Ontario’s automotive sector is steeling itself for a rough ride after U.S. President Donald Trump’s 25 per cent tariff barrage hit Canadian goods on March 4, jolting an industry that’s a cornerstone of the province’s economy.
The province estimates that vehicle assembly and parts production sustain nearly 100,000 direct jobs, with countless more tied to spinoffs rippling through Ontario communities. The supply chain is a sprawling network of over 700 parts companies and 500 tool, die, and mold makers. According to the Canadian Vehicle Manufacturers’ Association, vehicles rank as Canada’s second-biggest export, valued at $51 billion in 2023—with 93 per cent shipped south to the U.S.
“These U.S. tariffs, rolled out today, threaten to fracture the tightly knit North American auto industry,” said Brian Kingston, president and CEO of the Canadian Vehicle Manufacturers’ Association, in a statement. “Six decades of integration have built a world-class automotive hub across the U.S., Canada, and Mexico. These tariffs will unravel that, dragging down economies on all sides. We need them gone—now.”
Lana Payne, Unifor’s national president, didn’t mince words: “Trump’s been taunting us for months, choking investment and jobs. Now he’s pulled the trigger on a full-blown trade war. Every Canadian—politicians, CEOs, workers, families—has to push back.” She warned of pricier goods, job losses, and a gut punch to integrated sectors like auto manufacturing across the border. “Trump’s underestimated Canadians—and the blowback he’ll face from his own people,” Payne added. “Our trade ties with the U.S. shifted forever today. It’s time to double down on ourselves, rethink global trade, and forge a tougher economy.”
Honda Shifts Gears
Reuters reports that Honda has scrapped plans to build its Civic hybrid in Mexico by 2027, opting for Indiana instead to dodge tariff risks. Rising costs had already strained production in Indiana and Canada, but Trump’s tariff threats tipped the scales. In Ontario, Honda’s New Tecumseth plant—home to Civic, CR-V, and engine production since 1986—got a $131.6-million boost from federal and provincial coffers in 2022 to gear up for hybrids. “We’re sizing up these tariffs’ full impact, but no snap moves are coming for our Canadian operations or electrification goals,” said Laura Heasman, Honda Canada’s senior communications manager. “Our 4,000-plus workers and decades-long footprint here are our priority. With flexible North American production, we’re ready to adapt.”
Stellantis Stumbles
Stellantis hit pause on its Brampton Assembly Plant in February, despite government funding to retool for next-gen electric and gas Jeep models. “We’re still betting on production here, but banking on a Q4 2025 restart feels like a stretch,” said Vito Beato, president of Unifor Local 1285, in a February release. “We need straight talk on timelines and safeguards for our members’ livelihoods.” Unifor represents over 8,000 Stellantis workers across Canada, including at Windsor, Brampton, Etobicoke, and Mississauga plants. Recent layoffs at Brampton, tied to the February halt, have sharpened worries. “Stellantis says production’s still on, but the timing’s got our members—on the line and laid off—on edge,” Payne said.
GM’s Cross-Border Crunch
The Financial Times notes that of last year’s 673,000 Chevrolet Silverados, 31 per cent rolled out of GM’s Silao, Mexico plant, and 20 per cent from Oshawa, Ontario. U.S. plants in Michigan and Indiana pitch in, but parts like power steering and door trim hail from Mexico, rear lights from Canada, and airbags from Germany. BNN Bloomberg pegs GM’s Canadian workforce at 8,000, with 294,000 vehicles sold domestically last year. In February, 79 unionized workers at Ingersoll’s CAMI Assembly—makers of Chevrolet BrightDrop vans—were let go.
Toyota Stays the Course
Toyota Canada, a 60-year veteran, signaled resilience. Producing Lexus RX, NX, and Toyota RAV4 models here, it’s not flinching yet. “Our 8,500 team members built over 533,000 vehicles last year, keeping us Canada’s top automaker,” said CEO Cyril Dimitris. “Challenges ahead won’t shake us—we’re here to keep Canadians moving sustainably and lift our communities.” Toyota’s eyeing new models, like the next-gen 4Runner unveiled at the 2025 Canadian International Auto Show, staying “locked on what Canadians need.”