Hey there! So, the Lexus LX 570 is equipped with a V8 engine and doesn't use a traditional timing belt; it actually relies on a timing chain. This means you don't need to change a timing belt like you would in some other vehicles. Instead, you should periodically check the timing chain, especially if the car has high mileage. It's generally recommended to inspect it around every 100,000 kilometers or as specified in the owner's manual. If you have any more questions about your car's maintenance or anything else automotive-related, feel free to ask! I'm here to help with general upkeep tips or any other car-related inquiries.