- (214) 717-6398
- info@dfwkeys4cars.com
- Mon - Fri: 9:00 - 18:30
Buick Century Key Replacement
Buick Century keys date back to 1997 and span 4 key systems across the model’s generations — mechanical (passlock — no transponder); “passlock system / standard mechanical metal key”; transponder key; “passkey 3 (pk3) / megamos crypto 48”. 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 Century Keys
Verified key reference for the Buick Century — 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 |
|---|---|---|---|---|
| Century | 1997–1999 | Mechanical (Passlock — no transponder) | Passlock system (no chip in key) | B91 / B102 (GM39) |
| Century | 1997-1999 | “Passlock System / Standard mechanical metal key” | Mechanical key | |
| Century | 2000–2005 | Transponder key | Passkey 3 (PK3) / Megamos Crypto 48 | B99 / B102 (GM39) |
| Century | 2000-2005 | “Passkey 3 (PK3) / Megamos Crypto 48” | 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 Century specifically we see: Passlock system (no chip in key), Mechanical key, Passkey 3 (PK3) / Megamos Crypto 48, Transponder key. 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?
- 1997–1999: Mechanical (Passlock — no transponder) — Passlock system (no chip in key) (B91 / B102 (GM39))
- 1997-1999: “Passlock System / Standard mechanical metal key” — Mechanical key
- 2000–2005: Transponder key — Passkey 3 (PK3) / Megamos Crypto 48 (B99 / B102 (GM39))
- 2000-2005: “Passkey 3 (PK3) / Megamos Crypto 48” — Transponder key
Our Century 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 Century Key FAQ
I lost the only key to my Century. 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 Century?
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 Centurys?
Yes — back to the 1997–1999 generation (mechanical (passlock — no transponder)), and a fresh code-cut key beats any copy of a worn original.
How fast can you reach my Century in DFW?
We dispatch the nearest mobile unit metroplex-wide, 24/7 — call (214) 717-6398 for an honest ETA.