Enhance your key programming capabilities with the Lonsdor LT20-01 + 4-Button Universal Smart Remote Smart Key, designed for seamless integration with Toyota and Lexus vehicles. This smart key is compatible with Lonsdor key programming devices such as the K518S, K518ISE, and KH100+, offering a versatile solution for automotive locksmiths and technicians.

Key Features:

• Frequency Switchable: Easily switch between 433 MHz and 315 MHz to match various vehicle requirements.

• Chip Compatibility: Supports both 8A and 4D chips, facilitating a wide range of key programming tasks.

• Button Configuration: 4-button layout including Lock, Unlock, Hatch/Trunk, and Panic functions.

• Battery Type: Powered by a CR2032 battery (not included).

• Emergency Key: Please note that the emergency key is not included.

• Proximity/Smart/Keyless Go: Fully supports proximity functions for keyless entry and start.

• Board Numbers: Compatible with board numbers 3370, 0410, A433/F433, and 5290.

• Supported Frequencies: 314.35/312.09, 312.09/314.35, 312.50/314.00, 433.58/434.42, 314.35/315.10, 314.35, 433.92 MHz.

Programming Instructions:

Utilize Lonsdor devices such as the K518PRO-FULL VERSION, or KH100+ to program this smart key. The process involves generating the key, selecting the appropriate chip type (4D or 8A), and setting the desired frequency (315 MHz or 433 MHz). Ensure that the key is generated before attempting to program it to the vehicle.

Lonsdor LT20-01 8A/4D Smart Key Board – Toyota/Lexus Universal 4-Button Remote (315/433 MHz)

Figure: The Lonsdor LT20-01 Smart Key Board is a universal 4-button remote PCB supporting both 4D and 8A chip types for Toyota and Lexus vehicles. It offers ultimate versatility by enabling conversion between chip types and switchable frequencies (315 MHz and 433 MHz) for broad model compatibility. As part of Lonsdor’s LT20 series, this board can replace multiple OEM smart key boards and is easily programmable with Lonsdor key tools (K518 series, KH100+), making it a one-stop solution for modern Toyota/Lexus smart key replacements.

Product Overview

Experience ultimate versatility with the Lonsdor LT20-01 Smart Key Board, the latest universal smart key solution for Toyota and Lexus models. This innovative 4-button remote PCB (printed circuit board) supports both 8A and 4D transponder chips, allowing seamless conversion between the two types. It means you can generate a working smart key whether the vehicle uses a newer 8A (Toyota “H” chip) or older 4D (Toyota “G” chip) immobilizer system, all with the same board. The LT20-01 also features frequency switchability – toggle between 315 MHz and 433 MHz as needed – covering different regional remote frequencies. This broad compatibility, combined with four programmable buttons (e.g. Lock, Unlock, Trunk, Panic), makes the LT20-01 an ideal replacement or upgrade for a wide range of Toyota and Lexus smart keys. Built with stable, high-quality components, it ensures reliable performance and longevity, while being fully reusable and firmware-upgradable for future expansion. Tailored for professional locksmiths and technicians, the LT20-01 board simplifies Toyota/Lexus key programming tasks by consolidating multiple key types into one universal smart key platform.

Key Features and Benefits

• Multi-Chip Compatibility: Supports the conversion between 4D and 8A keys for Toyota and Lexus, covering both older and newer smart key systems. One board can serve as either chip type, reducing the need for separate key units.

• Switchable Frequencies (315/433 MHz): Hardware supports dual frequencies out of the box – easily switch between 315 MHz and 433 MHz to match the vehicle’s required remote frequency. This ensures global coverage, making the board usable in US, EU, and other regions (All Countries).

• Four Programmable Buttons: Comes with 4 buttons that can be programmed for functions such as Lock, Unlock, Trunk/Hatch, and Panic. Using Lonsdor tools, you can read or redefine each button’s function, allowing the same board to adapt to different remote layouts or model-specific button configurations.

• Replaces Multiple OEM Boards: The LT20-01 is engineered to replace several Toyota/Lexus smart key board part numbers (3370, 0410, A433/F433, 5290). In other words, this single board covers the functionality of those various boards, making it a universal solution that simplifies inventory for locksmiths.

• Easy Lonsdor Integration: Designed for use with Lonsdor programming devices. It’s free and easy to generate using a Lonsdor K518 series programmer, and also compatible with the portable Lonsdor KH100+ key generator. No extra tokens or fees are required – just select the LT20 smart key function on your Lonsdor device to configure and program the board. (See “Programming & Usage” below for details.)

• High-Quality, Upgradeable Design: Manufactured by Lonsdor with stable performance and durability in mind. The board supports firmware updates via the programmer, ensuring it stays up-to-date as new car models are supported. It also allows advanced functions like key unlocking/reset, remote cloning (copying an existing 8A smart key) and even emergency key generation, providing flexibility for various scenarios.

Supported Vehicle Models and Years

This LT20-01 smart key board can be configured to work with a wide range of Toyota and Lexus vehicles. Below is a compatibility list (based on manufacturer data) of supported models and year ranges that the LT20-01 currently covers:

Lexus Models

Toyota Models

Refer to the above LT20-01 usage chart (image) for a visual reference of model compatibility. New vehicle support is periodically added via firmware updates. (Note: Subaru, Hyundai, and Kia smart keys are not supported on LT20-01 at this time – those will be covered by future Lonsdor updates.)

Programming & Usage

Integrating the LT20-01 into your workflow is straightforward. Lonsdor K518 programmers (including K518ISE/K518S/Pro) have a dedicated menu for LT series keys – simply navigate to Home > Special Functions > Key Setting > LT Smart Key on the device. For the Lonsdor KH100+ handheld, go to Home > Special Functions > LT Smart Key. From there, you can perform operations like “Get version information” (to read the board’s current settings), “Generate smart key” (to program it as 4D or 8A for a specific car), “Convert key type” (switch between 8A and 4D modes), and “Modify Remote Frequency” (toggle between 315/433 MHz). The programming process is user-friendly: for example, to generate a new key, you simply place the LT20-01 board into the K518’s slot or connect via the KH100+, select the desired car model, and follow the on-screen prompts to write the data. Within minutes, you’ll have a working Toyota/Lexus smart key ready to be synced to the vehicle.

Key Shell & Power: Keep in mind, the LT20-01 is the internal PCB only – you will need a compatible smart key shell (case with buttons) and an emergency key blade to assemble a complete key. This board is designed to fit into various Toyota/Lexus smart key shells (4-button types). Shells are sold separately, so you can choose the style that matches your vehicle. The unit uses a standard CR2032 battery (not included) for power. Once assembled and programmed, it functions just like an original smart key, supporting keyless entry and push-start ignition in the vehicle.

Package Includes

• 1× Lonsdor LT20-01 Toyota/Lexus Smart Key Board (universal PCB, 4-button). Note: No key shell or blade is included – this listing is for the electronic board only.

SEO Keywords

smart key, Lonsdor LT20-01, Toyota key programming, Lexus smart key, key shell, 4D chip, 8A chip, universal key board, keyless entry remote, Lonsdor K518, Lonsdor KH100+, Toyota Lexus key PCB, KEYSRUS.