Hyundai/Kia OEM Smart Key Fob – Multi-Variant Proximity Key
By Mohammad H. Abdelhadi, ALOA-Certified Master Locksmith, mobile automotive locksmith. Reviewed by Ray Obar, Master Locksmith. Updated .
Used in select Hyundai and Kia platforms, the Hyundai/Kia OEM Smart Key Fob serves as the factory proximity entry and push-to-start device for a range of model years and trims. Because this product line covers multiple vehicle variants, exact specifications — including transponder chip family, operating frequency, and FCC certification — can differ depending on the specific unit sourced. The Hyundai/Kia OEM Smart Key Fob has been validated for fitment with the Hyundai Ioniq (2016–2022), though the fob may also correspond to additional models within the broader Hyundai Motor Company and Kia lineups. Before ordering or programming, technicians should verify that the device matches the target vehicle’s immobilizer and keyless-entry system requirements.
Important Notes on Variant Coverage
Because the Hyundai/Kia OEM Smart Key Fob designation spans multiple vehicle platforms and production years, no single set of technical specifications applies universally. Some units associated with the Hyundai Ioniq generation may use an ID47 (Hitag3) transponder and operate at 433 MHz, but these details have not been independently confirmed for every variant sold under this SKU. Locksmiths and end users should cross-reference the part number printed on the back of the fob with OEM catalogs or dealer resources before assuming chip type or frequency compatibility.
Without a confirmed FCC ID tied to this listing, RF compliance data cannot be cited here. Automotive locksmiths familiar with the Hyundai and Kia ecosystems will recognize that factory smart keys from overlapping production windows sometimes share housings but differ internally — a detail that matters when sourcing replacements or performing immobilizer enrollment.
Confirmed Vehicle Fitment
The following fitment has been validated for the Hyundai/Kia OEM Smart Key Fob:
- Hyundai Ioniq (2016–2022) — hybrid, plug-in hybrid, and electric variants were produced across this span; the correct fob may differ by drivetrain and market region.
Owners of other Hyundai or Kia vehicles who encounter a visually identical fob should not assume interchangeability. Even within the Ioniq line, mid-cycle refreshes sometimes introduced updated electronics, which can affect whether a particular unit will pair during the programming procedure.
Programming and Locksmith Considerations
Enrolling an OEM proximity key to a Hyundai or Kia typically requires a diagnostic scan tool capable of communicating with the vehicle’s Smart Key Unit (SKU module) and body control module. On-board programming procedures are generally not available for smart keys in Hyundai and Kia vehicles; an aftermarket tool such as Autel IM608, SmartPro, or a comparable advanced programmer is needed to register the device to the immobilizer.
Because this listing may encompass more than one internal hardware revision, the technician should read the transponder before initiating the key-learn sequence. Confirming that the transponder responds on the expected protocol avoids wasted time and potential module lockout from repeated failed enrollment attempts.
Emergency blade extraction — if the fob contains a mechanical insert — is relevant when the vehicle’s battery is dead or the smart key battery has been depleted. The physical blade profile should match the driver’s door cylinder. Blade blanks are keyed to a specific cut code tied to the VIN, so a replacement fob sourced without a pre-cut blade will need cutting by a locksmith equipped with the correct key machine and bitting data.
When to Consult a Professional
Vehicle owners who need a replacement proximity key for a 2016–2022 Hyundai Ioniq — or a related Hyundai/Kia model — should provide the locksmith with the vehicle’s VIN, the part number from the existing fob (if available), and information about how many working keys remain. This helps the technician identify the correct unit and determine whether an all-keys-lost scenario applies, which changes both the tooling and the time required to complete the job.
Specifications and fitment
| Key type | Smart Key |
|---|---|
| Transponder chip | ID47 |
| Frequency (MHz) | 433 |
| Region(s) | ASIA, AUO, EU, MEA, USA |
| Product type | Smart Key |
| Compatible makes | Hyundai |
Listed vehicle fitment
| Make | Model | Years |
|---|---|---|
| Hyundai | Ioniq | 2016–2022 |
Fitment must be confirmed against the existing key’s FCC ID family and the vehicle’s exact configuration before cutting or programming. VIN or photo verification may be required.
Questions and answers
Which vehicles does Hyundai/Kia OEM Smart Key Fob fit?
Hyundai/Kia OEM Smart Key Fob is listed to fit Hyundai applications such as Hyundai Ioniq. Confirm the exact year range and the existing key’s FCC ID family before ordering, since fitment can vary by trim and region.
Does Hyundai/Kia OEM Smart Key Fob need programming?
Yes. Because it carries a transponder/remote function (chip ID47), it must be programmed (paired) to the vehicle’s immobilizer and, for remote functions, to the keyless-entry system. Many vehicles also require at least one working key to add a new one.
Does the blade need to be cut?
A push-to-start smart key has no traditional blade to cut in normal use, though many include an emergency insert key that can be cut separately.
Is Hyundai/Kia OEM Smart Key Fob OEM or aftermarket?
This listing is an aftermarket-grade replacement intended to match the original key’s electronic and mechanical specification. It is not required to carry a vehicle-brand logo and should be matched by FCC ID family and chip type rather than by appearance.
Related help: Hyundai auto locksmith, car key replacement, car key programming.
Compatible and related keys: Hyundai 4-Button Remote Key Fob (FCC ID OSLOKA-310T) (compatible fob), Hyundai 4-Button Remote Key Fob (FCC ID OSLOKA-360T), Hyundai 4-Button Remote Key Fob (FCC ID OSLOKA-423T) (compatible fob), Hyundai 4-Button Remote Key Fob (FCC ID OSLOKA-950T), compatible Hyundai/Kia OEM Remote Key Fob, related key: Hyundai/Kia OEM Smart Key Fob (FCC ID HYN14R), Hyundai/Kia OEM Smart Key Fob, compatible Hyundai Remote Key Fob (FCC ID OKA-320T), Hyundai Smart Key Fob (compatible fob), compatible Hyundai/Kia OEM Smart Key Fob.
Check Fitment and Key Help
Low Rate Locksmith, a mobile automotive locksmith, can confirm whether Hyundai/Kia OEM Smart Key Fob matches an existing FCC ID family and coordinate cutting and programming when the vehicle configuration requires professional service. For dispatch and support, call (833) 439-8636 or email info@lowratelocksmith.com.
Frequently asked questions
Get help for your vehicle
Share your year + situation and we'll confirm compatibility and a typical price range. Or call the dispatch number directly.
- ✅ Compatibility first
- 🧾 Itemized scope
- 🪪 Authorization required