Enlarge (credit: Aurich Lawson | Tesla | Airplane!)

Tesla filed its annual 10-K report with the Securities and Exchange Commission on Monday night, and the document confirms that, among the many open federal investigations into the company, the US Department of Justice is looking into the automaker's controversial driver assistance features.

In the section detailing "Certain Investigations and Other Matters," the 10-K briefly describes Tesla being subpoenaed by the SEC following CEO Elon Musk's tweets about taking the company private in 2018. That investigation led to a consent decree with the regulator but did not mark the end of the company's SEC headache; in February 2022, we reported that the SEC was investigating both Musk and his brother for potential insider trading.

"Separately, the company has received requests from the DOJ for documents related to Tesla’s Autopilot and FSD features," Tesla wrote.