The plant has sat idle since 2023. That fall, Stellantis announced it would invest nearly $5 billion in the factory, including an electric vehicle battery plant and a parts distribution hub.

Stellantis announced plans in 2022 for a first battery plant in the city where it already has powertrain and transmission production. It was expected to spend at least $2.5 billion on the 33 ...

The 1,200-worker plant, Kokomo Casting, is the world's largest die cast facility, according to Stellantis. It makes aluminum parts for components including transmissions and engine blocks.

The Sterling Heights Assembly Plant is where Stellantis − the company that owns Chrysler, Dodge, Jeep, Ram and Fiat − produces the Ram 1500 truck.

In a June 5 letter to union members, the head of the United Auto Workers Stellantis Department said the union was “pressing the company to finish their retooling” at the Dundee Engine Complex ...