U.S. safety regulators have pressured Tesla into recalling nearly 363,000 vehicles with its "Full Self-Driving" system because it misbehaves around intersections and doesn't always follow speed limits.
The recall, part of a larger investigation by the National Highway Traffic Safety Administration into Tesla's automated driving systems, is the most serious action taken yet against the electric vehicle maker.
It raises questions about CEO Elon Musk's claims that he can prove to regulators that cars equipped with "Full Self-Driving" are safer than humans, and that humans almost never have to touch the controls.
Musk at one point had promised that a fleet of autonomous robotaxis would be in use in 2020. The latest action appears to push that development further into the future.
The safety agency says in documents posted on its website Thursday that Tesla will fix the concerns with an online software update in the coming weeks. The documents say Tesla is recalling the cars but does not agree with an agency analysis of the problem.
The system, which is being tested on public roads by as many as 400,000 Tesla owners, makes such unsafe actions as traveling straight through an intersection while in a turn-only lane, failing to come to a complete stop at stop signs, or going through an intersection during a yellow traffic light without proper caution, NHTSA said.
In addition, the system may not adequately respond to changes in posted speed limits, or it may not account for the driver's adjustments in speed, the documents said.
"FSD beta software that allows a vehicle to exceed speed limits or travel through intersections in an unlawful or unpredictable manner increases the risk of a crash," the agency said in documents.
Musk complained Thursday on Twitter, which he now owns, that calling an over-the-air software update a recall is "anachronistic and just flat wrong!" A message was left Thursday seeking further comment from Tesla, which has disbanded its media relations department.
Tesla has received 18 warranty claims that could be caused by the software from May 2019 through Sept. 12, 2022, the documents said. But the Austin, Texas, electric vehicle maker told the agency it is not aware of any deaths or injuries.
In a statement, NHTSA said it found the problems during tests performed as part of an investigation into Tesla's "Full Self-Driving" and "Autopilot" software that take on some driving tasks. The investigation remains open, and the recall doesn't address the full scope of what NHTSA is scrutinizing, the agency said.
Despite the names "Full Self-Driving" and "Autopilot," Tesla says on its website that the cars cannot drive themselves and owners must be ready to intervene at all times.
The recall announced Thursday covers certain 2016-23 Model S and Model X vehicles, as well as 2017 through 2013 Model 3s, and 2020 through 2023 Model Y vehicles equipped with the software, or with installation pending.
