(Reuters) - The U.S. Department of Justice has demanded documents related to the transmission used in about 2 million of Ford Motor Co's <F.N> Fiesta and Focus vehicles sold throughout this decade, the Detroit Free Press reported on Wednesday.

The newspaper obtained a subpoena issued in April in Case No. 126 before a District of Columbia grand jury requesting "all documents, communications and electronically stored information" relating to the company's actions involving the DPS6 PowerShift transmission dating back to 2010, the report said. [https://bit.ly/33n2vSp]

A Ford spokesman told Reuters that it has cooperated with the National Highway Traffic Safety Administration (NHTSA) as to DPS6-related issues beginning in 2014.

The automaker has taken a number of actions to enhance transmission performance, including extending warranties for customers from between five years/60,000 miles and seven years/100,000 miles, the spokesman added.

(Reporting by Dominic Roshan K.L. in Bengaluru; Editing by Shailesh Kuber)