The U.S. Department of Energy’s Idaho National Laboratory is conducting a security assessment of Chinese-made lidar sensors to evaluate potential risks associated with their use in American electric and autonomous vehicles. This review is funded by one or more companies in the electric or autonomous vehicle sectors, although which specific companies are behind it remains undisclosed. Several prominent automakers and AV developers, including Rivian, General Motors, Ford, and others, have stated they are not aware of this evaluation, and the lab itself has declined to comment publicly on the matter.

Lidar technology, utilizing laser pulses to map out surroundings, is vital for autonomous driving due to its high-resolution detection capabilities. Chinese suppliers like Hesai and RoboSense have dramatically reduced the cost of lidar, bringing sensor prices from tens of thousands to just a few hundred dollars. This affordability has attracted U.S. companies, prompting some to consider integrating Chinese lidar into their vehicles or collaborating on manufacturing domestically. However, concerns about potential security vulnerabilities have spurred the government and lawmakers to scrutinize these sensors more closely.

Senator Tammy Baldwin and Congressman John Moolenaar are leading legislative efforts to ban Chinese lidar sensors, citing fears that these technologies could be exploited for espionage or data transmission back to China. Industry experts highlight risks such as the possibility of remotely disabling sensors across fleets or covertly sending detailed environmental data through embedded communication chips. While widespread disabling has not been proven, past incidents like a one-day sensor outage due to a leap year bug emphasize the potential for disruptive failures.

The conversation around Chinese lidar also reflects broader challenges U.S. makers face competing with China’s manufacturing scale and cost advantages. Luminar and other domestic companies have consolidated or faltered financially, putting pressure on American automakers to explore options abroad. Regulatory measures have begun restricting some Chinese tech, but lidar sensors have yet to be explicitly banned, leaving the future of their use on U.S. roads uncertain as the security review continues.