The company’s Lexus brand will only sell electric cars by 2030 in China, Europe and the United States.
“We are aware of driver concerns and are discussing the feature with the manufacturer,” the National Highway Traffic Safety Administration said in a statement.
The feature raises fresh questions about whether Tesla is compromising safety as it rushes to add new technologies.
The automaker may have undermined safety in designing its Autopilot driver-assistance system to fit its chief executive’s vision, former employees say.
The electric car company is helping Chinese companies become global players in the emerging industry, posing a competitive threat to traditional rivals.
Herbert Diess, the chief executive, seeks to cast VW as a dynamic, modern company, but his style risks the ire of its powerful works council.
Peter Rawlinson designed the Tesla S. His new Lucid Air sedan is a direct challenge to Tesla’s dominance.
The 2018 tweet, in which Mr. Musk claimed he had secured funding to take Tesla private, initially sent the automaker’s shares soaring. But they sank when it became clear that no such deal had been reached.
He asked whether he should sell 10 percent of his stock, and Twitter voters said yes. Stock options he was granted in 2012 are “a ticking tax time bomb,” one expert said.
Tuesday’s losses put Tesla’s stock down more than 11 percent this week.