Lincoln Nautilus Key Fob Programming by Year
Can you program a Nautilus fob without the dealer? For most years, yes. Pick your year for the route and best next step.
Find your year
| Year | DIY onboard? | How it programs | Working fob? | Erase risk | Confidence | Best next step |
|---|---|---|---|---|---|---|
| 2019–2022 | Yes | Yes - onboard relearn | Yes (2 working) | Possible | Med | Follow the steps below |
| 2023–2026 | No | No - needs a programmer/tool | Yes (2 working) | Possible | Med | We bring the tool to you |
Lincoln Nautilus key types & programming facts
Lincoln states that Nautilus key systems can use an Intelligent Access Key with push-button start, and that key replacement/reprogramming depends on the vehicle’s key type and security system. For 2019-2021 Nautilus, a replacement smart key fob listing shows FCC ID M3N-A2C31243300 and indicates compatibility with factory-installed keyless entry smart-key systems, while another source identifies FCC ID M3N-A2C940780 for a 2019 Nautilus remote.
Key types used on the Nautilus:
- smart/proximity push-to-start (Intelligent Access Key) (2019-2026)
- smart key / integrated keyhead transmitter (2019-2026)
Common fob FCC IDs: M3N-A2C31243300, M3N-A2C940780 — check the back of your fob; we confirm the exact variant on site.
2019–2022 Lincoln Nautilus
Route verified — exact steps vary by trim/equipment
Route verified as onboard programming (no dealer needed). The sequences below are general route guidance — use them only if your vehicle shows the same prompts and controls. If the prompts don’t match, stop and call us.
Show the programming methods (17 steps)
Programming prerequisites
Step-by-step programming sequence (first programmed key)
Step-by-step programming sequence (second programmed key and new key)
Troubleshooting and additional links
For the 2019–2022 Nautilus: Nautilus key replacement & all compatible fobs →
2023–2026 Lincoln Nautilus
Professional programming required
Professional programming for the 2023–2026
This year needs a programmer/scan tool - there is no owner-followable onboard sequence. A mobile locksmith confirms your key type and FCC ID, then programs it on site.
For the 2023–2026 Nautilus: Nautilus key replacement & all compatible fobs →
How we validate this guide
Year coverage comes from our consolidated vehicle programming dataset. Route-level programming status is reviewed against internal route sheets and available manufacturer, security-access, and professional tool references. Exact button sequences are marked source-verified only when we have year/equipment-specific support; where a year is labeled “route verified, steps vary,” we confirm the exact fob, trim, and prompts before programming. Reviewed for route and safety by Mohammad H. Abdelhadi, ALOA-Certified Master Locksmith.
| Year | Route status | Exact steps |
|---|---|---|
| 2019–2022 | Route verified | General guidance |
| 2023–2026 | Route verified (tool) | Professional route |
Common questions
What key type does a Lincoln Nautilus use?
Lincoln describes the Nautilus key system as an Intelligent Access Key with push-button start; some Lincoln sources also use the term Smart Key / Integrated Keyhead Transmitter.
Are there FCC IDs available for Nautilus replacement remotes?
Yes for some 2019-2021 listings: M3N-A2C31243300 and M3N-A2C940780 are both cited for Nautilus-related remotes.
Does key programming require special equipment?
Lincoln says key replacement and reprogramming depends on the vehicle’s key type and security system; published sources for Nautilus also indicate certain remotes require professional programming or vehicle-based programming routes.
Can you program a Nautilus key fob without going to the dealership?
For most years, yes - the route is onboard relearn or an OBD tool, both of which a mobile locksmith handles at your location.
Does this program the remote only, or the transponder key too?
It depends on your key type. Tell us your FCC ID and we will confirm.
What if my year says professional programming required?
Those years need a programmer or security access; we bring the tool to you and program it on site.
How much does it cost?
It depends on year, key type, and whether you have a working key. Call (833) 439-8636 for a firm price before we dispatch.