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Hyundai Ioniq Key Replacement
Hyundai Ioniqs have been on Dallas–Fort Worth roads since the 2017 era, and across 2 key generations this model has used 2 different key systems — smart-proximity (fcc tq8-fob-4f11); smart-proximity (fcc cqofd01470 / cqofn01240). Whichever yours is, DFW Keys 4 Cars cuts and programs it at your location, 24/7: spare keys, lost-everything replacements, fob programming, and lockouts. Call (214) 717-6398.
About Ioniq Keys
The table below is our verified key reference for the Hyundai Ioniq — model years, key types, and the transponder/immobilizer family each generation uses. Generations overlap at boundary years, and trim levels (keyed vs. push-to-start) can differ within the same year, so we always confirm the exact part by VIN before dispatching.
| Model / Generation | Years | Key Type | Transponder / Immobilizer | Blade / FCC |
|---|---|---|---|---|
| Ioniq (hybrid) | 2017–2019 | Smart-proximity (FCC TQ8-FOB-4F11) | Philips ID47 / Hitag 3 | HY18R (emergency insert) |
| Ioniq 5 | 2022–2024 | Smart-proximity (FCC CQOFD01470 / CQOFN01240) | Hitag-AES / 4A chip | HY18R (emergency insert) — confirm by VIN |
Security System & Immobilizer
Hyundai moved from ID46-era transponders and flip keys to Hitag3 ID47 smart keys, with the newest models on ID4A encryption. Chip family determines the programming path, and we match it by VIN.
On the Ioniq specifically, the immobilizer families we see are: Philips ID47 / Hitag 3, Hitag-AES / 4A chip. A key that is cut correctly but not programmed to this system will turn the locks and never start the engine — programming is the half of the job that matters.
Which key does your year have?
- 2017–2019: Smart-proximity (FCC TQ8-FOB-4F11) — Philips ID47 / Hitag 3 (HY18R (emergency insert))
- 2022–2024: Smart-proximity (FCC CQOFD01470 / CQOFN01240) — Hitag-AES / 4A chip (HY18R (emergency insert) — confirm by VIN)
Our Ioniq Key Services
- Key replacement — lost, stolen or broken Ioniq keys cut from code and programmed on-site, including all-keys-lost by VIN
- Spare key duplication — the cheap insurance; most Ioniq spares are done in one short visit
- Fob & transponder programming — remotes, fobiks and smart keys paired to the immobilizer, including proximity fobs
- Lockout service — damage-free entry when the keys are inside, 24/7
- Ignition repair — worn cylinders and keys that won’t turn
Hyundai Ioniq Key FAQ
I lost the only key to my Ioniq. 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 — this is our most common Ioniq call.
My Ioniq is push-to-start. Can you really program that outside the dealer?
Yes. Late-model Ioniqs (2022–2024) use a proximity smart key on the Hitag-AES / 4A chip system — our trucks carry the fobs and the programmer. We cut the emergency blade too.
How fast can you reach my Ioniq in DFW?
We dispatch the nearest mobile unit across the whole metroplex, 24/7. Call (214) 717-6398 with your location and we’ll give you an honest ETA.