Ford Motion Sense Keys: What Locksmiths Need to Know

Posted by Ryan Barbin, AKS on Oct 19th 2026

As vehicle security evolves, so does the technology behind modern keys — and lately, Motion Sense proximity keys from Ford have been causing a wave of questions in the locksmith world. We’ve seen confusion around part numbers, compatibility, and whether these new keys change how you program or service certain vehicles.

So let’s break it down clearly, simply, and accurately — because at American Key Supply, we’re here to help locksmiths stay ahead of the curve.

What is “Motion Sense”?

Ford introduced Motion Sense technology as an anti-theft upgrade for proximity-style key fobs. Normally, proximity vehicles constantly ask:

“Is my key nearby? And if so… what’s the password?”

And the key fob normally always responds:

“Yep, I’m right here — here’s the password!”

That constant handshake is what lets you unlock the car by walking up to it or pressing the driver door button while the key is in range.

The Problem: Thieves have used relay attacks to capture and amplify that password. They don’t need your key — just the signal it’s constantly emitting.

The Solution: Motion Sense

Motion Sense keys stop broadcasting after 45 seconds of no movement.
If the key isn’t being touched, moved, or jostled, it goes quiet — making relay attacks dramatically harder.

Ford explains it here:
? https://www.ford.co.uk/support/how-tos/keys-and-locks/door-locks-and-alarms/how-does-the-motion-sensing-key-fob-work

Where Locksmiths Are Getting Confused

As new vehicles roll out — like the 2025 Ford Maverick — OEM parts sites now list Motion Sense versions of existing proximity keys.

The issue?

Ford previously sold the same-looking key without Motion Sense.
Now there are two different part numbers, and that leads many locksmiths to believe:

They require different programming
They are not interchangeable
Vehicles can only use the Motion Sense version
Older non-motion sense keys won’t work

Let’s clear that up.

In most cases Motion-Sense keys will program and function exactly like standard proximity keys — but always test before guaranteeing compatibility. Be aware that because of the sleep/wake behavior, some accessories or functions (like passive proximity entry) may behave differently unless the fob is activated properly.

In other words: treat Motion Sense as an upgrade / feature, not a guarantee — and always program & test keys as a locksmith would any other key.

Why Parts Sites Make This Confusing

When locksmiths look up a key for a specific Year/Make/Model, we rely heavily on OEM parts data — it’s the most accurate source we have short of hands-on testing.

When Ford updates a vehicle line with a Motion Sense key, the parts catalog updates too.
But that doesn’t mean the older key is no longer any good. In fact, Motion Sense keys are often backwards compatible and both the older keys and the Motion Sense keys will work for most older vehicles without Motion Sense technology.

However, newer cars that come standard with Motion Sense technology, will require Motion Sense keys—as they are not cross-compatible. This is often debated on various sites, with different user reports suggesting otherwise—further causing confusion. But the truth is that with newer vehicles that come with Motion Sense Technology as standard—the Motion Sense Keys are REQUIRED.

So What Should Locksmiths Stock?

If you want to simplify inventory:

Option 1: Stock Motion Sense Keys Only

They program the same, perform the same, and give the customer extra anti-theft protection.

Option 2: Stock Both

Some customers specifically want the cheaper or “non-smart” version.
Some want the upgraded security. And newer vehicles may come standard with this technology—requiring these specific keys.

What Does This Mean for Your Business?

Here’s the takeaway:

? Motion Sense does NOT change programming.

? Motion Sense is a new key feature, that may be REQUIRED for many new vehicles.

? Motion Sense keys are backwards compatible and can be used on older vehicles.

? Ford’s catalog causes confusion — we’re clearing it up.

This is the type of information locksmiths need, because it helps you avoid over-buying, misidentifying part numbers, or thinking you’ve got the “wrong” key in hand.

And you can count on us to keep you informed whenever the OEM world throws another curveball.

Need Ford proximity keys, including Motion Sense versions?

American Key Supply has them — clearly labeled, cross-referenced, and backed by our support team.

Because when OEM changes the game, AKS makes sure you stay ahead of it.

—Ryan Barbin, AKS