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Cadillac CT6 Key Replacement
Cadillac CT6 keys date back to 2016 and span 2 key systems across the model’s generations — smart proximity; hitag 2 ext./id46e. 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 CT6 Keys
Verified key reference for the Cadillac CT6 — 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 |
|---|---|---|---|---|
| CT6 | 2016–2020 | Smart proximity | Hitag2 Ext. / ID46E – FCC HYQ2EB (433 MHz) | HU100 emergency insert |
| CT6 | 2016-2020 | Hitag 2 Ext./ID46E | HYQ2EB | PCF7937E, PCF7961E |
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 CT6 specifically we see: Hitag2 Ext. / ID46E – FCC HYQ2EB (433 MHz), HYQ2EB. 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?
- 2016–2020: Smart proximity — Hitag2 Ext. / ID46E – FCC HYQ2EB (433 MHz) (HU100 emergency insert)
- 2016-2020: Hitag 2 Ext./ID46E — HYQ2EB (PCF7937E, PCF7961E)
Our CT6 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 CT6 Key FAQ
I lost the only key to my CT6. 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 CT6?
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 CT6 in DFW?
We dispatch the nearest mobile unit metroplex-wide, 24/7 — call (214) 717-6398 for an honest ETA.