A regulatory filing says officials have asked about software that Elon Musk, the chief executive, has said would allow cars to operate autonomously.
Aiming to make a million electric vehicles a year by 2025, General Motors is investing in a Nevada lithium mine to help with battery production.
The automaker reduced the price of the Mustang Mach-E by up to $5,900 after Tesla slashed prices of its cars by as much as 20 percent.
Seeking deeper cooperation on electric cars, the automakers said they would resolve a yearslong dispute that became the backdrop to Carlos Ghosn’s downfall.
Akio Toyoda, who has been reluctant to embrace all-electric vehicles, will be succeeded as C.E.O. by a Lexus executive.
Shares in the electric carmaker continued to rally after the company reported strong profits, even amid growing competition and economic pressures.
The electric car company is facing intensifying competition, supply chain disruptions and concerns about the behavior of Elon Musk.
Countries are pursuing new solutions to try to mitigate climate change. More trade fights are likely to come hand in hand.
The $3.6 billion investment, which also includes a new battery factory, presents a challenge to traditional truck makers that have been slow to sell electric vehicles.
Under questioning, Mr. Musk said he hadn’t discussed how much money investors would put in to help him take his car company private.