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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Lonsdor K518 PRO Adds 2020+ Hyundai Elantra Smart Key Success

This guide provides clear step-by-step instructions on how to program a smart key for a 2020 Hyundai Elantra using the Lonsdor K518 PRO tool.

Required Equipment

Lonsdor K518 PRO Key Programmer

OBD communication cable

One original car key

A new Lonsdor smart key

Step-by-Step Programming Instructions

1. Generate New Key

① Connect & Select Vehicle, plug the OBD cable into the vehicle.

② On the K518 PRO, go to:Generation Smart → HYUNDAI → Elantra → Elantra (2020-) ID47

③ Insert the new smart key into the card slot.

④ Tap "Generate" and wait for success.

2. Program Smart Key

① Return to the main menu and select:Immo & Remote → HYUNDAI → Select from Vehicle → China → Elantra 7 → 2020- → Program Smart Key

② Ensure Wi-Fi is connected. Turn the ignition OFF. Open and close the driver's door once.

③ The PIN cannot be read directly—obtain it from a verified source. Enter PIN: 855419 (example used in guide).

④ Within 5 seconds, hold the smart key head against the start button until the immobilizer light turns on. Confirm programming when prompted.

⑤ Follow the same steps for each additional key. All keys must be programmed to start the vehicle.

3. Complete Process

Press Cancel when finished. The tool will display the number of keys successfully programmed.

Verification

1. Test all programmed keys to ensure they start the vehicle.

2. Confirm remote functions operate normally.

Important Notes

Incorrect PIN entry 3 times will lock the function.

Always program all keys in one session.

Keep the original key accessible during the process.

This guide is intended for professional automotive locksmiths and technicians. Always follow vehicle-specific procedures and use secure PIN sources.

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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:

For more information, visit www.obd2shop.co.uk.

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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Guide to Using the Lonsdor BDC03 Solder-Free Clip

The Lonsdor K518 PRO and K518 Series programmers are capable of copying both genuine BMW BDC3 keys and BCP keys. However, the method differs:

For genuine/OEM BDC3 keys, the Lonsdor BDC03 Solder-Free Clip is the required tool.

For BCP keys, the traditional soldering method is still necessary.

This guide focuses on cloning a genuine BMW BDC3 key using the solder-free clip.

Step-by-Step Instructions:

1. Disassemble the Original Key

Begin by taking apart the original car key. Open the back cover and remove the battery to access the internal circuit board.

2. Identify a Genuine BMW BDC3 Key

Upon opening the key, look for the marking "Hungary" on the circuit board. This indicates the key is a genuine BMW BDC3 unit manufactured in Hungary.

Important: Only genuine BMW BDC3 keys with this "Hungary" marking are compatible with this cloning procedure.

3. Connect the Solder-Free Clip

Take the Lonsdor BDC03 Solder-Free Clip. It features four pins designed to match four specific holes on the BDC3 key's circuit board.

Carefully align these four pins with the four designated holes on the key. Once aligned, clamp the clip securely onto the BMW BDC3 keyboard.

4. Connect to the Lonsdor Tool

Connect the other end of the solder-free clip to your Lonsdor K518 PRO or K518 device using the appropriate cable.

You are now ready to proceed with the cloning process via the Lonsdor device's software interface.

For more details, you can refer to this video:

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Lonsdor BM3S Smart Key: Unlock 2020-2024 BMW G-Chassis

Lonsdor introduces the next essential upgrade for every BMW owner - the BM3S Universal Smart Key. Designed for modern G-Chassis BMWs with BDC2, BDC3, and BCP system vehicles. 

Wide Compatibility & Advanced Support

The Lonsdor BM3S seamlessly supports:

2020-2024 BMW Models, including:

2, 3, 4, 5, 6, 7, 8 Series

X3, X4, X5, X6, X7

Z4 and more

2021-2024 BMW 1 Series & 2 Series

2022-2024 BMW X1 & X2

Core Advantages

1. Plug & Play Compatibility - Instantly works with mainstream 2020–2024 BMW models.

2. Two Circuit Board Options - Choose between BM3S-01 or BM3S-02 to match your style.

3. Targeted Performance - Engineered specifically for low-configuration BCP keys (without the J29D5C chip).

4. Professional Pairing - For seamless programming, pair it with the trusted Lonsdor K518 Key Programmer.

Who Is This For?

1. BMW owners who want a reliable spare or replacement smart key.

2. Anyone with a compatible 2020–2024 BMW model.

3. Those looking for a cost-effective and trusted alternative to dealership keys.

Ready to access more? Experience smarter control with Lonsdor.

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