The company announced on June 1, 2006, that it would spend $332 million to expand production at Warren.

On April 5, 2010, GM announced it was adding 100 jobs to the Warren Transmission plant.

[2] On May 31, 2017, Warren Transmission announced that the second shift would be eliminated starting June 26, 2017.

[3] On March 20, 2020, at the height of the COVID-19 outbreak, GM announced that it would repurpose the former Warren Transmission factory for the production of face masks in order to help protect workers in essential services across the United States.

[4] In December 2021, GM would sell the 117-acre (470,000 m2) property to Northpoint Development for an undisclosed price.