Ford Mustang Key Replacement | Wilshire Lock & Key

Ford Mustang keys by year

Year	Key type	Chip	Push-to-start
2026	Smart / proximity key	varies — ask us	Yes
2025	Smart / proximity key	varies — ask us	Yes
2024	Smart / proximity key	varies — ask us	Yes
2023	Smart / proximity key	128-bit (Hitag Pro family) (unconfirmed)	Yes
2022	Smart / proximity key	128-bit (Hitag Pro family) (unconfirmed)	Yes
2021	Smart / proximity key	128-bit (Hitag Pro family) (unconfirmed)	Yes
2020	Smart / proximity key	128-bit (Hitag Pro family) (unconfirmed)	Yes
2019	Smart / proximity key	128-bit (Hitag Pro family) (unconfirmed)	Yes
2018	Smart / proximity key	128-bit (Hitag Pro family) (unconfirmed)	Yes
2017	Smart / proximity key	128-bit (Hitag Pro family) (unconfirmed)	Yes
2016	Smart / proximity key	128-bit (Hitag Pro family) (unconfirmed)	Yes
2015	Smart / proximity key	128-bit (Hitag Pro family) (unconfirmed)	Yes
2014	Remote-head key	4D63 (80-bit)	No
2013	Remote-head key	4D63 (80-bit)	No
2012	Remote-head key	4D63 (80-bit)	No
2011	Remote-head key	4D63 (80-bit)	No
2010	Remote-head key	4D63	No
2009	Transponder chip key	4D63	No
2008	Transponder chip key	4D63	No
2007	Transponder chip key	4D63	No
2006	Transponder chip key	4D63	No
2005	Transponder chip key	4D63	No
2004	Transponder chip key	4C	No
2003	Transponder chip key	4C	No
2002	Transponder chip key	4C	No
2001	Transponder chip key	4C	No
2000	Transponder chip key	4C	No

Which Mustang key do you actually have?

The Mustang has been on sale for a long time, and the key in your hand depends almost entirely on the model year. We split the cars into four generations: the SN95 'New Edge' (1999–2004), the S197 (2005–2014), the S550 (2015–2023) and the S650 (2024–2026). Each one has a different key, a different programming picture and a different list of things that tend to go wrong.

The year-by-year table on this page shows the key type and chip family for each model year. The text around it explains what those entries mean for you in practice. Where our information is verified, we say so. Where it is unverified or conflicting, we say that too, and we confirm the exact setup by VIN before cutting or programming anything. For the wider picture on the brand, see our Ford key replacement page. For other makes, start at car keys.

What does a 1999–2004 SN95 Mustang need?

These cars use a Texas 4C transponder chip in an H72-family key. Our year-by-year data starts at 2000, so for a 1999 car we treat the generation note as our guide and confirm by VIN. Every year from 2000 to 2004 is verified in our data as a plain transponder key with no push-button start, a mechanical backup key, and OBD programming that does not call for NASTF credentials. Fitment lists for the H72-family key cover 1996–2004 Mustangs, but we go by your VIN, not a list.

What owners of these cars usually need is a working spare, because the original key's blade is often worn. The data points to worn 8-cut key blades that stop turning the locks, and to worn ignition lock wafers on high-mileage cars, where the key sticks or will not turn. Sometimes the key is not the problem at all and the lock is. We look at that before we sell you a new key.

One more thing worth saying: a hardware-store copy cut without a transponder will open the doors and then refuse to start the engine. If someone cut you a blade-only copy, the car is telling you it wants a chip.

What about the 2005–2014 S197 cars, including the odd 2010 year?

The S197 moves to the Texas 4D63 chip. In 2005–2009 that is the 40-bit era, and those years are verified in our data as transponder keys with OBD programming. Dual-mode 40/80-bit aftermarket chips cover them. The onboard add-a-key procedure also works if you still have two working keys, which can make adding a third simpler than a full programming session.

From 2011 to 2014 the Mustang uses an 80-bit 4D63 remote-head key, where the blade and the remote share one head. Fitment for the CWTWB1U793-type key is confirmed for 2011–2014 in our data, and those years are verified.

