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Buick Allure Key Replacement
Buick Allure keys date back to 2005 and span 5 key systems across the model’s generations — transponder key; “passkey 3 (pk3) / megamos crypto 48”; “passkey 3+ (pk3+ / ‘circle plus’) / philips crypto 46”; remote-head flip key. 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 Allure Keys
Verified key reference for the Buick Allure — 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 |
|---|---|---|---|---|
| LaCrosse / Allure | 2005–2006 | Transponder key | Passkey 3 (PK3) / Megamos Crypto 48 | B99 / B102 (GM39) |
| Allure | 2005-2006 | “Passkey 3 (PK3) / Megamos Crypto 48” | Transponder key | |
| LaCrosse / Allure | 2007–2009 | Transponder key | Passkey 3+ (“Circle Plus”) / Philips Crypto 46 | B111 / B106 (GM45) |
| Allure | 2007-2009 | “Passkey 3+ (PK3+ / ‘Circle Plus’) / Philips Crypto 46” | Transponder key | |
| LaCrosse / Allure | 2010–2016 | Remote-head flip key | Hitag2 Extended / ID46, ID46E | HU100 (B111-family) |
| Allure | 2010+ | “Philips Crypto 2 / Hitag2 / ID46” | Transponder key |
Security System & Immobilizer
Buick uses GM’s security systems by era: PassLock cylinders with plain keys, PK3/PK3+ transponders, ID46 keys, and current proximity fobs.
On the Allure specifically we see: Passkey 3 (PK3) / Megamos Crypto 48, Transponder key, Passkey 3+ (“Circle Plus”) / Philips Crypto 46, Hitag2 Extended / ID46, ID46E. 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?
- 2005–2006: Transponder key — Passkey 3 (PK3) / Megamos Crypto 48 (B99 / B102 (GM39))
- 2005-2006: “Passkey 3 (PK3) / Megamos Crypto 48” — Transponder key
- 2007–2009: Transponder key — Passkey 3+ (“Circle Plus”) / Philips Crypto 46 (B111 / B106 (GM45))
- 2007-2009: “Passkey 3+ (PK3+ / ‘Circle Plus’) / Philips Crypto 46” — Transponder key
- 2010–2016: Remote-head flip key — Hitag2 Extended / ID46, ID46E (HU100 (B111-family))
- 2010+: “Philips Crypto 2 / Hitag2 / ID46” — Transponder key
Our Allure 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
Buick Allure Key FAQ
I lost the only key to my Allure. 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 Allure?
On transponder-era cars it opens doors and nothing else — the chip must be programmed to the immobilizer, which is what we do curbside.
Do you still stock keys for older Allures?
Yes — back to the 2005–2006 generation (transponder key), and a fresh code-cut key beats any copy of a worn original.
How fast can you reach my Allure in DFW?
We dispatch the nearest mobile unit metroplex-wide, 24/7 — call (214) 717-6398 for an honest ETA.