Fatal Xiaomi SU7 crash prompts China to tighten assisted-driving rules
A Xiaomi SU7 sedan crashed in March 2025, killing three occupants seconds after the driver resumed control from the assisted-driving system. The incident prompted China's regulators to finalize new safety rules in July 2025 focusing on monitoring driver awareness and control capability.
What happened
A Xiaomi SU7 sedan crashed in March 2025, killing three occupants seconds after the driver took control from the assisted-driving system.
Following this accident, China's regulators began finalising new safety rules for driver-assistance systems in July 2025.
Reported impact
The incident resulted in the deaths of three occupants.
Index analysis
The new rules will focus on hardware and software designs that monitor a driver's state of awareness and their capacity to take control in time.
Regulators enlisted Chinese automaker Dongfeng and tech giant Huawei to help draft the new rules and sought public input over a month-long period.
Governance controls
Current Chinese regulations allow systems that automatically steer, brake and accelerate under certain conditions while requiring the driver to stay engaged. Marketing terms such as 'smart' and 'autonomous' are banned.
Chinese officials aim to prevent carmakers from overselling the capabilities of assisted-driving systems while balancing innovation and safety.
Classification
Sources and evidence
This record was researched and written by the Index, based on the following original reporting.