATE CONTROLUNLIMITED KEY MODE PROGRAMMINGDISABLING UNLIMITED KEY MODE
2009 Mercury Milan Premier, 3.0 1, AWD
Disabling Unlimited Key Mode
2009 Mercury Milan Premier, 3.0 1, AWDSECTION Disabling Unlimited Key Mode
WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
- Using a diagnostic tool, select instrument cluster from the menu. Follow SECURITY ACCESS to obtain security access. For additional information, refer to ANTI-THEFT SECURITY ACCESS .
- Select: DISABLE UNLIMITED KEY MODE.
- Select: IGNITION KEY CODE ERASE.
- Disconnect the diagnostic tool and turn the ignition lock cylinder to the OFF position.
- Program 2 keys to enable the vehicle by turning each key to the ON position. Make sure that each key remains in the ON position for a minimum of 6 seconds.
- Program any additional keys using either the KEY PROGRAMMING USING TWO PROGRAMMED KEYS or KEY PROGRAMMING USING DIAGNOSTIC EQUIPMENT .
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.