The long-feared moment has arrived for workers at General Motors’ Oshawa Assembly Plant. After months of uncertainty, GM has confirmed it is cutting one of three shifts at the facility, a move that will leave more than 1,000 workers across the auto supply chain without jobs.
The layoffs are set to take effect by the end of the week. While GM says approximately 500 of those affected are its direct employees, union leaders estimate the total impact, including suppliers and contractors, could reach as high as 1,200 workers.
For many families in Oshawa, the news lands hard.
“This is heartbreaking,” said Jeff Gray, president of Unifor Local 222, which represents workers at the plant. “People are walking into work knowing it’s their last shift. That kind of uncertainty takes a real toll.”
Shift Reduction Hits Hard
GM confirmed the Oshawa plant will move from three shifts to two, citing operational changes as it prepares to build the next generation of gas-powered full-size pickup trucks.
Under union seniority rules, workers with more years of service will move into the remaining shifts, while lower-seniority employees across all shifts will be laid off.
Gray said the union worked for months to prevent this outcome, even presenting GM with a proposal to maintain the third shift until contract negotiations later this year. That plan, he said, was rejected.
Union Blames Trade Pressures
The layoffs come against the backdrop of growing trade tensions between Canada and the United States. Earlier this year, GM announced the shift cut shortly after former U.S. President Donald Trump imposed new tariffs targeting the auto sector.
While GM has not directly linked the layoffs to tariffs, Unifor National President Lana Payne was blunt in her assessment.
“GM has chosen to cave to U.S. pressure,” she said. “And Oshawa workers are paying the price.”
Adding to the frustration, GM is simultaneously adding 250 temporary jobs at its plant in Fort Wayne, Indiana, a facility that builds the same Chevrolet Silverado model as Oshawa.
Political Response and Worker Support
Ontario Premier Doug Ford said the province will support displaced workers through retraining and job placement programs, particularly in defence, life sciences, and advanced manufacturing.
“We’ll be there for them,” Ford said. “These workers deserve real opportunities to get back on their feet.”
Union leaders say retraining programs will be rolled out locally, including resume workshops and skills development sessions through worker action centres.
Still, many believe broader action is needed.
“This isn’t just about one plant,” Gray said. “Auto jobs across Ontario are disappearing. We need a serious national strategy.”
Oshawa’s Future at a Crossroads
Local leaders echoed that concern. Ontario NDP Leader Marit Stiles called for an urgent auto-sector plan, while Oshawa MPP Jennifer French said the city deserves long-term certainty, not temporary fixes.
“Oshawa built this industry,” French said. “If companies want to sell cars here, they should build them here too.”
As Canada prepares for critical trade talks under the Canada–U.S.–Mexico Agreement review, workers in Oshawa are left waiting, hopeful that the next chapter won’t mean more pink slips.
For now, the machines keep running. But for many, Friday’s shift will be the last.
