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Lexus RC Key Replacement

Lexus RC keys date back to 2015 and span 1 key system across the model’s generations — smart access proximity (push-button). 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 RC Keys

Verified key reference for the Lexus RC — 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
RC2015–2020Smart Access proximity (push-button)Texas DST-AES 128-bit (“H”, Page1 39)TOY48 (insert)

Security System & Immobilizer

Lexus shares Toyota’s immobilizer lineage — 4C, 4D67, G and H transponder eras — topped by Smart Access proximity fobs on push-to-start models.

On the RC specifically we see: Texas DST-AES 128-bit (“H”, Page1 39). 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: Smart Access proximity (push-button) — Texas DST-AES 128-bit (“H”, Page1 39) (TOY48 (insert))

Our RC Key Services


Lexus RC Key FAQ

I lost the only key to my RC. 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.

My RC is push-to-start — can you program that outside the dealer?

Yes. Late models (2015–2020) use a proximity smart key on Texas DST-AES 128-bit (“H”, Page1 39) — we carry the fobs and the programmer, and we cut the emergency blade.

How fast can you reach my RC in DFW?

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