2010 Ford Fusion Key Replacement

The 2010–2012 Fusion uses the same key setup, so everything on this page applies to those years too. The full picture is on the Ford Fusion key guide.

2010 Ford Fusion: key facts

Key type: Remote-head key
Push-to-start: No
Transponder chip: 4D63
Programming: OBD
All keys lost: We can originate new keys on site

Refresh moved to a remote-head key, still 4D63; catalogs disagree on 40- vs 80-bit for these years, and dual-mode chips cover either.

What kind of key does a 2010 Ford Fusion use?

The 2010 model year is when the Fusion moved to a remote-head key. The lock buttons are built into the head of the key itself, so there is no separate fob to carry. Under the plastic is a 4D63 transponder chip, and that chip is verified for this year from the hardware suppliers we cross-check against. There is no push-to-start system on this car. You turn a physical key in the ignition.

For an owner, that setup has a few practical consequences. The key has to be cut to fit your ignition and the chip has to be programmed to the car, so a hardware-store copy will open the door but will not start the engine. The remote buttons are programmed separately from the chip. The good news is that programming on this car is done through the OBD port, and it does not require NASTF SDRM secure-system access. That keeps the work within what a mobile locksmith can do at your car. This car also has a mechanical backup key available, which matters if the remote head fails.

The problems we hear about most on this year are predictable:

Cracked remote-head key shells and worn buttons, since the key takes daily abuse on a keyring
Dead key or remote batteries
The PATS theft light flashing, where the engine cranks but will not start because the chip is not being read
Worn ignition lock wafers on high-mileage cars, which can make a good key feel sticky or refuse to turn

Duplicate key or all keys lost: how does it differ?

For this Fusion, making a duplicate requires an original key to work from. If you still have one working key, a spare is the more economical route: we cut the blade, program the chip, and pair the remote buttons. Do it before the last key goes missing.

If every key is gone, that is still workable. All-keys-lost is possible on this model year. We cut a key from the lock or the vehicle information, then program a new one through the OBD port. It takes more steps than a copy, which is why it costs more, but you do not need a tow to a dealer just because the keys are lost.

Here is how a typical job runs:

You call (213) 577-1366 and tell us the year, model, and whether you have any working key.
We confirm the details by VIN, including which chip type applies to your car.
A technician comes to you in a mobile van, or you visit our Westwood storefront at 10740 Wilshire Blvd.
We cut the key, program the transponder through the OBD port, and pair the remote buttons.
We test the key in the door and ignition, and start the engine before you pay.

Locked out or need a locksmith now?

We answer around the clock, every day of the year.

Call (213) 577-1366

What affects the cost of a 2010 Fusion key?

We do not quote numbers on a web page, because the honest answer depends on your situation. These are the factors that actually move the cost:

Whether you have a working original key. A copy is usually the more economical route compared with all keys lost.
Whether you need the remote buttons programmed as well as the chip.
The condition of the key you already have. A cracked shell on a working key may only need a new shell rather than a whole new key.
Whether the ignition lock is worn. On high-mileage cars the wafers may need attention before any key will behave well.
Where you are. A mobile visit to your location differs from bringing the car or key to the storefront.
The number of keys you want made in a single visit.

What do we confirm by VIN on this year?

One detail is genuinely unsettled. The chip family is 4D63 for these years, but parts catalogs disagree on whether it is the 40-bit or 80-bit version. Rather than guess, we confirm by VIN and in person with your car. We use dual-mode chips, which cover either version, so the disagreement does not leave you with a key that fails to start the car.

If you have a flashing PATS light, tell us when you call. It often points to a chip that is not being read, which could be a key problem or something else, and we would rather check it on the car than assume.

Why call Wilshire Lock & Key?

We have been in business since 1987, with a storefront in Westwood and mobile vans that serve 140 cities across Los Angeles and Ventura counties. You reach one company, not a dispatch middleman who sells your job to whoever is free. David, the owner and lead technician, oversees the work. Our phone is answered 24 hours a day, every day of the year.

California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith for it before they start work. For other Ford models, see our Ford key replacement page or the broader Fusion page. If you want to start with a message, use our contact page. A full list of makes is on our car keys hub.

Frequently asked questions

Is the 2010 Ford Fusion push-to-start?

No. The 2010 Fusion uses a remote-head key that you turn in the ignition. It has a 4D63 transponder chip inside the head.

Can you make a key if I lost all my 2010 Fusion keys?

Yes. All-keys-lost is possible for this model year. We cut a new key and program it through the OBD port, and we confirm the chip details by VIN first.

Do I need my original key to get a copy?

For this Fusion, duplication needs an original key to work from. If you have one working key, make the spare now. It is usually the more economical route than waiting until all keys are lost.

Does my Fusion need dealer-only programming?

No. Programming on this year is done through the OBD port and does not require NASTF SDRM access, so we can do it ourselves at your car or at the storefront.

Why does my Fusion crank but not start, with a flashing light?

A flashing PATS theft light with an engine that cranks but will not start usually means the car is not reading the chip in the key. It can come from a key problem or other causes, so we check it on the car before replacing anything.

Is the chip 40-bit or 80-bit?

The chip family is 4D63, but catalogs disagree on the bit size for these years. We confirm by VIN and use dual-mode chips that cover either version.

My key shell cracked and the buttons are worn. Do I need a whole new key?

Not always. If the key still works, the shell may be the only thing that needs replacing. We look at the key first and tell you what it actually needs.

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Reviewed by David, Owner & Lead Technician, Wilshire Lock & Key — in the locksmith trade since 1987.

Last updated 2026-10-11.