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Subaru WRX Key Replacement
Subaru WRXs have been on Dallas–Fort Worth roads since the 2008 era, and across 2 key generations this model has used 2 different key systems — transponder / remote head; smart proximity (push-to-start). Whichever yours is, DFW Keys 4 Cars cuts and programs it at your location, 24/7: spare keys, lost-everything replacements, fob programming, and lockouts. Call (214) 717-6398.
About WRX Keys
The table below is our verified key reference for the Subaru WRX — model years, key types, and the transponder/immobilizer family each generation uses. Generations overlap at boundary years, and trim levels (keyed vs. push-to-start) can differ within the same year, so we always confirm the exact part by VIN before dispatching.
| Model / Generation | Years | Key Type | Transponder / Immobilizer | Blade / FCC |
|---|---|---|---|---|
| WRX / STI | 2008–2014 | Transponder / remote head | 4D62 (DST80) | DAT17 high-security |
| WRX / STI | 2015–2021 | Smart proximity (push-to-start) | DST-4D “G” board → 8A / DST-AES | DAT17 emergency insert (confirm by VIN) |
Security System & Immobilizer
Subaru moved through 4D62 and G-chip transponders to H-chip keys and proximity smart fobs on current models — all field-programmable with the right tools.
On the WRX specifically, the immobilizer families we see are: 4D62 (DST80), DST-4D “G” board → 8A / DST-AES. A key that is cut correctly but not programmed to this system will turn the locks and never start the engine — programming is the half of the job that matters.
Which key does your year have?
- 2008–2014: Transponder / remote head — 4D62 (DST80) (DAT17 high-security)
- 2015–2021: Smart proximity (push-to-start) — DST-4D “G” board → 8A / DST-AES (DAT17 emergency insert (confirm by VIN))
Our WRX Key Services
- Key replacement — lost, stolen or broken WRX keys cut from code and programmed on-site, including all-keys-lost by VIN
- Spare key duplication — the cheap insurance; most WRX spares are done in one short visit
- Fob & transponder programming — remotes, fobiks and smart keys paired to the immobilizer, including proximity fobs
- Lockout service — damage-free entry when the keys are inside, 24/7
- Ignition repair — worn cylinders and keys that won’t turn
Subaru WRX Key FAQ
I lost the only key to my WRX. 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 — this is our most common WRX call.
My WRX is push-to-start. Can you really program that outside the dealer?
Yes. Late-model WRXs (2015–2021) use a proximity smart key on the DST-4D “G” board → 8A / DST-AES system — our trucks carry the fobs and the programmer. We cut the emergency blade too.
How fast can you reach my WRX in DFW?
We dispatch the nearest mobile unit across the whole metroplex, 24/7. Call (214) 717-6398 with your location and we’ll give you an honest ETA.