Orion Assembly is an automotive assembly plant in Orion Township, Michigan, United States, owned and operated by General Motors. Starting in early 2027, the plant is slated to assemble the light-duty versions of the Chevrolet Silverado and GMC Sierra pickup trucks, as well as the Cadillac Escalade for the U.S. market. Opened in 1983, Orion Assembly assumed operations of Buick City in Flint, and Pontiac Assembly. The 4,300,000 sq ft (400,000 m2) plant had approximately 1,032 salaried and hourly employees as of September 2019.