A potential breakthrough in North American trade negotiations has encountered another major obstacle, raising fresh concerns for Canada’s automotive industry and the future of continental manufacturing.
U.S. Commerce Secretary Howard Lutnick has reportedly opposed significant reductions in the 25% tariffs on Mexican automobiles, along with 50% duties on steel and aluminum, complicating negotiations that had been moving toward an agreement.
The development, reported by The Wall Street Journal on October 15, 2026, comes as President Donald Trump’s administration continues pushing for changes to the Canada-United States-Mexico Agreement, known in Canada as CUSMA.
Although American and Mexican officials maintain that discussions are continuing, the disagreement threatens to delay a deal that could have helped establish a path toward broader North American trade stability. For Canada, the stakes include manufacturing jobs, investment decisions, and the competitiveness of its automotive supply chain.
Lutnick’s Opposition Stalls a Potential U.S.-Mexico Trade Breakthrough
U.S. and Mexican negotiators had reportedly been approaching an agreement that would reduce American tariffs on automobiles, steel, and aluminum in exchange for concessions from Mexico. However, progress slowed after Commerce Secretary Howard Lutnick resisted significant reductions in several of the most economically important duties. According to The Wall Street Journal, citing people familiar with the negotiations, Lutnick opposed substantially lowering the 25% tariff on Mexican-made vehicles and the 50% duties affecting steel and aluminum. He also objected to proposed relief for finished products made from those metals.
The disagreement is significant because the proposed agreement could have created momentum for broader discussions about CUSMA’s future. Still, the reported opposition should not be confused with a formal announcement that negotiations have ended or that every proposed concession has been rejected. Mexico’s deputy trade minister, Luis Rosendo Gutiérrez, has maintained that progress is being made, while a U.S. Commerce Department spokesperson said officials remain in continuous dialogue. For manufacturers hoping to finalize production and investment plans, however, the renewed uncertainty represents another setback in an already difficult year.
The 25% Mexican Auto Tariff Has Important Exceptions
The 25% U.S. automotive tariff originated in an April 2025 measure introduced under Section 232 of the Trade Expansion Act, which allows restrictions on imports considered threats to national security. However, the headline rate does not necessarily apply to the entire value of every Mexican-built vehicle. Automobiles qualifying for preferential treatment under CUSMA can receive special consideration for their American-made content. Under the original tariff framework, manufacturers could seek approval to have the duty calculated only on the value of a vehicle’s non-U.S. components.
This distinction is crucial for automakers operating interconnected factories across North America. A vehicle assembled in Mexico may contain engines, transmissions, electronics, or other components produced in the United States. Manufacturers must document eligible U.S. content to obtain the applicable tariff treatment, creating additional administrative responsibilities. The system also means that the effective cost of the tariff varies depending on individual vehicle designs and sourcing arrangements. For Canadian manufacturers, any change to these calculations could have consequences beyond Mexico because similar content-based arrangements affect Canadian-built vehicles entering the American market.
Steel and Aluminum Tariffs Create Another Major Obstacle
The disagreement extends beyond finished automobiles to two materials essential for vehicle manufacturing. Lutnick has reportedly opposed significant reductions in the 50% U.S. tariffs on steel and aluminum, as well as proposed relief for derivative products manufactured from those metals. These duties are particularly significant because automotive companies purchase enormous quantities of processed metal for body panels, structural components, wheels, engine parts, and other equipment. Higher import costs can affect businesses throughout the supply chain, including manufacturers located inside the United States that depend on foreign materials.
Canada has already experienced the consequences of escalating metal tariffs. Following additional American duties announced during the summer, Ottawa introduced countermeasures on approximately C$27.6 billion worth of U.S. imports beginning September 8, 2026. The Canadian measures include tariff rates of 15%, 25%, and 50%, depending on the products involved. Some steel and aluminum counter-tariffs increased from 25% to 50%. This retaliation demonstrates how restrictions intended to support domestic manufacturing can trigger reciprocal measures, potentially raising costs for businesses on both sides of the border.
