Saving money on car maintenance and repairs is a priority for many car owners. One area where costs can quickly escalate is key replacement and programming. Dealerships often charge significant fees for even simple procedures like programming a new car key. Fortunately, for many Ford vehicles, programming a new key can be done at home, potentially saving you a considerable amount of money. This guide will walk you through the process of programming a Ford car key without needing the original, focusing on the Passive Anti-Theft System (PATS), also known as SecuriLock.
Understanding the Ford PATS System
Ford’s Passive Anti-Theft System (PATS), sometimes referred to as SecuriLock or transponder key system, is a security feature designed to prevent vehicle theft. Introduced in the mid-1990s, PATS immobilizes the vehicle’s starter unless a specifically programmed key is used. These keys contain a microchip, or transponder, that communicates with the car’s computer system. Even a correctly cut mechanical key will fail to start the engine if it lacks the programmed transponder chip.
The following Ford, Lincoln, and Mercury vehicles are commonly equipped with PATS, and the programming methods described below may apply to them. However, it’s always recommended to consult your owner’s manual or dealership to confirm compatibility for your specific year and model.
| Ford Contour ‘98–up | F-150 ‘98-up | Ford Crown Victoria ’97-up |
|---|---|---|
| Ford Escort 99-up | Ford Excursion ‘00-up | Ford Expedition ‘98–up |
| Ford Explorer ’98-up | Ford Focus ‘00-up | Ford Mustang ’96-up |
| Ford Ranger ’98-up | Ford Taurus ’96-up | Ford Windstar ’98-up |
| Lincoln Continental ’98-up | Lincoln LS ’00-up | Lincoln Mark VIII ’98-up |
| Lincoln Navigator ’98-up | Lincoln Town Car ’98-up | Mercury Grand Marquis ’97-up |
| Mercury Mountaineer ’98-up | Mercury Mystique ’98-up | Mercury Sable ’96-up |
Programming Methods for Ford Keys
There are different on-board programming methods for Ford keys, generally categorized by vehicle year. Below are two common methods, “B” and “C”. Always double-check your vehicle’s year and model against the method descriptions to ensure you are using the correct procedure.
Method “B” (for 1996 – Early 1998 Ford, Lincoln, Mercury)
This method is generally applicable to older Ford models from 1996 to early 1998.
Initiating a New Master Key (Method B – If you have no working key)
This procedure will erase all previously programmed keys and program a new master key. Use this method only if you do not have any existing working keys.
- Insert the new, unprogrammed key into the ignition cylinder and turn it to the ON (RUN) position.
- Observe the security light on the dashboard. It will begin to flash for fifteen minutes.
- Wait for the security light to stop flashing. Once it stops, you have a five-minute window to proceed to the next step.
- Turn the ignition cylinder OFF and then immediately back to the ON (RUN) position. The security light will flash again for fifteen more minutes.
- Wait for the security light to stop flashing again. You have another five-minute window. Turn the ignition cylinder OFF and then back to the ON (RUN) position for the third time. The security light will flash for a final fifteen minutes.
- After the security light stops flashing for the third time, the new key is programmed. It will now be the only key programmed to your vehicle, replacing all previous electronic key codes.
Adding a Key (Method B – If you have an existing working key)
This procedure allows you to add a new key while retaining your existing working keys.
- Insert an existing, working key into the ignition cylinder.
- Turn the ignition cylinder to ON (RUN) and then immediately back to OFF.
- Remove the existing key from the ignition.
- Within 15 seconds, insert the new, unprogrammed key into the ignition cylinder and turn it to ON (RUN).
- The security light on the dashboard will illuminate for two seconds to confirm successful programming of the new key.
- Wait at least one minute before attempting to start the vehicle with any key.
Method “C” (for Later 1998 – Newer Ford, Lincoln, Mercury)
Method “C” applies to Ford, Lincoln, and Mercury vehicles manufactured from late 1998 onwards. This method often requires having two existing, programmed keys to add a new one.
Initiating a New Master Key (Method C – Dealer Programming Required)
Initiating a new master key for newer models typically requires specialized dealer equipment. This process involves erasing all existing key programming and setting up the vehicle’s computer to accept new key codes. Dealerships use tools that bypass the standard programming limitations. If you have lost all your keys for a later model Ford, you will likely need to visit a dealership or a qualified locksmith.
Adding a Key (Method C – Requires Two Working Keys)
To add a key using Method “C”, you must have two previously programmed, working keys. If you only have one working key, dealer or locksmith programming will be necessary.
- Insert one existing, working key into the ignition cylinder.
- Turn the ignition cylinder to ON (RUN) and then back to OFF. Ensure the ignition stays in the ON position for at least one second.
- Remove the first key and, within ten seconds, insert the second working key into the ignition cylinder. Turn it to ON (RUN) and then back to OFF. Again, ensure the ignition is ON for at least one second but no more than ten seconds. Remove the second key.
- Within twenty seconds of removing the second key, insert the new, unprogrammed key into the ignition cylinder and turn it to ON (RUN). Leave it in the ON position for at least one second before turning back to OFF.
- The security light will illuminate for three seconds to indicate that the new key has been successfully programmed.
- To program additional keys, repeat steps 1 through 5.
- Wait at least one minute before attempting to start the vehicle.
Important Precautions
- Wait Time: After completing any of the programming procedures, it is crucial to wait at least one minute before attempting to start your vehicle with any key. This allows the system to fully recognize the newly programmed key.
- Compatibility: While these methods are widely applicable, they may not work for every Ford vehicle year and model. Always consult your owner’s manual or contact a Ford dealership to confirm the correct programming procedure for your specific car.
- Dealer Confirmation: If you are unsure about any step or if the programming fails, it is best to seek assistance from a Ford dealership or a qualified automotive locksmith.
By following these instructions carefully, you can potentially program a new Ford car key yourself, saving money and avoiding a trip to the dealership. However, always prioritize accuracy and safety, and don’t hesitate to seek professional help when needed.
