2018 Ford Transit Key Fob Programming Guide

As an ASE-certified electrical technician and professional locksmith, I’ve worked on countless commercial vans. The 2018 Ford Transit is a true workhorse, but losing a key or dealing with a broken fob can quickly bring your business to a halt. Ford utilizes a robust Passive Anti-Theft System (PATS) for these vans, meaning a simple metal key won’t start the engine. You need a properly cut and programmed transponder key.

Here is your comprehensive guide to understanding, buying, and programming a key fob for your 2018 Ford Transit.

Quick reference

Step-by-step on-board programming

To program a new key yourself for the 2018 Ford Transit, Ford’s PATS system requires that you already possess two working, original keys. If you only have one key, or have lost all your keys, on-board programming is locked out for security reasons. You will need a professional scan tool to bypass the security timer and add the key.

If you have two working keys and want to program a third (which I highly recommend doing as a backup), follow these steps:

1. Have your keys ready: Gather your two original, programmed keys and the new, unprogrammed key. The new key must already have the blade cut to match your locks.
2. Insert the first key: Put the first working key into the ignition cylinder.
3. Turn to ON: Turn the ignition from the OFF position to the ON position (do not crank the engine). Leave it in the ON position for at least three seconds, but no more than ten seconds.
4. Remove the first key: Turn the ignition back to OFF and remove the first working key.
5. Insert the second key: Within ten seconds, insert your second working key into the ignition.
6. Turn to ON: Turn the ignition to the ON position. Again, leave it ON for at least three seconds but no more than ten seconds.
7. Remove the second key: Turn the ignition to OFF and remove the second working key.
8. Insert the new key: Within ten seconds, insert the new, unprogrammed key into the ignition.
9. Turn to ON: Turn the ignition to the ON position. Keep it there for at least six seconds.
10. Test the key: Turn the ignition OFF. If the procedure was successful, the immobilizer light will go out, and your new key will now start the engine and operate the remote locks.

Note: If the immobilizer light flashes rapidly, the programming failed. Wait five minutes and try again from step 1.

Battery replacement

If your key still starts the van but the remote buttons have stopped working, you likely just need a new battery. The 2018 Ford Transit flip key uses a standard CR2032 coin-cell battery.

1. Flip the metal key blade out.
2. Look inside the slot where the key blade usually rests. You will see a small seam dividing the back cover from the main body.
3. Insert a flathead screwdriver into this slot and gently twist to pry the back cover off.
4. Remove the old CR2032 battery.
5. Insert the new battery with the positive (+) side facing up.
6. Snap the plastic back cover firmly into place and test your remote buttons.

Where to buy a replacement fob

When sourcing a replacement key for your Transit, you have a few options, each with different pros, cons, and price points.

• Dealership: Buying directly from a Ford dealer guarantees you get an OEM key (PN: 164-R8130). However, it is the most expensive route. Expect to pay between $150 and $250 for the part alone, plus another $100–$150 for cutting and programming.
• Local Automotive Locksmith: A mobile locksmith is usually the best middle-ground. They carry OEM-equivalent aftermarket keys, can laser-cut the HU101 blade on-site, and will handle the programming. Total cost is usually around $150 to $225, with the massive advantage of them coming directly to your van.
• Amazon / Online Retailers: You can find aftermarket flip keys online for $20 to $50. The catch: You still have to pay a locksmith to laser-cut the high-security blade and program it. Many locksmiths will not guarantee the quality of customer-supplied keys, as cheap transponder chips often fail during programming.

If on-board programming isn't supported

If you only have one working key, or have lost them all, you cannot use the DIY method described above. The 2018 Ford Transit uses a 128-bit Texas Crypto transponder (often referred to as Hitag Pro or similar advanced chips depending on the exact trim).

To add a key in an "All Keys Lost" or "One Key" scenario, a technician must connect a specialized OBD2 diagnostic scan tool to the van. The tool connects to Ford's security module, waits out a mandatory 10-minute security access timer, and electronically pairs the new transponder chip to the van’s computer.

Expect to pay a mobile locksmith between $180 and $300 for this service if you only have one key, and potentially upwards of $350+ if you have lost all keys, since they will also have to decode the door lock cylinder to generate the physical key cut from scratch.

Find a mobile locksmith or shop on Repairius.