The Lexus NX 300 is a fun and agile car that's fun to drive and ready to perform. Lexus has a specific service schedule that car owners should follow to keep the Lexus running smoothly and as efficiently as it can. You can find your Lexus NX 300 maintenance schedule in the owner's manual that you get with your car. The service schedule suggests mileage-based tune-ups that begin at 15,000 miles. From that point on, your car will get service every 15,000 or 30,000 miles through 90,000 miles and beyond. The NX 300 manual tells you exactly when you need to contact us for service.