2010 is the boundary year, and our data marks it as conflicting. The 80-bit remote-head keys list 2010–2014 fitment even though they are described as designed for 2011 and newer. The chip family on record for 2010 is 4D63. Rather than guess, we use dual-mode chips that cover either version and we test the chip before cutting a blade. If you own a 2010, give us the VIN and we will confirm the exact setup before we tell you what the job involves.

Owners of these years most often need a duplicate while a key still works, or a repair for a cracked remote-head shell or a remote with worn buttons.

Locked out or need a locksmith now?

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

Call (213) 577-1366

How do the 2015–2023 S550 smart fobs work?

The 2015 redesign brought push-button start and Intelligent Access as standard equipment, which is confirmed in Ford's launch material and press coverage. The key is a smart proximity fob with a hidden emergency blade inside it. Our era knowledge puts the fob in the 128-bit Hitag Pro family, but we have not verified the chip family, so we treat that as a working assumption and confirm by VIN.

For 2015–2020, our data lists OBD programming with no NASTF credentials flagged, and all-keys-lost as possible. Proximity all-keys-lost can require an active-alarm adapter, which is extra equipment and extra work, not a quick step.

For 2021–2023, the final S550 years, the programming method in our data is unknown and all-keys-lost is not confirmed either way. NASTF's own guidance says that PATS functions through Ford's FDRS/FJDS tools with a non-dealer login require NASTF VSP credentials or an OEM-assisted immobilizer request. Aftermarket tool coverage for those years varies, so we check current coverage before quoting and say plainly if a job is dealer-or-VSP-only.

Can you handle the newest 2024–2026 S650 Mustangs?

This is the new generation, and push-button start is standard. Fob and chip details are not verified in our data, and aftermarket programming support is still maturing, particularly for all-keys-lost. We would rather tell you that than pretend otherwise.

The practical difference is large. If you have a working fob and want a spare, that is a different question from having lost every fob. The same NASTF note applies here. Call with your VIN, we check current tool coverage, and we tell you whether it is something we can do or whether the dealer is the right place to go.

Duplicate key or all keys lost: what changes by era?

A duplicate starts from a working key, and our data says an original key is needed for copying on every Mustang year. That is the lighter-cost route in every era, so if you only have one key left, copying it now is usually the more economical move.

All keys lost is a bigger job. Our data lists it as possible for every Mustang from 2000 through 2020. For 2021 and newer it is not confirmed either way, and we verify current tool coverage first. Roughly, this is how it goes:

You give us the year and VIN, and tell us where the car is and whether any key or fob is left, even a broken one.
We confirm the key type and chip family for your exact car, including the 2010 boundary and any unverified year.
We tell you whether the job is a mobile van job, a storefront job, or something that has to go through the dealer or a VSP-credentialed route.
We cut the blade where one is needed, program the key or fob, and test it on the ignition, doors and remote functions before we leave.

Locked out or need a locksmith now?

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

Call (213) 577-1366

Is Mustang key programming really done through the OBD port?

For 2000 through 2020, yes. Our data lists OBD programming for those years, and none of them is flagged as requiring NASTF SDRM credentials. That is why most of these cars are routine for a mobile van.

For 2021 through 2026 the programming method in our data is unknown, and we do not make it up. NASTF guidance says that Ford PATS functions with a non-dealer login need VSP credentials or an OEM-assisted request. Some newer jobs may be possible with aftermarket tools, and some may be dealer-or-VSP-only. We check before quoting, and if it comes down to the dealer, we say so up front rather than after you have waited.

What commonly goes wrong with Mustang keys?

Our data lists problems by era, and they are different enough that the era tells you where to look first.

The problems for each era are:

2000–2009: worn ignition lock wafers on high-mileage cars, worn 8-cut blades, and the PATS theft light flashing when the chip is not read, so the engine cranks but will not start.
2000–2009: hardware-store copies cut without a transponder, which open the doors but will not start the engine.
2010–2014: cracked remote-head key shells, worn buttons and failed key or remote batteries, plus the same PATS flashing-light symptom and worn lock wafers on high-mileage cars.
2015–2026: dead smart-fob batteries that give a 'No key detected' message while the hidden emergency blade still opens the door.
2015–2026: water-damaged or crushed fobs, and the plain fact that a lost-fob replacement costs more than an older bladed key.

