- (214) 717-6398
- info@dfwkeys4cars.com
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Chevy Sonic Key Replacement
Chevy Sonic keys date back to 2012 and span 2 key systems across the model’s generations — transponder; smart-proximity. 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 Sonic Keys
Verified key reference for the Chevy Sonic — 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 / Generation | Years | Key Type | Transponder / Immobilizer | Blade / FCC |
|---|---|---|---|---|
| Sonic | 2012–2018 | transponder | Hitag2 Extended / ID46E / PCF7937E, NCF2951E | B119 / HU100 |
| Sonic | 2017–2020 | smart-proximity | Hitag2 Extended / ID46E / NXP PCF7952E, PCF7941E | HU100 emergency insert |
Security System & Immobilizer
GM security moved from VATS resistor keys through PassLock to PK3/PK3+ transponders, the ID46 “Circle+” era, and today’s proximity fobs.
On the Sonic specifically we see: Hitag2 Extended / ID46E / PCF7937E, NCF2951E, Hitag2 Extended / ID46E / NXP PCF7952E, PCF7941E. 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?
- 2012–2018: transponder — Hitag2 Extended / ID46E / PCF7937E, NCF2951E (B119 / HU100)
- 2017–2020: smart-proximity — Hitag2 Extended / ID46E / NXP PCF7952E, PCF7941E (HU100 emergency insert)
Our Sonic Key Services
- Key replacement — lost, stolen or broken keys cut from code and programmed on-site, including all-keys-lost by VIN
- Spare key duplication — cheap insurance done in one short visit
- Fob & transponder programming — remotes and smart keys paired to the immobilizer
- Lockout service — damage-free entry, 24/7
- Ignition repair — worn cylinders and keys that won’t turn
Chevy Sonic Key FAQ
I lost the only key to my Sonic. 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 Sonic is push-to-start — can you program that outside the dealer?
Yes. Late models (2017–2020) use a proximity smart key on Hitag2 Extended / ID46E / NXP PCF7952E, PCF7941E — we carry the fobs and the programmer, and we cut the emergency blade.
How fast can you reach my Sonic in DFW?
We dispatch the nearest mobile unit metroplex-wide, 24/7 — call (214) 717-6398 for an honest ETA.