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
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Ensure your Lexus LX600 is parked in a safe location.
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Have both the original smart key and the new smart key ready.
2. Access the Smart Key Menu
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Go to IMMO & Remote- Lexus- Select from vehicle- LX series- LX600- 2022 onwards (include 2023 and 2024 models)- Smart Key
3. Check Existing Keys
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The system will display the number of smart keys currently programmed to your vehicle. In this case, there were three keys registered.
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Confirm the count before proceeding.
4. Initiate Key Programming
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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.
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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.
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Place the original smart key near the ignition or designated key recognition area (usually near the center console).
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Wait for the system to recognize it.
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Next, place the new smart key in the same spot.
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You’ll hear a double beep, indicating the key has been successfully programmed.
6. Verify the Key Count
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The system will now show four keys registered (up from the original three).
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Press “OK” to confirm.
7. Test the New Key
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Turn the ignition off and test both keys:
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Original key: Check if it locks/unlocks the doors and starts the car.
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New key: Ensure it works for both remote functions and ignition.
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If everything works, congratulations! You’ve successfully added a new smart key to your Lexus LX600.
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