On August 18, mark fields, former Ford CEO, talked about the U.S. regulatory investigation of Tesla's advanced driving assistance system autopilot. He said that this involved more than half of Tesla's electric vehicles in the investigation < p > earlier this week, the National Highway Traffic Safety Administration (NHTSA) announced that it would investigate Tesla's autopilot system installed on various types of electric vehicles. According to the conditions listed by NHTSA defect investigation office in the preliminary report, this investigation covers all four models produced by Tesla from 2014 to 2021. Although NHTSA listed only 11 accidents in the published documents, a total of 765000 Tesla vehicles will be involved in the investigation < p > Fields served as CEO of Ford from 2014 to 2017“ This is a major investigation, "he said. However, fields mistakenly confused the autopilot system with Tesla's FSD system in the interview. From the perspective of function and performance, FSD system is very different from autopilot system, and NHTSA has never mentioned FSD system in its documents < p > Fields pointed out that the scale of the investigation shows that this may be bad news for Tesla, because more than half of the cars produced by the company may need to be recalled, which may cost Tesla billions of dollars. Tesla has just broken through the production mark of 1 million vehicles in 2020, and its production capacity will be close to 2 million vehicles this year < p > although the focus of the survey involves more than half of Tesla's ex factory cars, it is worth noting that the company did not start mass production of cars until model 3 was launched in 2017. In addition, autopilot can be used on all Tesla vehicles and became a standard function in March 2019. FSD is not part of the survey, and users can add $10000 for optional < p > Fields said that according to his understanding of the NHTSA investigation process, the whole investigation may take one to one and a half years. Fields added that if NHTSA determines that the autopilot system function does not meet its standards, it can issue a recall order to Tesla < p > according to NHTSA documents, the 11 accidents involving Tesla were all caused by the collision between various types of electric vehicles and emergency vehicles. However, several investigations have shown that in some of these accidents, drivers driving vehicles involved in drunk driving have been revoked their licenses. In addition, the driver of the accident did not follow the instructions for the use of Tesla autopilot system, or the driver was distracted < p > in February 2021, a Tesla driver collided with a police car, injuring five police officers and causing a chain collision. The driver was arrested on suspicion of drunk driving. In March 2021, a driver whose license was revoked in Lansing, Michigan, crashed into a police car. At that time, the vehicle was in automatic driving state, but the driver was judged to drive the vehicle illegally < p > the driver has problems in several examples listed by NHTSA. According to Tesla's statistics, autopilot system is the safest. The data show that an automatic driving system accident occurs only once every 6 million 740 thousand kilometers. The national average is one accident every 770000 kilometers（ Chen Chen) < / P > < p >