Mexico’s Negotiations Involve Much More Than Automobile Tariffs
Mexico’s government has spent months seeking tariff relief while responding to a growing list of American trade demands. Economy Minister Marcelo Ebrard met with Lutnick in September to discuss automotive and steel duties, and Mexican officials have repeatedly identified Section 232 tariffs as a priority. Deputy Trade Minister Luis Rosendo Gutiérrez reported that the negotiating agenda had expanded from 54 issues to nearly 90, reflecting the complexity of discussions involving manufacturing, investment, and regulation. The fourth formal negotiating round, initially expected around the end of September, was postponed, although technical discussions continued.
The Trump administration has also pursued concessions outside the automotive industry. Recent reporting indicates that Washington has encouraged Mexico to expand energy cooperation with American companies and increase purchases of U.S. natural gas. Mexico faces difficult choices because its government places considerable importance on national control of energy resources. For President Claudia Sheinbaum’s administration, obtaining lower automotive tariffs without making politically unacceptable concessions presents a substantial negotiating challenge. The latest disagreement suggests that even progress on individual issues may not produce an agreement unless American officials accept the proposed reductions in tariffs.
CUSMA Remains in Force Despite Washington’s Refusal to Renew It
The latest dispute has become particularly important because CUSMA is already undergoing a contentious review process. The agreement entered into force on July 1, 2020, replacing the original North American Free Trade Agreement. Its first six-year joint review took place on July 1, 2026, when representatives from Canada, Mexico, and the United States discussed the arrangement’s future. The American government declined to extend the agreement for another 16-year term, arguing that existing provisions required changes. However, that decision did not automatically terminate the trade agreement.
Under CUSMA’s review mechanism, the three countries can continue annual discussions until they agree on an extension or the existing agreement reaches its scheduled expiry in 2036. The U.S. Trade Representative has already begun preparations for the 2027 review, with public comments due by January 12, 2027. This creates an important distinction between a trade agreement that has not been extended and one that has legally expired. For Canadian businesses, the existing rules still provide an essential framework, but unresolved negotiations make long-term production commitments more difficult.
Canada’s Own Tariff Negotiations Collapsed Earlier This Year
Canada has already experienced the difficulty of negotiating automotive tariff relief with Washington. In August, Canadian and American officials were reportedly approaching an agreement that would have reduced the top-line U.S. tariff on Canadian cars and light trucks from 25% to 15%. Proposed relief for steel and aluminum would have lowered those duties from 50% to 25%. However, negotiations collapsed amid disagreements over several issues, including whether reductions would extend to medium- and heavy-duty trucks. The failed agreement left Canadian automakers facing substantially more uncertainty about their future access to the American market.
President Trump subsequently threatened to increase tariffs on Canadian automobiles, trucks, and automotive parts to 50% beginning January 1, 2027. That proposed increase must be distinguished from tariffs already in force and from separate 50% duties affecting certain Canadian goods. Prime Minister Mark Carney maintained that a mutually beneficial agreement remained possible but emphasized that Canada’s sovereignty must be respected. Ottawa’s decision to suspend negotiations was followed by additional retaliatory measures and support initiatives for affected businesses. The renewed difficulties in U.S.-Mexico discussions suggest that securing concessions from Washington remains challenging for both of America’s northern and southern neighbours.
Canada’s Automotive Industry Depends Heavily on Continental Trade
Canada’s automotive industry is especially vulnerable to disagreements involving the United States and Mexico because manufacturing operations are deeply interconnected. According to the federal government, Canada produced more than 1.2 million passenger vehicles in 2025. More than 90% of Canadian-made vehicles and approximately 60% of domestically manufactured auto parts are exported to the United States. These figures demonstrate how dependent Canadian assembly plants and component suppliers remain on predictable access to the American market. Even a seemingly bilateral dispute involving Mexico can influence the conditions under which Canadian manufacturers compete.
