Honda OEM 4-Button Remote Key Fob – KOBUTAH2T 315 MHz Remote

Used across the Honda Accord (1997–2002) and Acura TL (1999–2003) platforms, the Honda OEM 4-Button Remote Key Fob handles remote keyless entry and basic security functions for two of Honda key & lock service‘s most popular models from that era. Each Honda OEM 4-Button Remote Key Fob carries the part designation KOBUTAH2T and transmits at 315 MHz to communicate with the vehicle’s body control receiver. For technicians, this remote presents a straightforward but generation-specific enrollment procedure that differs from later Honda push-to-start systems. Owners replacing the fob after years of daily use will find that a correctly programmed Honda OEM 4-Button Remote Key Fob restores full four-button functionality — lock, unlock, trunk release, and panic — without dealer intervention when handled by a qualified locksmith.

Honda OEM 4-Button Remote Key Fob — Technical Overview

The KOBUTAH2T designation identifies this specific remote within Honda’s OEM parts catalog. Operating at a 315 MHz radio frequency, the device communicates with the vehicle’s keyless entry receiver module mounted inside the cabin. The four-button layout covers the core functions drivers expect: door lock, door unlock, trunk or hatch release, and a panic alarm. Unlike later Honda smart-proximity systems, this unit relies on line-of-sight RF transmission rather than passive polling, meaning the driver must physically press a button to trigger the desired action.

The 315 MHz operating frequency is standard across most North American Honda and Acura models produced during this period. Signal range under normal conditions typically reaches 30 to 50 feet, though walls, interference from nearby electronics, and a weakened battery can reduce effective distance. A fresh CR1616 or CR2016 coin cell — depending on the specific housing revision — generally powers the fob for 12 to 24 months of average use.

Vehicle Fitment: Accord and TL Applications

The validated fitment list for this remote covers two model lines:

• Honda Accord (1997–2002) — Sixth-generation (1998–2002) and late fifth-generation (1997) Accord sedans and coupes equipped with factory keyless entry.
• Acura TL (1999–2003) — Second-generation TL sedans, which shared significant electrical architecture with the Accord platform of the same era.

Because the Accord and TL share underlying body electronics from this production window, the same KOBUTAH2T remote serves both nameplates. Locksmiths working on either vehicle should confirm the existing remote’s part number before ordering a replacement, since visually similar Honda remotes from adjacent model years may use different rolling-code protocols or button configurations.

Programming Procedure Notes

Enrolling the fob to a late-1990s or early-2000s Honda or Acura typically involves an on-board programming sequence rather than dedicated diagnostic software. The general approach requires cycling the ignition and pressing a button on the remote within a timed window so the receiver captures the unit’s unique rolling code. Multiple remotes — up to three or four, depending on the specific vehicle — can usually be enrolled in a single programming session.

A few practical considerations for technicians:

• The programming window is time-sensitive. Missing a step usually means restarting the entire sequence from the beginning.
• All remotes intended for the vehicle should be programmed in the same session. Adding a new remote later often clears previously stored units from receiver memory.
• If the battery in the replacement fob is low out of the box, the receiver may not register the signal during enrollment. Testing battery voltage before starting saves time.

Vehicle owners comfortable with precise, timed procedures can sometimes complete the process without professional assistance, but a locksmith familiar with Honda’s OBP (on-board programming) sequences can finish the job quickly and verify function on the spot.

OEM vs. Aftermarket Replacement Considerations

Because the Honda Accord and Acura TL models this remote fits are now more than two decades old, sourcing a genuine OEM KOBUTAH2T unit can require patience. Aftermarket alternatives exist and generally replicate the 315 MHz transmission and four-button layout. However, build quality varies — cheaper clones may exhibit reduced signal range, poorly seated battery contacts, or button membranes that degrade faster than the original Honda part.

When evaluating an aftermarket option, locksmiths should verify that the replacement uses the correct frequency and rolling-code format. A mismatch in either parameter will prevent successful enrollment regardless of how many times the programming sequence is attempted. The physical shell dimensions also matter; an aftermarket case that does not seat the circuit board snugly can lead to intermittent button response.

When to Consult a Locksmith

The most common scenarios that bring Accord and TL owners to a locksmith for this remote include:

• Non-responsive buttons after battery replacement — If swapping the coin cell does not restore function, the fob’s internal circuit board may have corroded contacts or a failed solder joint. A locksmith can diagnose whether reprogramming, cleaning, or full replacement is the appropriate fix.
• All remotes lost — When no working remote is available, the on-board programming sequence cannot be initiated in the standard way on most 1997–2003 Honda and Acura vehicles. A locksmith with the proper diagnostic interface can bypass this limitation and enroll a new unit.
• Intermittent range issues — Reduced transmission distance that persists with a fresh battery may indicate antenna damage inside the fob or a failing receiver module in the vehicle. A professional can isolate which component is at fault.

For vehicles of this age, combining a remote replacement with a general inspection of the door-lock actuators and trunk-release solenoid is worthwhile. Mechanical wear in those components can mimic a remote malfunction even when the fob itself is transmitting correctly.

Key Specifications Summary