2024 Toyota Corolla Add Smart Key with Lonsdor K518 Pro + LT32

This guide covers how to add an LT32 Smart Remote and reprogram the OEM smart key on a 2024 Toyota Corolla using the Lonsdor K518 Pro.

Tools Required

Lonsdor K518 Pro Key Programmer 

LT32 Smart Key

OEM Smart Key

FP30 Cable

1. Identify the Key

(1) Select Identify and Copy. Put the original key chip into the K518 Pro card slot. The chip is identified as 4A.

(2) Select Edit EEPROM and check the 40H line. It shows BA type.

(3) Return to the main menu and go to Generate Smart Key → Toyota → Corolla → 2023- / ID4A_BA.

(4) Put the LT32 smart key into the card slot and select Generate. Once generation succeeds, select Cancel.

2. Unlock the OEM Key

(1) Go to Special Functions → Key Settings → Program Toyota Original Key → Toyota Original Key (4A) → Unlock Original Key → Generate Guide Key.

(2) Place the original key flat on the device card slot and click OK, then place the LT32 smart key in the slot and click OK.

(3) Once the guide key is generated successfully, return to the main menu.

3. Add the Smart Key

(1) Go to Immo & Remote → Toyota → Select from Type → PEPS → PEPS (Add Key & AKL) → Type 3 (2022-) → 4A → Backup Immo Data.

(2) Remove the storage box and unplug the smart box. Connect the FP30 cable to the unplugged connector, then connect the OBD cable to the FP30. Click OK and make sure the network is connected.

(3) Turn the ignition on. If it won't turn on, switch on the hazard lights or cycle the emergency flasher from ON to OFF twice. Enter a name for the backup file and save it.

(4) Select Add Smart Key → OK. Keep the vehicle battery fully charged and switch the ignition on. Select Load the read D-flash data of PEPS to acquire 12-bit PIN code, then select the backup file you just saved.

(5) Check the key count. The procedure shows 1 registered key and 3 registrable keys. Within 30 seconds, hold the registered key close to the Start button. When the buzzer beeps once, move the key away. The system should then show 2 registered keys and 2 registrable keys.

(6) Tap the usable key to the Start button and switch the ignition off. If the remote control does not work properly, follow the prompts.

(7) Switch the ignition on. Hold a programmed smart key close to the Start button until you hear one beep. The operation should then complete.

4. Write Back the OEM Key

(1) Return to Special Functions → Key Settings → Program Toyota Original Key → Toyota Original Key (4A) → Write Back to Original Key.

(2) Put the LT32 smart key flat on the K518 Pro card slot and click OK. Then put the original key flat on the card slot and click OK.

(3) Wait for Written successfully before moving on to the vehicle check.

Verification

Start the Corolla with the programmed key, press the brake, and press the Start button. Then lock and unlock the vehicle to confirm the basic remote function.

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LONSDOR K518 PRO Adds 8A-B6 & 4A-B6 IMMO for 2025-2026 Toyota

The LONSDOR K518 PRO now supports the global debut of Toyota/Lexus 8A-B6 and 4A-B6 IMMO programming, adding coverage for selected 2025–2026 Toyota models. The update includes 4A-B6 smart key programming for Avalon, Avalon HV, and Yaris, plus 8A-B6 programming for the 2026 Toyota Land Cruiser.

What's New

The update adds the following vehicle coverage:

Toyota → Select from type → PEPS → Type 11 (CAN) (2025-) → 2025- (4A B6)

Toyota → Select from vehicle → Asia → Avalon HV 2025-2026 → Smart key (4A B6)

Toyota → Select from vehicle → Asia → Avalon 2025-2026 → Smart key (4A B6)

Toyota → Select from vehicle → Asia → Land Cruiser 2026- → Smart key (8A B6)

Toyota → Select from vehicle → Asia → Yaris 2025-2026 → Smart key (4A B6)

Toyota → Select from vehicle → China → Avalon HV → 2025-2026 → Smart key (4A B6)

Toyota → Select from vehicle → China → Avalon → 2025-2026 → Smart key (4A B6)

Toyota → Select from vehicle → Middle East → Land Cruiser → 2026- → Smart key (8A B6)

Applicable Platforms

LONSDOR K518 Series

Update Date: August 11, 2026

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How to Add a 2023 Toyota Yaris Smart Key with Lonsdor K518 Pro?

This guide explains how to program a new smart key for a 2023 Toyota Yaris using the Lonsdor K518PRO. The process involves detecting existing keys, programming a new key, and testing all functions.

Tools Required:

Lonsdor K518PRO Key Programmer

OBD cable

Original key

New smart key

Step-by-Step Instructions:

1. Connect Device:

Plug the OBD cable into the vehicle's diagnostic port.

2. Select Vehicle:

Turn on the K518PRO and select "Immo& Remote→Toyota→ Select from vehicle →Yaris→2021- →Smart Key→ PEPS(CAN)"

3. Detect Existing Keys:

Select "Key count", follow on-screen prompts to place the original key near the ignition:

Open the driver's door and turn the ignition ON.

The device will detect the original key.

4. Add New Key:

Select "Add Smart Key" on the device.

Keep the door open and ignition ON.

When prompted, hold the original key to the immobilizer coil until you hear two beeps.

Then place the new key near the coil until you hear three beeps.

5. Confirm Programming:

Select "Key count" again. Both keys should now show as recognized.

6. Test Functions:

Remote Test: Use both keys to lock/unlock doors remotely.

