Ford Key Replacement
Ford key replacement in the Hudson Valley — the spare-key procedure you can do yourself, when you can’t, and why the 2011 blank change matters.
Call or text with these and we’ll take it from there
- Year, make and modelIt decides the key and the equipment.
- Any working key?Adding a spare and starting from none are different jobs.
- Where the vehicle isDriveway, lot, roadside — and whether it can be driven.
We come to you
Driveway, lot or roadside
Call or text
Same number, either way
Ownership checked
ID and paperwork, every job
Keys, fobs & remotes
Every kind, one call
If you have two working Ford keys, you may be able to program a third yourself, without a tool and without paying anyone. Ford documents the procedure. It’s worth ten minutes before you call us.
You may be able to do this yourself
Ford is unusual here. Its own published instructions describe an owner procedure for adding a spare key, and the requirement is specific: you need two keys that are already programmed, plus the new unprogrammed key.
The manual states it directly — you must have two previously programmed coded keys and the new key readily accessible. The procedure runs through presenting the first programmed key, then the second, then the new one.
It’s model-dependent. Ford notes the number of spare keys you can program depends on your vehicle’s model and year, and the current published DIY path applies to Intelligent Access and smart-key vehicles. Your owner’s manual for your specific vehicle is the place to confirm it.
But if you have two working keys and you’re reading this page because you want a third, try that first.
When it needs equipment
Ford’s own guidance draws the line clearly: if two previously programmed keys aren’t available, it goes to a dealer or someone with equivalent equipment.
One working key isn’t enough. Zero is definitely not enough. That’s the threshold, and it’s the reason a spare made while things are calm is so much cheaper than a key made after a loss.
Ford’s system is called SecuriLock, also known as PATS — the Passive Anti-Theft System. Transponder keys arrived on Ford’s US vehicles in 1996, and for the first couple of years everything could be done onboard. From 1998 onward, programming equipment became necessary for almost all key work.
The security function has moved around the vehicle over the years — from the powertrain module, to the instrument cluster, to the body control module on current vehicles. We’re not going to assign model years to those stages, because the public documentation describes them by network generation rather than by year, and guessing would be worse than saying so.
Need a key sorted? Call or text — same number.
The 2011 change that catches people out
Ford switched transponder encryption partway through its range, and the compatibility runs one way only.
Vehicles from model year 2010 and earlier generally use 40-bit transponders.
Vehicles from model year 2011 onward — Ford, Lincoln and Mercury — use 80-bit.
Here’s the asymmetry: an 80-bit blank works on a 40-bit vehicle. A 40-bit blank does not work on an 80-bit vehicle.
Which means if someone buys a cheap blank online for a 2013 Ford and it’s the older generation, it will not program. Not “might not” — the encryption doesn’t match. It’s one of the most common reasons a self-sourced Ford key fails, and it’s invisible until the programming step.
If you’re buying your own blank, that’s the specification to check.
If every Ford key is lost
This is where Ford’s documentation is explicit, and it changes what you should bring.
With no working key available, the procedure is to erase the key codes from the vehicle and program new coded keys. Existing codes are wiped, and every key you want working afterwards has to be programmed fresh.
So any key that isn’t present when that happens stops working. Bring every Ford key you own — including the one that’s become unreliable, including the one you assume is dead.
That erase-and-reprogram step is also why all-keys-lost is a substantially larger job than adding a spare with two keys in hand. Different work, not more of the same.
When it won’t start and the key isn’t the problem
Two documented causes worth checking before assuming a fault.
Something else on the keyring. Ford’s manual notes that metallic objects, electronic devices, or a second coded key on the same keychain can interfere with the read, especially when close to the key at startup. If your Ford has become intermittent about starting, try it with the key on its own. That’s a free fix and it’s in Ford’s own documentation.
Aftermarket remote start. Ford states its system isn’t compatible with non-Ford aftermarket remote start, and that fitting one may cause starting problems and a loss of security protection. If one was installed and starting problems followed, they may be related.
If a correctly coded key still won’t start the vehicle, that points at a system fault rather than the key — see how car immobilizers work.
What we do on site. We cut and program Ford keys, fobs and Intelligent Access smart keys at the vehicle, including all-keys-lost. A few 2021-and-later models are slower to program, but they’re still done on site.
What to have ready
- Model year and model — this settles the 40-bit versus 80-bit question
- How many working keys you have — two is the threshold that changes everything
- Every Ford key you own
- Whether an aftermarket remote start has been fitted
- Proof of ownership — registration or title, and matching photo ID
What it costs
Adding a spare when you have two working keys is the cheapest version and you may not need anyone. All-keys-lost is the most involved. What determines car key replacement cost covers what moves it.
Fob just stopped working? It may only be the battery.
Key fob battery guideFrequently asked questions
Can I program a Ford key myself?
Often yes, if you already have two programmed keys plus the new one. Ford publishes the procedure. It’s model-dependent, so check your owner’s manual for your vehicle.
What if I only have one working Ford key?
Ford’s guidance is that if two previously programmed keys aren’t available, the key needs to be programmed by a dealer or someone with equivalent equipment.
Will my other Ford keys still work after an all-keys-lost job?
No. Ford’s procedure erases the key codes from the vehicle and programs new ones, so every key has to be present and reprogrammed. Bring them all.
Why won’t my new Ford key program?
A common cause is the wrong transponder generation. Model year 2010 and earlier is generally 40-bit; 2011 onward is 80-bit. An 80-bit blank works on older vehicles, but a 40-bit blank will not work on a 2011-or-newer Ford.
My Ford starts sometimes and not others.
Try the key on its own, off the keyring. Ford’s manual notes that metallic objects, electronics, or a second coded key nearby can interfere with the read at startup.
What is SecuriLock?
Ford’s name for its immobilizer, also called PATS — the Passive Anti-Theft System. It’s been on Ford’s US vehicles since 1996 and prevents the engine starting without a correctly coded key.
Can I get a Ford key made from the VIN?
The VIN identifies which key your Ford takes, but the code isn’t published — it’s released through a vetted manufacturer registry to credentialed locksmiths and dealers, which is why you’re asked to prove ownership. With no original key it’s an all-keys-lost job: the vehicle’s key codes are erased and new keys programmed, so bring every Ford key you have.
Locked out or lost your key? Call The Fobfather