President Trump has threatened to double tariffs on Canadian-built vehicles to 50%, up from the current 25%, adding fresh turbulence to an automotive sector already battered by trade disputes.

The renewed trade friction between the U.S. and Canada has escalated further this week. Trump publicly stated, "We don't need Canada, they need us." However, the American auto industry holds a starkly different view.

If Trump follows through on his threat to raise tariffs on Canadian-made vehicles and parts to 50%, some of the most profitable products from Detroit's major automakers would face severe consequences. Stellantis produces the Chrysler Pacifica minivan at its Windsor, Ontario facility just across the border, General Motors builds pickup trucks at its Oshawa plant in Ontario, and Ford is set to begin production of F-Series heavy-duty pickups later this year at its Oakville facility near Toronto, complementing its Kentucky operations. Both Ford and General Motors manufacture engines in Canada that supply the pickup trucks and SUVs sold in the U.S. market.

Industry data from Omdia shows Canada ranks as America's second-largest trading partner, contributing 8% of total North American auto production in 2025. While this represents a decline from the 13% share seen a decade ago, as capacity and jobs have shifted toward Mexico and the U.S., Canada remains a significant producer of vehicles and components, a key consumer market for automobiles, and the largest export destination for American heavy-duty pickup trucks.

UBS analysts indicate that Toyota and Honda would be hit hardest by the tariff increase, with Canadian-built vehicles accounting for roughly one-tenth of both automakers' U.S. sales. According to sources familiar with automaker thinking, companies generally view Trump's January 1 effective date as an indication that the steep tariffs are more of a negotiation tactic than a concrete threat. Most firms plan to monitor talks before considering any adjustments to their production footprint. Ford, Stellantis, Honda, Toyota, and General Motors all declined to comment.

Yet the risks are tangible. Stephen Beatty, former vice president of Toyota's Canadian operations, noted that if Trump implements the tariffs, one of Canada's most potent countermeasures would be levying tariffs on American full-size pickup trucks like the Ford F-150. "Canada is not without retaliatory options," Beatty said. "One hopes it doesn't come to that."

Thomas Kowal, CEO of Michigan-based auto parts supplier Leggera Technologies, suggested the proposed tariffs could benefit his own company, which produces magnesium components that compete directly with Canadian aluminum parts. "But I'm more concerned about the broader manufacturing picture," Kowal said. After enduring the COVID-19 pandemic, inflation, and multiple rounds of tariff shocks, "I don't know how much additional pressure the entire industry can absorb."

The risk of doubled tariffs coincides with the review negotiations of the USMCA trade agreement, a trilateral pact critical to the daily operations of the U.S. auto industry. Matt Blunt, head of the American Automotive Policy Council representing General Motors, Ford, and Stellantis, stated: "We urge U.S. and Canadian negotiators to reach an agreement that enhances the competitiveness of the North American auto industry and successfully completes the USMCA review."

Since the start of Trump's second term, tariffs have already been imposed on Canadian steel and automobiles, prompting Canada to retaliate with duties on American-made vehicles and metal products. Vehicles and parts frequently cross borders multiple times during production, and Canadian-built vehicles and components currently face a 25% tariff with certain exemptions in place.

Amid the back-and-forth tariff volatility, Detroit automakers have been planning to increase their U.S. manufacturing investments. The Canadian auto workers' union said this month that Stellantis is considering selling a plant near Toronto, pressured by Trump's demands for companies to relocate production back to the U.S. However, shifting auto production across regions is neither quick nor easy. Reshoring manufacturing typically takes years, and the frequent policy swings leave companies facing significant uncertainty.

Barclays analyst Dan Levy wrote in a Monday research note that Canadian-built vehicles account for approximately 6% of U.S. auto sales, and a 50% vehicle tariff would be "theoretically manageable." But the core question is whether components compliant with USMCA rules would continue to enjoy tariff exemptions. "We see this as a source of enormous uncertainty," Levy added.

The U.S. refusal to renew the USMCA in July triggered the agreement's review process. Trump subsequently threatened 50% tariffs on $20 billion worth of Canadian goods, partly to pressure negotiations. Ford said last week that a deal was close, with Canadian auto tariffs potentially dropping to 15%. However, Canadian Prime Minister Mark Carney stated that talks have broken down: the U.S. has refused to grant tariff relief for medium and heavy-duty vehicles, a condition that, if met, would undermine the long-term competitiveness of Canada's auto industry.

Shawn Fain, president of the United Auto Workers (UAW), who originally supported Trump's current auto tariff policies, believes this particular threat against Canada is misguided and that trade pressure should instead target other countries. Fain said Tuesday: "If we're going to raise tariffs, the target should be countries where automakers continue to shift jobs abroad — places where workers earn $3 an hour, labor conditions are poor, and independent unions are suppressed."

Warren Brown, an industry consultant and former General Motors executive, said that if tariffs take effect, automakers will likely raise vehicle prices and various associated fees, potentially dampening auto sales next year. Brown noted in a Tuesday research report: "If this policy is implemented, both the U.S. and Canada will suffer significant losses."