Hyundai 4-Button Remote Key Fob (FCC ID OSLOKA-950T) – Full Guide

Operating at 315 MHz with a four-button layout, the Hyundai 4-Button Remote Key Fob (FCC ID OSLOKA-950T) handles keyless entry duties for select Hyundai sedans produced between 2009 and 2016. This unit is identifiable by its FCC ID printed on the back housing and its ergonomic four-button face — Lock, Unlock, Panic, and Trunk Release. The fob communicates with the vehicle’s Body Control Module (BCM) at its designated radio frequency to trigger door lock actuators and the trunk release solenoid. Compatible vehicles include both the Hyundai Elantra and Sonata platforms from overlapping production years. A correctly programmed Hyundai 4-Button Remote Key Fob (FCC ID OSLOKA-950T) will respond within the standard operational range expected of 315 MHz keyless entry remotes, typically between 30 and 50 feet in open conditions. When sourcing a replacement, confirming the OSLOKA-950T designation ensures electrical and protocol compatibility with the target vehicle’s receiver module.

Vehicle Compatibility for the Hyundai 4-Button Remote Key Fob (FCC ID OSLOKA-950T)

This remote carries validated fitment for two of Hyundai car key help‘s most popular sedan lines during a period when the automaker standardized its keyless entry architecture across several model years:

• Hyundai Elantra (2010–2016) — Covering the fourth-generation (HD) tail end and the full run of the fifth-generation (MD/UD) Elantra. The remote interfaces with the Elantra’s BCM for all four functions: lock, unlock, trunk release, and panic alarm activation.
• Hyundai Sonata (2009–2014) — Spanning the sixth-generation (YF) Sonata and the final year of the NF platform. The same 315 MHz signal protocol applies across these model years, making the device a drop-in replacement provided programming is completed.

It is worth noting that while the physical shell and button configuration may appear identical to other Hyundai/KIA OEM Remote Key Fob – 315 MHz HYN6 Remote remotes from the same era, the FCC ID is the authoritative identifier. Remotes carrying a different FCC ID — even if they look similar — may operate on a different frequency or use a different rolling-code protocol. Always verify OSLOKA-950T on the rear label or internal circuit board before purchasing.

Button Functions and Physical Layout

The four buttons on this remote are arranged in a standard Hyundai Remote Key Fob FCC ID OKA-320T – Specs & Fitment Gui configuration that was common across the brand’s 2009–2016 sedan lineup:

• Lock (closed padlock icon) — Sends a single lock command to all doors. A double-press on some Elantra and Sonata configurations will trigger a confirmation horn chirp, depending on the vehicle’s BCM settings.
• Unlock (open padlock icon) — A single press typically unlocks the driver’s door only. A second press within a few seconds unlocks all remaining doors. This two-stage unlock behavior is configurable through the vehicle’s onboard settings menu on some model years.
• Trunk Release (open trunk icon) — Actuates the trunk lid release solenoid. On Sonata models equipped with the smart trunk feature, this button supplements the hands-free kick sensor rather than replacing it.
• Panic (horn icon or red triangle) — Activates the vehicle’s horn and hazard lights for a timed duration, typically around 30 seconds. Pressing any other button on the remote cancels the alarm.

The housing itself is a two-piece snap-fit plastic shell, usually in black with a matte or lightly textured finish. A CR2032 coin-cell battery powers the device, and battery life under normal usage patterns — roughly 3–5 presses per day — tends to last between 12 and 24 months before replacement is needed.

Programming Procedures

Programming the Hyundai 4-Button Remote Key Fob (FCC ID OSLOKA-950T) to a compatible vehicle requires access to the vehicle’s onboard diagnostic port (OBD-II) and appropriate diagnostic or programming equipment. Unlike some older Hyundai models that supported owner-initiated programming sequences through ignition cycling, the Elantra (2010–2016) and Sonata (2009–2014) generally require a scan tool or dedicated key programming device to register a new remote with the BCM.

The general workflow for a locksmith or dealership technician involves the following steps:

1. Connect diagnostic hardware to the vehicle’s OBD-II port, located under the driver-side dashboard.
2. Access the BCM or immobilizer module through the tool’s Hyundai-specific menu.
3. Select the remote programming function and follow prompts to place the vehicle in learn mode.
4. Press a button on the new remote when instructed. The BCM will store the device’s rolling code seed.
5. Test all four buttons to confirm successful registration and proper range.

When a new remote is enrolled, previously programmed remotes may need to be re-registered during the same session to remain functional. This is a security design choice — the BCM overwrites its remote memory during programming to prevent unauthorized units from retaining access. Technicians should have all remotes the vehicle owner intends to use present during the procedure.

OEM vs. Aftermarket Considerations

The OSLOKA-950T is available as both an original equipment manufacturer (OEM) unit and in aftermarket form. OEM units are sourced directly through Hyundai’s parts distribution network and carry the Hyundai logo on the housing. Aftermarket alternatives replicate the FCC-registered circuitry and rolling-code protocol but may differ in shell quality, button feel, or battery door mechanism.

From a functional standpoint, a properly manufactured aftermarket remote carrying the correct FCC ID will program and operate identically to the OEM version. The differences tend to be tactile — button press resistance, plastic seam tolerances, and rubber pad durability. For vehicle owners prioritizing longevity and exact factory feel, the OEM route is straightforward. For budget-conscious replacements or fleet applications, aftermarket units offer a cost-effective alternative without sacrificing signal reliability.

Battery Replacement

Replacing the battery in this remote is a straightforward process that does not require reprogramming. The fob uses a single CR2032 lithium coin cell. To replace it:

1. Locate the seam along the edge of the remote housing.
2. Insert a thin flat-head screwdriver or plastic pry tool into the seam and gently twist to separate the two halves.
3. Remove the old CR2032 cell, noting the polarity orientation (positive side typically faces up toward the button pad).
4. Insert the new battery in the same orientation and snap the housing closed.

Signs of a low battery include reduced operating range, inconsistent response, or the need to press buttons multiple times before the vehicle responds. Replacing the battery promptly avoids the inconvenience of a fully dead remote, which would require manual key insertion for door entry on vehicles equipped with a traditional key cylinder backup.

When to Contact a Locksmith

Professional locksmith service is the most practical route for programming the Hyundai 4-Button Remote Key Fob (FCC ID OSLOKA-950T). Mobile automotive locksmiths equipped with Hyundai-compatible diagnostic tools can perform the registration on-site, often at a lower cost and shorter wait than a dealership appointment. This is particularly relevant for Elantra and Sonata owners outside of warranty coverage, where dealership labor rates add significantly to the total replacement cost.

A qualified locksmith can also verify that the replacement remote’s FCC ID matches the vehicle’s receiver specifications before programming, reducing the risk of purchasing an incompatible unit. For owners managing multiple vehicles in the same household or fleet, having all remotes programmed in a single service call is both time-efficient and cost-effective.