General Motors’ Lansing Grand River plant in Michigan faces an uncertain production schedule as the automaker prepares to bring back the Cadillac CT5 for another generation powered by a combustion engine. Production of the current CT5 is expected to end in December 2026, while the next-generation sedan is reportedly scheduled to return in the second half of 2028, raising questions about how the factory will operate during the gap.
GM committed $1.25 billion in 2023 to retool the facility for electric vehicle production, but slowing EV demand has complicated that strategy. The company has not confirmed whether the plant will shut down entirely during the period between CT5 generations, leaving its near-term operations and the outlook for workers uncertain.
GM’s Lansing Plant Faces an 18-Month Production Gap
The Lansing Grand River plant has undergone shifting plans since GM announced its investment in EV manufacturing in 2023. The automaker later confirmed that the Cadillac CT5 would return for another generation with a combustion engine, changing the facility’s anticipated production direction.
If the reported timeline holds, the current-generation CT5 will leave the assembly line in December 2026, with production of its successor expected to resume in the second half of 2028. That would leave a gap of at least 18 months between production runs of the luxury midsize sedan.
The CT5 is the last remaining model assembled at Lansing Grand River following the discontinuation of the Cadillac CT4 and Chevrolet Camaro. With no other confirmed models currently identified for production at the facility, questions remain about what will happen after the CT5 leaves the line.
Why the Lansing Factory May Not Close Completely
According to GM Authority, the production gap does not necessarily mean the entire Lansing facility will shut down. GM has yet to explain how it plans to use the Michigan factory during the period between CT5 generations.
The plant is being prepared for the next-generation CT5 and could potentially accommodate a revived Chevrolet Camaro and a new Buick sedan. In the meantime, equipment testing and other manufacturing preparations could provide work at the facility even if vehicle assembly temporarily stops.
A similar approach has been used elsewhere in the automotive industry. Honda’s Marysville plant in Ohio continued producing gasoline-powered and hybrid vehicles while undergoing extensive retooling for EV manufacturing in 2024.
Could the CT5, Camaro and Buick Sedan Share a Platform?
The next-generation Cadillac CT5, a rumored new Buick sedan and a potential Chevrolet Camaro revival are all expected to use GM’s updated Alpha 2-2 platform.
The shared architecture could allow GM to distribute development and manufacturing costs across three models. The potential Camaro revival could also include a four-door configuration, although details about the proposed vehicle remain unconfirmed.
For Lansing Grand River, the possibility of producing multiple models could offer an alternative to relying on the CT5 alone. However, GM has not confirmed whether the rumored Buick sedan or revived Camaro will enter production at the plant.
GM Workers Face Potential Temporary Layoffs in 2027
A prolonged shutdown would leave Lansing Grand River without vehicle production until the next-generation CT5 arrives, potentially extending uncertainty for employees and local suppliers.
About 350 employees across Lansing Grand River Assembly and Lansing Regional Stamping are reportedly scheduled to be temporarily laid off beginning January 14, 2027. Affected workers may have opportunities to transfer to other GM facilities or receive supplemental unemployment benefits equal to 74% of their hourly wages.
The reported layoffs add to questions about how GM will manage the transition between production programs. The company has not confirmed whether the assembly plant will remain active throughout the entire period or how its operations will be organized during the gap.
EV Strategy Changes Could Shape Lansing’s Future
The period between CT5 generations could give GM an opportunity to reassess which vehicles should be built at Lansing Grand River as consumer preferences for gasoline-powered vehicles, hybrids and EVs continue to influence its manufacturing plans.
The automaker’s original $1.25 billion commitment to retool the plant for EV production came as it pursued a broader shift toward electric vehicles. Slowing demand has since made that strategy riskier, and GM has scaled back some of its EV plans.
For now, the Lansing Grand River plant’s future remains unsettled. The next-generation Cadillac CT5 is reportedly expected in the second half of 2028, but GM has yet to clarify how the factory will operate in the intervening months or whether additional models will be assigned to the facility.
