BSD system stopped working one day along with the Rear Cross Traffic Alert.The button which operates system ds not come and system ds not work. Warning lamp lit on instrument panel and said’ check B SD system’ meaning the whole system dsn’t work. Took to my local shop and they couldn’t repair as they stated the system is a proprietary system the had no software. service bulletin #19-BE-009H was issued in 5-19 by Hyundai for this issue with car. So there is a know problem