What affects the cost of a Mustang key replacement?

We do not quote numbers on a web page, because the same Mustang can be a very different job depending on a few things:

The key type: a transponder blade, a remote-head key or a push-button smart fob are three different levels of hardware.
The generation and year, including whether we are in a verified, conflicting or unverified year.
Whether you have a working key to copy or all keys are lost.
Whether an active-alarm adapter or other extra equipment is needed for a proximity all-keys-lost job.
Whether the job can be done on-site or must go through dealer or VSP-credentialed channels.
Whether the problem is the key at all: a fob battery, a cracked shell or a worn lock can cost less than a full replacement.

When should you call us, and when is the dealer the better call?

Call us when you want a straight answer on your specific car and a key made where the car sits, whether that is at home, at work or in a parking lot. We are one company, so the person who answers the phone is not a dispatch middleman who passes the job to a stranger. We have been in business since 1987, with a storefront at 10740 Wilshire Blvd in Westwood plus mobile service vans, and David, the owner and lead technician, oversees the work. We serve 140 cities across Los Angeles and Ventura counties, and the phone at (213) 577-1366 is answered 24 hours a day, every day of the year.

The dealer can be the better call on some 2021-and-newer cars, where the job may require VSP credentials or an OEM-assisted request that aftermarket tools do not reach. We will tell you if yours is one of those. Whoever you choose, ask for their BSIS LCO license number. California requires locksmith companies to hold that license, and any legitimate company will give it to you.

Ready to start? Have your year and VIN handy and contact us, or go to the Wilshire Lock & Key home page to see everything else we do.

Frequently asked questions

Can you make a Mustang key if I have lost every key?

For 2000 through 2020, our data lists all-keys-lost as possible with OBD programming. For 2021 and newer it is not confirmed either way, so we check current tool coverage by VIN first. On smart-fob cars, an active-alarm adapter may be needed.

Do I have to go to the dealer for a 2021 or newer Mustang key?

Not automatically. NASTF guidance says that Ford PATS functions with a non-dealer login need VSP credentials or an OEM-assisted request, and aftermarket coverage varies by year. We check current coverage before quoting, and we tell you plainly if it is dealer-or-VSP-only.

Will a hardware-store copy start my Mustang?

Not on 2000–2014 cars, which use transponder chips. A blade cut without a chip will open the doors, but the engine will not start, and the PATS theft light may flash. You need a key with the correct chip, programmed to the car.

My 2018 Mustang says 'No key detected'. Do I need a new fob?

Often it is just a dead fob battery. The hidden emergency blade inside the fob still opens the door, so you can get in. If a new battery does not fix it, the fob may be water-damaged or crushed, and we can look at that.

Which key does a 2010 Mustang use?

2010 is the boundary year, and our data marks it as conflicting. The chip on record is 4D63, but the 80-bit remote-head keys list 2010–2014 fitment even though they are designed for 2011 and newer. We use dual-mode chips and test the chip before cutting.

Can I add a key myself on a 2005–2009 Mustang?

Our data says the onboard add-a-key procedure works on these cars if you have two working keys. If you only have one working key or none, you need programming through the OBD port, and we can do that.

Do you come to me for Mustang keys?

Yes. We run mobile service vans as well as a storefront at 10740 Wilshire Blvd in Westwood, and we serve 140 cities across Los Angeles and Ventura counties. Some newer cars may need dealer or VSP channels, and we tell you that up front.

How much will my Mustang key cost?

It depends on the key type, the year, whether you have a working key to copy, and whether extra equipment such as an alarm adapter is needed. Smart fobs cost more than older bladed keys. Give us your VIN and we can explain what applies to your car.

What should I ask any locksmith before they work on my car?

Ask for their BSIS LCO license number. California requires locksmith companies to hold that license. Also ask whether they have confirmed coverage for your exact year and VIN, especially on 2021 and newer Mustangs.

We cover all these cities

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

Last updated 2026-10-11.