US regulators launch investigation into self-driving Teslas after series of crashes

Core Viewpoint - The National Highway Traffic Safety Administration (NHTSA) has initiated an investigation into Tesla's full self-driving (FSD) technology due to traffic safety violations linked to a series of crashes involving Tesla vehicles [1][2]. Investigation Details - The NHTSA's preliminary evaluation is a precursor to a potential recall if the vehicles are deemed a safety risk [2]. - Reports indicate that 2.88 million Tesla vehicles have been involved in incidents where they ran red lights or changed lanes incorrectly while using the FSD system [2]. Crash Reports - Six reports have been documented where Tesla vehicles with FSD engaged proceeded through red traffic signals, resulting in crashes with other vehicles [3]. - Among these incidents, four crashes led to injuries [3]. Complaints and System Behavior - The NHTSA has received 18 complaints and one media report alleging that Tesla vehicles with FSD failed to stop at red lights or did not accurately display traffic signal states [4]. - Some complainants noted that the FSD system did not provide adequate warnings as the vehicle approached red signals [6]. Previous Investigations - The NHTSA began an inquiry in October 2024 into 2.4 million Tesla vehicles equipped with FSD after four collisions occurred under reduced visibility conditions, one of which was fatal [7]. FSD System Description - Tesla's FSD is designed for use by attentive drivers who are ready to take control at any moment, and it is not intended to make the vehicle fully autonomous [8].