GM to Close Brownstown Battery Assembly Plant in Detroit
The 480,000-square-foot facility, opened in 2009, will be decommissioned by next summer as GM shifts manufacturing focus.
General Motors is shutting down its Brownstown Battery Assembly plant in Detroit, a facility that previously produced high-voltage batteries and drive units for select electric and hybrid models. The closure marks the latest step in the automaker’s broader strategy to prioritize gas-powered vehicle production amidst significant financial losses in its electrification efforts.
What Happened
The 480,000-square-foot Brownstown facility, which opened in 2009, will be decommissioned by next summer when the current lease expires. According to Automotive News, which first reported the situation, General Motors has confirmed the closure. The plant was responsible for manufacturing battery packs for the Cadillac Celestiq and the Chevrolet Corvette E-Ray, as well as drive units for the Corvette E-Ray. At its peak, the facility employed approximately 300 workers, but staffing dropped to fewer than a dozen after output was reduced due to weaker-than-expected demand. Employees affected by the shutdown were notified earlier this year and have been offered positions at other facilities in the region.
Why It Matters
This decision underscores the significant financial strain GM is facing as it absorbs billions of dollars in losses related to its powertrain strategy shift. While the company continues to build EVs, its operational attention has moved toward internal combustion engine vehicles. This move follows GM’s exit from a battery factory joint venture with Samsung SDI earlier this year, which left the Korean partner in full control of the Indiana facility, and its withdrawal from a $2.5 billion battery plant project in Lansing, Michigan, in 2024. The industry-wide recalibration began after the expiration of the $7,500 federal tax credit, leading to a steep decline in EV sales. GM reported 25,472 EV sales in the United States during the third quarter, a sharp drop from 66,501 units sold in the same period the previous year, when buyers rushed to claim the now-canceled incentive.
The Bottom Line
GM is consolidating its manufacturing footprint by closing the Brownstown battery plant and reassessing the use of its shuttered hydrogen fuel cell facility in Detroit, which it recently took over from Piston Automotive. The automaker remains in a transition period, balancing continued EV production with a renewed focus on profitable gas-powered vehicles.