Smart Function Test: Leave one key inside, take the other outside, and start the ignition.

Ignition Test: Start the vehicle with the new key.

Result:

Both keys should operate all remote, smart, and ignition functions normally.

Notes:

Ensure the vehicle battery is stable during programming.

This procedure is confirmed for the 2023 Toyota Yaris.

Keep original keys accessible throughout the process.

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2016 Toyota Levin IMMO (8A) Smart Key Programming Guide

This article explains how to program a smart key for a 2016 Toyota Levin (IMMO 8A) using the Lonsdor K518 PRO and TY8A-MK1 Kit, including a scenario where all keys are lost (AKL). Follow the steps carefully to complete both key generation and remote programming.

Tools Required:

Lonsdor K518 PRO

OBD communication cable

TY8A-MK1 Kit

New smart key

Step 1: Vehicle Preparation and Wiring

1. Open the fuse box, unplug the relay, and connect the 8A all-keys-lost harness.

2. Remove the steering wheel screws and open the steering column cover.

3. Unplug the lock connector, then connect the 8A speed limit A5 plug.

4. Connect the A7 plug to the adapter.

5. Plug the A4 plug into the vehicle’s OBD port.

6. Connect the OBD cable to the K518 PRO device.

Step 2: Read IMMO Data and Generate Master Key

On the K518 PRO, follow this menu path:

[Immo & Remote] → [Toyota] → [Select by type] → [IMMO] → [8A IMMO AKL (Mechanical Key)] → [8A Immo AKL – Generate Master Key by OBD]

1. After the connection is completed, select [OK] to continue.

2. Adapter board detection will complete automatically.

*No adapter board software upgrade is required.

3. During the process, the anti-theft indicator light may turn on — this is normal.

4. Wait for the communication process to finish.

5. Enter a filename to save the IMMO data.

6. Data reading will complete successfully.

Step 3: Generate the Working Key

1. Use the saved IMMO data file to generate a working key.

2. Follow the on-screen prompts.

3. For the first key:

   * Place the new key into the card slot of the device.

4. Once the process finishes, the screen will confirm key generation successfully.

5. Restore the original vehicle wiring harness.

Chip programming is now complete.

Step 4: Remote Control Programming

1. Select: [Remote] → [Type 2 (CAN)] → [Programming Remote]

2. Turn ON the ignition.

3. Open the driver’s door.

4. Press and hold the Lock and Unlock buttons together for 2 seconds, then press the Lock button again.

5. Click OK on the device once finished.

The screen will display Remote Programming Successful.

Step 5: Functional Test

1. Press the brake pedal.

2. Insert the key and start the vehicle.

   * The vehicle should start normally.

3. Test the remote functions:

   * Lock the car

   * Unlock the car

Both key start and remote control functions should operate normally.

Video Guide

Watch the full video tutorial here:

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Summary

Using the Lonsdor K518 PRO with the TY8A-MK1 Kit, you can successfully perform all-keys-lost smart key programming for a 2016 Toyota Levin IMMO (8A) via OBD, including master key generation and remote control programming.

Adding a Key to 2023 Toyota Yaris with Lonsdor K518 PRO

This guide walks you through the process of programming a new smart key for a 2023 Toyota Yaris using the Lonsdor K518 PRO, even in an all-keys-lost situation.

Step 1: Connect the Device

Connect the OBD cable of the Lonsdor K518 PRO to the vehicle.

Step 2: Enter the Vehicle Menu

On the K518 PRO home screen, select:

[Immo & Remote] → [Toyota] → [Select from vehicle] → [Yaris] → [2021-] → [Smart key] → [PEPS (CAN)]

Choose [All smart key lost].

The tool will prompt:

“This function is used to initialize PEPS ECU, continue?”

Click OK.

The system will begin communication—please wait.

Step 3: Program the New Smart Key

When prompted:

Hold the new smart key close to the Start/Stop button for about 30 seconds.

You will hear the vehicle beep three times, which indicates the programming process has been completed.

Step 4: Test the Key Functions

Test the remote functions (e.g., Lock/Unlock).

Test the smart key functions, such as keyless start.

If both work normally, it confirms that the new key has been successfully programmed.

Result

Using the Lonsdor K518 PRO, the 2023 Toyota Yaris all-keys-lost programming procedure is completed successfully.

Watch the full operation video here:

For more tools and guides, visit:

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Lonsdor K518 PRO Add 2023 Toyota BZ3 Smart Key OBD Tutorial

Today, we're gonna show how to add a 2023 Toyota BZ3 smart key with Lonsdor K518 PRO by OBD.

What We Need:

Lonsdor K518 Pro Key Programmer

OBD Communication Cable

An Original Key & a New Smart Key

Step-by-Step Procedure

Plug in the OBD communication cable.

Immo &Remote >> Toyota >> Select from vehicle >> China >> BZ3 >> 2023- >> Smart key >> PEPS(CAN) >> Add smart key

All keys require reprogramming; unprogrammed keys will become invalid. You can program up to 4 keys.

Click OK to confirm the IK controller serial number.

Start to program no.1 key, pls hold the key closer to the car start button, click OK to continue.

Programmed successfully. Click OK to program the next key.

Start to program the no.2 key. pls hold the key closer to the car's start button, click OK to continue.

Programmed successfully. Click Cancel to complete.

Count of currently programmed and valid keys: 2

Both keys can start the vehicle and remote work well.

Done.

The Lonsdor K518 Key Programmer proves to be a reliable and user-friendly tool for modern Toyota smart key programming.

Video guides:

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