Hyundai Remote Key Fob (FCC ID RKE-3F03) – Key Details & Fitment

Used across select Hyundai Elantra platforms from 2009 through 2017, the Hyundai Remote Key Fob (FCC ID RKE-3F03) serves as the primary wireless entry device for locking, unlocking, and trunk release functions. Each Hyundai Remote Key Fob (FCC ID RKE-3F03) transmits on the 315 MHz frequency band, which is the standard operating frequency for most North American Hyundai keyless entry remotes of this era. For technicians, this remote is a familiar sight in the field, particularly when servicing mid-2000s to mid-2010s Elantra variants. Owners replacing the fob should understand that a properly paired Hyundai Remote Key Fob (FCC ID RKE-3F03) restores full remote keyless entry functionality without the need for aftermarket workarounds.

Hyundai Remote Key Fob (FCC ID RKE-3F03) Vehicle Compatibility

The RKE-3F03 has been validated for two specific Hyundai models and production year ranges:

• Hyundai Elantra GT — model years 2012 through 2017
• Hyundai Elantra Touring — model years 2009 through 2012

Both of these vehicles share a related platform architecture, which is why a single FCC-registered remote design covers both nameplates. The Elantra Touring was effectively the wagon variant of the Elantra lineup during its production run, while the Elantra GT succeeded it as Hyundai’s compact five-door hatchback offering. Despite the nameplate change, the keyless entry receiver module in these vehicles accepts the same 315 MHz signal encoded by this fob.

It is worth noting that while the Elantra sedan from the same era may look cosmetically similar, remote compatibility is determined by the FCC ID and the vehicle’s receiver module — not by badge or body style alone. Always verify the FCC ID printed on the back of the existing remote or cross-reference the vehicle’s part number catalog before ordering a replacement unit.

Operating Frequency and FCC Registration

The device operates at 315 MHz, which falls within the UHF band commonly allocated for short-range automotive remote keyless entry systems in the United States. The FCC ID RKE-3F03 is the registered identifier assigned to this specific transmitter design, and it can be looked up in the FCC’s OET Equipment Authorization database for additional technical parameters including radiated power limits and modulation type.

For locksmiths and technicians performing diagnostics, confirming the 315 MHz frequency is important when using aftermarket cloning or programming tools. Some universal remotes and diagnostic platforms require manual frequency selection, and an incorrect setting will result in a remote that appears to program successfully but fails to communicate with the vehicle’s receiver.

Replacement and Aftermarket Considerations

The Hyundai Remote Key Fob (FCC ID RKE-3F03) is commercially available through both OEM and aftermarket channels. When selecting a replacement, buyers should prioritize units that match the RKE-3F03 FCC designation exactly. Aftermarket remotes marketed as “compatible” sometimes use a different internal circuit board or oscillator crystal, which can result in range degradation or intermittent operation even after successful programming.

OEM units sourced through Hyundai Motor Company parts departments carry the original component specifications and are generally the most reliable option for a drop-in replacement. Aftermarket alternatives can offer significant cost savings, but quality varies. A reputable locksmith supplier will provide remotes with the correct FCC ID printed on the housing, which is the simplest way to confirm authenticity before programming.

Programming Procedures

Programming the fob to a Hyundai Elantra GT or Elantra Touring typically requires either an on-board programming (OBP) sequence or a diagnostic tool. The availability of a self-programming procedure depends on the specific model year and trim level. Some earlier Elantra Touring models from 2009–2010 may support a manual key-cycle pairing method, while later Elantra GT models from 2015–2017 may require a scan tool connected to the vehicle’s OBD-II port to register new remotes with the body control module.

Automotive locksmiths working with this remote should consult their tool manufacturer’s vehicle coverage database for the most current procedure. Common professional platforms from brands such as Autel, Smart Pro, and similar diagnostic suites include Hyundai remote programming functions for these model years. The process generally involves entering a learning mode on the vehicle’s receiver, pressing a button sequence on the new remote, and confirming successful registration through a lock/unlock cycle.

When more than one remote is being programmed — for instance, if an owner wants a primary and a spare — all remotes should be enrolled in the same programming session. On many Hyundai systems, initiating a new remote learning session clears previously stored remote IDs from the receiver’s memory, meaning any existing remotes not re-enrolled during that session will stop functioning.

Troubleshooting Common Issues

If the device stops working intermittently or loses range, the most common culprit is a depleted battery. This remote uses a standard coin-cell battery (commonly a CR2032, though owners should confirm by opening the housing). Battery replacement is straightforward and does not require reprogramming — the remote’s ID remains stored in both the fob’s memory and the vehicle’s receiver module.

Other failure modes include physical damage to the circuit board from drops or water intrusion, worn-out button contacts, and — less commonly — a failing receiver module in the vehicle itself. If a freshly batteried remote with the correct FCC ID still fails to operate the locks, the programming procedure should be repeated. If reprogramming also fails, the vehicle’s receiver antenna and wiring should be inspected before condemning the remote.

When to Contact a Professional Locksmith

Vehicle owners who are uncomfortable performing battery replacement or on-board programming can have this unit serviced by a qualified automotive locksmith. Mobile locksmith services are particularly convenient for remote programming since the work must be performed at the vehicle. A professional will verify the FCC ID compatibility, supply a tested replacement if needed, and confirm full functionality before completing the service call.

For situations involving multiple lost remotes or a non-responsive keyless entry system, a locksmith with Hyundai-specific diagnostic capability can interrogate the body control module to determine how many remotes are currently enrolled and whether the receiver module is functioning correctly. This diagnostic step saves time and money compared to blind part replacement.