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Alfa Romeo 4C Key Replacement

Alfa Romeo 4C keys date back to 2015 and span 1 key system across the model’s generations — flip / transponder remote. DFW Keys 4 Cars cuts and programs every one of them at your location anywhere in Dallas–Fort Worth, 24/7 — spares, all-keys-lost, fobs and lockouts. Call (214) 717-6398.


About 4C Keys

Verified key reference for the Alfa Romeo 4C — model years, key types, and the transponder/immobilizer each generation uses. Boundary years can overlap; we confirm the exact part by VIN before dispatching.

Model / GenerationYearsKey TypeTransponder / ImmobilizerBlade / FCC
4C2015–2020Flip / transponder remoteHitag AES / ID4Aconfirm by VIN

Security System & Immobilizer

Modern US-market Alfas (4C, Giulia, Stelvio) use FCA-era electronics with Megamos/Hitag-family chips — programmable with professional FCA/Alfa-capable equipment despite the exotic badge.

On the 4C specifically we see: Hitag AES / ID4A. A correctly cut but unprogrammed key turns the locks and never starts the engine — programming is the half of the job that matters.

Which key does your year have?

  • 2015–2020: Flip / transponder remote — Hitag AES / ID4A (confirm by VIN)

Our 4C Key Services


Alfa Romeo 4C Key FAQ

I lost the only key to my 4C. What now?

We come to the vehicle, verify ownership, cut a new key from the VIN, and program it on-site — no tow, no dealer wait.

Will a hardware-store copy start my 4C?

On transponder-era cars it opens doors and nothing else — the chip must be programmed to the immobilizer, which is what we do curbside.

How fast can you reach my 4C in DFW?

We dispatch the nearest mobile unit metroplex-wide, 24/7 — call (214) 717-6398 for an honest ETA.