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Chevy Cobalt Key Replacement
Chevy Cobalt keys date back to 2004 and span 1 key system across the model’s generations — transponder. 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 Cobalt Keys
Verified key reference for the Chevy Cobalt — 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 |
|---|---|---|---|---|
| Cobalt | 2004–2010 | transponder | Philips Crypto 2 / Hitag2 / ID46; PassKey 3+ (PK3+) | B111 / HU100 |
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 Cobalt specifically we see: Philips Crypto 2 / Hitag2 / ID46; PassKey 3+ (PK3+). 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?
- 2004–2010: transponder — Philips Crypto 2 / Hitag2 / ID46; PassKey 3+ (PK3+) (B111 / HU100)
Our Cobalt 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 Cobalt Key FAQ
I lost the only key to my Cobalt. 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 Cobalt?
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 Cobalt in DFW?
We dispatch the nearest mobile unit metroplex-wide, 24/7 — call (214) 717-6398 for an honest ETA.