CUSMA was designed to support this integration through rules requiring substantial North American content. Passenger vehicles and light trucks generally must meet a 75% regional value-content threshold to qualify under the automotive rules, alongside other requirements. The agreement also contains labour-value provisions intended to encourage higher-wage production. Canadian-Mexican automotive trade continues to receive duty-free treatment under CUSMA, according to Ottawa. However, a separate U.S.-Mexico tariff arrangement would not automatically grant Canada identical relief. This raises the possibility of different costs and incentives for manufacturers operating across the same three-country production network.
Ontario’s Automotive Workers Face the Greatest Employment Risks
The consequences of prolonged trade uncertainty are particularly significant for Ontario, where Canada’s major vehicle assembly operations and much of its automotive supply network are concentrated. The federal government estimates that Canada’s automotive manufacturing sector supports approximately 125,000 direct jobs, while the broader industry supports more than 500,000 workers. Statistics Canada found that 76.4% of payroll jobs in automobile and light-duty vehicle manufacturing were supported by American demand in 2024. This illustrates why trade negotiations conducted in Washington can have immediate significance for workers in communities such as Windsor, Oshawa, Alliston, Cambridge, and Woodstock.
Canadian factories have already faced production challenges. TD Economics reported that Canadian vehicle production declined 5.4% in 2025, while General Motors reduced shifts at its Oshawa operation and Stellantis’ Brampton facility remained idle amid restructuring and tariff pressures. These developments cannot all be attributed exclusively to American trade policy, since manufacturers also face changing demand and technological transitions. Nevertheless, continued uncertainty over market access may discourage companies from assigning new vehicle programs to Canadian plants. For workers and their families, those decisions ultimately determine whether manufacturing jobs remain available in their communities.
American Automakers and Car Buyers Also Face Higher Costs
The effects of automotive tariffs are not limited to manufacturers operating outside the United States. American companies depend heavily on Canadian and Mexican facilities for complete vehicles and essential components. Reuters reported in August that approximately 17% of General Motors’ Chevrolet Silverado pickup production was based in Canada, while Stellantis manufactured the Chrysler Pacifica at its Canadian operation. Canadian-built vehicles accounted for approximately 6% of American vehicle sales in 2025. Although that percentage appears relatively small, the vehicles involved include commercially important models and support extensive cross-border supply networks.
Tariffs can also increase costs for vehicles assembled inside the United States when factories depend on imported steel, aluminum, and automotive parts. Manufacturers may absorb some expenses, negotiate lower supplier prices, adjust production arrangements, or pass costs to consumers. The outcome varies by model and company, making it inaccurate to assume every vehicle becomes 25% more expensive. The Trump administration argues that tariffs encourage domestic manufacturing investment and protect American jobs. However, industry analysts have warned that abrupt policy changes can raise costs without producing an equivalent increase in new factories, particularly because major automotive investments require years of planning.
The Next Trade Decisions Could Reshape North American Auto Manufacturing
The immediate question is whether Washington and Mexico can overcome the disagreements reportedly involving Lutnick and resume progress toward a tariff agreement. Officials have not announced a completed deal, but neither side has declared negotiations permanently abandoned. Any breakthrough would need to address automotive duties, steel and aluminum restrictions, and the concessions being requested from Mexico. Even then, Canada would still need to negotiate its own position, since a bilateral agreement would not automatically resolve outstanding disputes between Ottawa and Washington. The challenge is to preserve the benefits of an integrated regional industry while accommodating the Trump administration’s demands for greater American manufacturing.
Several upcoming milestones will be important. Trump’s threatened 50% tariffs on Canadian vehicles are scheduled for January 1, 2027, unless the administration changes course. The American government is also collecting comments for the next CUSMA review, with submissions due January 12. Meanwhile, Canada has committed up to C$3 billion through its Strategic Response Fund to support automotive investment and adaptation, alongside additional regional assistance. For Canadian manufacturers, workers, and consumers, the outcome remains uncertain. The latest breakdown suggests that even well-advanced negotiations can encounter political resistance, leaving North America’s automotive future dependent on decisions that have yet to be finalized.
