You could get the wheel refurbished, or you could get the inside (the air chamber) sealed using a rubberised paint. Any decent tyre shop should be able to do the latter
Perhaps Lexus has the safety of the UK driver in mind, considering the new laws regarding listening to music whilst driving?
https://www.express.co.uk/life-style/cars/1564685/driving-licence-fine-law-listen-to-radio-sports-team