2018 Ford Expedition Key Replacement

The 2018–2020 Expedition uses the same key setup, so everything on this page applies to those years too. The full picture is on the Ford Expedition key guide.

2018 Ford Expedition: key facts

Key type: Smart / proximity key
Push-to-start: Yes
Transponder chip: Varies by trim — we confirm by VIN
Programming: OBD
All keys lost: We can originate new keys on site

Fourth generation: push-button start with a smart proximity fob standard (our era knowledge — not verified this session). Proximity all-keys-lost can require an active-alarm adapter.

What kind of key does a 2018 Expedition use?

The 2018 Expedition is a smart-key truck. There is no traditional key to turn. You carry a proximity fob, the truck senses it nearby, and you start the engine with the push button. The fob also holds a mechanical backup key, a small emergency blade hidden inside the housing, which is meant for opening the door when the fob itself isn't working.

For an owner, that setup brings a few practical things to know. A fob like this is a small computer and a radio, not just a cut piece of metal, so a replacement has to be programmed to your truck. A hardware-store copy won't do it. The blade by itself will open a door, but it will not start the truck.

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

A dead fob battery, where the dash says 'No key detected' even though the fob is in your pocket. The hidden blade will still open the door.
Water-damaged fobs, from pockets, pools, and washing machines.
Crushed or cracked fobs, usually from being sat on or dropped.
Sticker shock on a lost fob, since a smart fob costs more to replace than an older bladed key.

Spare copy or all keys lost: what changes?

Both situations are possible on this truck. If you still have a working fob, we can make an additional one from it. That is the easier and usually more economical route, and it is the best reason not to wait until you are down to one fob. The data for this year says an original key is needed for duplication, so having a working fob in hand matters.

If every fob is gone, an all-keys-lost replacement is still possible. It takes more steps, because there is no working fob for the truck to recognize. Proximity systems like this can sometimes call for an active-alarm adapter during an all-keys-lost job, so we plan for that and don't improvise on the spot. Programming is done through the OBD port, and for this year the data shows no NASTF SDRM secure-access requirement.

You call (213) 577-1366 and tell us the year, model, and whether you have any working fob.
We confirm the key details for your truck by VIN before we quote the job.
We come to you with a mobile van, or you bring the truck to our Westwood storefront at 10740 Wilshire Blvd.
We cut or prepare the emergency blade as needed and program the new fob through the OBD port.
We test every fob you leave with, including push-button start, lock and unlock, and the hidden blade in the door.

Locked out or need a locksmith now?

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

Call (213) 577-1366

What affects the price of a 2018 Expedition key?

We don't quote numbers on a web page, because the real figure depends on your situation. Here is what actually moves the cost:

Whether you have a working fob to copy or are in an all-keys-lost situation. All keys lost involves more work.
Whether an active-alarm adapter is needed to get into the system on a proximity truck.
Whether the job is at our storefront or a mobile call, and where you are.
Whether you only need a battery, a shell, or a full new fob. A dead battery that reads 'No key detected' is a much lighter fix than a replacement.
How many fobs you want programmed during the same visit.

What we haven't verified, and how we handle it

Honesty matters here. For this year, the chip family is listed as a 128-bit Hitag Pro type, but that detail is not verified against a source, and the generation and fob details are our general knowledge of this era, not confirmed for your particular truck. Trim level, build date, and the exact fob design can all vary.

So we don't guess. When you call, we confirm the fob and programming requirements by VIN, and in person when we see the truck. If something turns out different from what is listed, we'll tell you plainly before any work starts.

Why call Wilshire Lock & Key

We have been in business since 1987, with a storefront in Westwood and mobile service vans. You deal with one company, with no dispatch middleman passing your job to a stranger. David, the owner and lead technician, oversees the work. Phones are answered 24 hours a day, 7 days a week, year-round. California requires locksmith companies to hold a BSIS LCO license, and you should ask any locksmith for it before they start.

For the wider picture, see our Ford Expedition key pages, the Ford key overview, or all car key services. If you'd rather write than call, use our contact page.

Frequently asked questions

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

Not necessarily. A dead battery is a common cause on smart fobs, and the hidden emergency blade will still open the door. Try a fresh battery first. If the message continues, the fob may be damaged or need reprogramming, and we can look at it.

Can you make a key if I've lost every fob?

Yes. All keys lost is possible for this truck. It involves more steps than copying a working fob, and proximity systems can require an active-alarm adapter, so we plan for that.

Is it cheaper to copy a working fob than to replace a lost one?

Usually yes. Copying from a working fob is typically the more economical route. Original-key duplication needs that working fob, which is why we suggest getting a spare before you lose the last one.

How is a 2018 Expedition fob programmed?

Through the OBD port. For this year, the data shows no NASTF SDRM secure-access requirement. We still confirm everything by VIN first.

Does the hidden blade start the truck?

No. The mechanical backup blade is for the door. Starting the truck relies on the programmed proximity fob and the push button.

Will you come to me, or do I need to bring the truck in?

Either works. We run mobile vans and have a storefront at 10740 Wilshire Blvd, Los Angeles, CA 90024. Call (213) 577-1366 and we'll work out which fits your situation.

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.