Program 2023 Lexus LX600 Smart Key with Lonsdor K518 Pro

 Here we willl show you how to add a new smart key to a 2023 Lexus LX600 using the Lonsdor K518 key programmer. Whether you’re a professional locksmith or doing it yourself, this method is quick, reliable, and works seamlessly with the Lonsdor devices.

 

Tools Used:
– Lonsdor K518 Pro/ K518ISE

– Lonsdor FP30 Toyota 30 pin bypass cable

– OEM Smart Key (New or Unused)

 

Step-by-Step Guide to Adding a Smart Key

1. Prepare Your Vehicle

• Ensure your Lexus LX600 is parked in a safe location.

• Have both the original smart key and the new smart key ready.

2. Access the Smart Key Menu

• Go to IMMO & Remote- Lexus- Select from vehicle- LX series- LX600- 2022 onwards (include 2023 and 2024 models)- Smart Key

3. Check Existing Keys

• The system will display the number of smart keys currently programmed to your vehicle. In this case, there were three keys registered.

• Confirm the count before proceeding.

4. Initiate Key Programming

• Select the “Back up IMMO Data” option from the menu.

• Londsor will ask to connect Toyota FP-30 cable to the PEPS box. Connect 30 pin cable with smart box.

• Turn the ignition switch on (but do not start the engine).

Save eeprom data.

Back up immo data successfully.

5. Register the New Key

• Select the “Add Smart Key” option from the menu.
• Select load the D-FLASH data of PEPS to obtain 12-digit pin code.

• Place the original smart key near the ignition or designated key recognition area (usually near the center console).

• Wait for the system to recognize it.

• Next, place the new smart key in the same spot.

• You’ll hear a double beep, indicating the key has been successfully programmed.

 

6. Verify the Key Count

• The system will now show four keys registered (up from the original three).

• Press “OK” to confirm.

7. Test the New Key

• Turn the ignition off and test both keys:

  • Original key: Check if it locks/unlocks the doors and starts the car.

  • New key: Ensure it works for both remote functions and ignition.

If everything works, congratulations! You’ve successfully added a new smart key to your Lexus LX600.