On September 15, the National Highway Traffic Safety Administration (NHTSA) asked 12 automobile manufacturers to provide data on their driving assistance systems in order to expand the investigation on Tesla's advanced driving assistance system autopilot < p > it is reported that NHTSA is investigating more than a dozen accidents involving Tesla electric vehicles hitting emergency vehicles. The agency's defect investigation office sent letters to 12 major automobile manufacturers, including Ford, GM, Toyota and Volkswagen, requesting information about its L2 driving assistance system. These systems can control the car steering, braking and accelerating under specific conditions < p > NHTSA requires vehicle manufacturers to provide the number of vehicles equipped with L2 driving assistance systems produced in the United States, the total mileage of vehicles using these systems, as well as the recent improvements and updates of the system. NHTSA also requires these vehicle manufacturers to provide on-site information on customer complaints, accident reports, and any litigation related to L2 driving assistance systems < p > < / P > < p > less than two weeks ago, NHTSA asked Tesla to provide the operation data of autopilot system, including which vehicles sold by the company are equipped with autopilot system and the specific operation parameters of the system. The agency's investigation of autopilot system may have a wide impact on Tesla. In order to promote the vision of autonomous driving, Tesla continues to break through the specified boundaries and release experimental software to untrained customers < p > NHTSA's survey covers about 765000 Tesla vehicles sold from 2014 to 2021. Among the 12 accidents being investigated by NHTSA, Tesla hit a parked emergency vehicle when the autopilot system was activated, resulting in 17 injuries and 1 death. Most of these accidents occur after dark, and the software ignores the on-site control measures such as warning lights, signal lights, warning cones and arrow indicators < p > NHTSA requires Tesla to submit relevant data before October 22. U.S. automakers such as Ford, GM and stellantis need to submit relevant data before November 3. The deadline for other automakers, including Toyota, Subaru, Nissan and Honda, is November 17. Carmakers that fail to respond could face fines of up to $115 million < p > a Toyota spokesman said that the company would comply with NHTSA's requirements. A Volkswagen spokesman declined to comment, and other carmakers did not respond to requests for comment. (Chen Chen) < / P > < p >