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Subaru Ascent Key Replacement

Subaru Ascent keys date back to 2019 and span 1 key system across the model’s generations — smart proximity (push-to-start). 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 Ascent Keys

Verified key reference for the Subaru Ascent — 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
Ascent2019–2024Smart proximity (push-to-start)8A / DST-AESDAT17 emergency insert

Security System & Immobilizer

Subaru moved through 4D62 and G-chip transponders to H-chip keys and proximity smart fobs.

On the Ascent specifically we see: 8A / DST-AES. 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?

  • 2019–2024: Smart proximity (push-to-start) — 8A / DST-AES (DAT17 emergency insert)

Our Ascent Key Services


Subaru Ascent Key FAQ

I lost the only key to my Ascent. 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 Ascent is push-to-start — can you program that outside the dealer?

Yes. Late models (2019–2024) use a proximity smart key on 8A / DST-AES — we carry the fobs and the programmer, and we cut the emergency blade.

How fast can you reach my Ascent in DFW?

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