General Motors is shutting down its U.S. battery assembly facility in Detroit.

General Motors is closing its battery assembly plant in Michigan. The Brownstown Battery Assembly Plant was responsible for assembling battery packs for Cadillac’s electric flagship model, the Celestiq, as well as electric motors and batteries for the plug-in hybrid Chevrolet Corvette E-Ray.

The Cadillac Celestiq received its batteries from the Brownstown Battery Assembly Plant.

Image: Cadillac

A company spokesperson confirmed the closure to TechCrunch. However, it is said to have no connection to GM’s electric vehicle strategy. Instead, GM leased the facility, and according to the spokesperson, the lease agreement was nearing its expiration. The employees and production at Brownstown are now set to be transferred to other GM plants. “Automotive News” was the first to report on the closure.

It is clear that with U.S. President Donald Trump’s second term, the electric vehicle industry in the U.S. is developing much more slowly than expected. This also affects General Motors’ previously outlined electrification plans. Just three weeks ago, for example, it was revealed that General Motors now intends to produce significantly fewer units of the new Chevrolet Bolt than originally planned. According to Reuters, production will reach only around 35,000 vehicles by the end of the model’s life in the first quarter of 2027, instead of the originally planned approximately 150,000. It has been known since early this year that the new Bolt would have only a short market presence. GM positioned the model as a limited run from the start and announced that production would end in 2027. What is new now is the significantly lower production volume.

This production cut, along with the recently announced closure of the battery assembly plant south of Detroit, is just one of many examples of GM’s restructuring of its electric vehicle strategy. After the U.S. $7,500 purchase incentive ended in September 2025, sales of battery-electric vehicles dropped significantly. Meanwhile, GM has realigned several of its factories to focus more on internal combustion engine vehicles.

Financially, this has meant tough times: According to Reuters, the company has recorded total losses of $10.9 billion related to its electric vehicle business since the second quarter of 2025. Although GM continues to produce around a dozen electric vehicle models, it has adjusted its original expansion plans several times recently.