General Motors is shutting down its 480,000-square-foot battery assembly plant in Detroit, which used to supply high-voltage batteries for the Cadillac Celestiq EV and the Chevrolet Corvette E-Ray, as well as drive units for Chevy’s electrified two-door sports car.
The Brownstown Battery Assembly facility, which was opened in 2009, will be decommissioned by next summer when the lease ends, according to Automotive News, quoting a person familiar with the situation. General Motors confirmed the closure.
The exclusive and very expensive Cadillac Celestiq used to get its high-voltage batteries from Brownstown.
The move comes as the American automaker continues to absorb billions of dollars in losses associated with the shift in its powertrain strategy. While the company continues to build EVs, its attention has shifted to making more gas-powered vehicles. Earlier this year, GM exited a battery factory joint venture with Samsung SDI, leaving the Korean company in full control of the upcoming facility in Indiana. In 2024, the automaker pulled out of a $2.5 billion battery plant in Lansing, Michigan, leaving LG Energy Solution at the helm.
The Detroit factory’s employee count went from around 300 at its peak to less than a dozen when the company reduced output due to weaker-than-expected demand. Affected workers were notified earlier this year and have been offered jobs at other facilities in the area.
In addition to the battery plant closure, General Motors is also looking to give its shuttered hydrogen fuel cell facility in Detroit a new lease of life.
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