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Cadillac CT4 / CT5 Key Replacement
Cadillac CT4 / CT5 keys date back to 2020 and span 1 key system across the model’s generations — smart proximity (5-btn, global b). 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 CT4 / CT5 Keys
Verified key reference for the Cadillac CT4 / CT5 — 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 |
|---|---|---|---|---|
| CT4 / CT5 | 2020–2025 | Smart proximity (5-btn, Global B) | Hitag Pro / ID49 (NCF29A1) – FCC YG0G20TB1 (433 MHz), PN 13536990 | HU100 emergency insert |
Security System & Immobilizer
Cadillac pioneered VATS resistor keys and moved through PassKey and PK3 transponders to ID46 keys and today’s proximity fobs.
On the CT4 / CT5 specifically we see: Hitag Pro / ID49 (NCF29A1) – FCC YG0G20TB1 (433 MHz), PN 13536990. 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?
- 2020–2025: Smart proximity (5-btn, Global B) — Hitag Pro / ID49 (NCF29A1) – FCC YG0G20TB1 (433 MHz), PN 13536990 (HU100 emergency insert)
Our CT4 / CT5 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
Cadillac CT4 / CT5 Key FAQ
I lost the only key to my CT4 / CT5. 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 CT4 / CT5 is push-to-start — can you program that outside the dealer?
Yes. Late models (2020–2025) use a proximity smart key on Hitag Pro / ID49 (NCF29A1) – FCC YG0G20TB1 (433 MHz), PN 13536990 — we carry the fobs and the programmer, and we cut the emergency blade.
How fast can you reach my CT4 / CT5 in DFW?
We dispatch the nearest mobile unit metroplex-wide, 24/7 — call (214) 717-6398 for an honest ETA.