China is mandating that automakers install physical switches or buttons for critical safety functions in vehicles, aiming to curb the trend of screen-heavy dashboards prevalent in models from Tesla Inc. and Xiaomi Corp. This regulatory push, reported by Bloomberg Markets, seeks to enhance driver safety by reducing reliance on complex digital interfaces. The move signals a significant shift in China's approach to automotive safety standards, potentially impacting design choices and production costs for global manufacturers operating in the world's largest car market.