U.S. Trade Expert Says Trump’s Canada Tariffs Are Hurting Detroit and American Automakers Too

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For decades, Detroit and southern Ontario have operated as two halves of one automotive powerhouse. Now, escalating tariffs threaten to turn that economic partnership into a costly disadvantage for manufacturers on both sides of the border.

Edward Alden, a senior fellow at the Council on Foreign Relations, is warning that President Donald Trump’s trade policies are hurting American businesses as well as Canadian exporters. After visiting Detroit and Toronto, Alden described an increasingly strained manufacturing relationship in which higher costs, disrupted supply chains and uncertainty are weakening American competitiveness.

His assessment raises an uncomfortable question for Washington: Can tariffs designed to protect American manufacturing end up making American automakers less competitive? With major tariff increases threatened for 2027 and negotiations over North America’s trade agreement unresolved, the consequences could extend well beyond the Canadian border.

Detroit’s Economic Warning Is Coming From an American Trade Expert

Edward Alden’s concerns carry particular weight because they are based on discussions in the industrial communities experiencing the consequences of the trade dispute. Alden, a senior fellow specializing in economic competitiveness and trade policy at the Council on Foreign Relations, recently accompanied a delegation examining economic ties between Detroit and Toronto. In an interview published by the National Post on November 5, 2026, he argued that Washington was overlooking the damage its tariff policies were inflicting on American manufacturing regions.

His central argument challenges the assumption that economic pressure on Canada automatically benefits the United States. Automotive production has become so interconnected that disrupting Canadian operations can increase costs for American factories relying on Canadian materials and components. Alden specifically identified Ford and General Motors as companies whose competitive positions were being weakened relative to international rivals. Rather than describing a dispute in which one country wins at the other’s expense, his assessment points to an industrial system in which both countries can lose.

Why the Canada-U.S. Border Is Part of the Automotive Assembly Line

A vehicle carrying an American brand name is not necessarily built entirely from American components. Engines, transmissions, electronic systems, steel stampings and other parts can move between factories in different countries before reaching final assembly. Over more than three decades, automakers have developed specialized North American production networks designed to reduce costs and maintain consistent manufacturing standards. Under the United States-Mexico-Canada Agreement (USMCA), qualifying passenger vehicles and light trucks generally must meet a 75% North American regional-value-content requirement. Crucially, that does not mean 75% of every vehicle must be manufactured in the United States.

This distinction explains why tariffs targeting Canada can create problems for factories in Michigan and other American manufacturing states. A Canadian-made component may already contain American materials, engineering and manufacturing work. When that component crosses back into the United States, tariffs can increase the cost of a product that American workers helped create. Global Affairs Canada has estimated that roughly 70% of Canadian exports to the United States are incorporated into American supply chains, a figure covering industries beyond automotive manufacturing. For an American assembly plant operating on carefully coordinated delivery schedules, finding a replacement supplier is rarely as simple as placing a different order.

Trump’s Tariff Threat Could Make an Already Expensive Situation Worse

The automotive industry is dealing with several overlapping trade measures, rather than one uniform tariff. The United States has maintained Section 232 duties on Canadian vehicle imports, with a headline rate of 25% and provisions that provide relief based on qualifying American content. Separate trade measures have imposed 50% duties on certain Canadian products, while steel and aluminum face their own tariff arrangements. These distinctions matter because not every Canadian-built vehicle entering the American market currently faces a 50% tariff. The actual cost depends on the product, its origin, its content and applicable trade provisions.

The uncertainty intensified on August 24, 2026, when Trump threatened to increase tariffs on Canadian vehicles and automotive parts to 50% beginning January 1, 2027. That proposed increase had not taken effect as of November 5. Reuters reported in late October that American and Canadian officials were discussing possible relief from existing steel and automotive tariffs, although significant disagreements remained. For manufacturers, even the possibility of higher duties creates complications. Production schedules, supplier contracts and vehicle pricing are often established months in advance. Executives must make expensive decisions without knowing which tariff arrangements will ultimately apply when vehicles reach customers.

Ford, General Motors and Stellantis Have Canadian Operations They Cannot Easily Replace

The Detroit Three have particularly strong reasons to worry about deteriorating trade relations. General Motors manufactures Chevrolet Silverado pickups in Oshawa, Ontario, while Stellantis assembles the Chrysler Pacifica in Windsor. Reuters reported in August that approximately 17% of Chevrolet Silverado production took place in Canada, based on Barclays research. Ford has also expanded its Canadian manufacturing presence, beginning shipments of Oakville-built Super Duty pickups to dealerships in October 2026. These operations are not isolated businesses competing against American plants; they are established components of the companies’ broader North American manufacturing strategies.

Moving production across the border would involve far more than changing a factory address. Automotive facilities require specialized equipment, trained employees, supplier relationships and extensive investment before they can manufacture vehicles at full scale. Ford’s Oakville conversion, for example, involved a multibillion-dollar investment and substantial retooling to accommodate Super Duty production. Meanwhile, GM has announced further investment and production plans for its Oshawa facility. These commitments demonstrate why manufacturers cannot instantly reorganize their operations whenever trade policies change. Tariffs can arrive with relatively little warning, but replacing an established vehicle assembly operation can require years of planning and considerable financial resources.

American Automakers Are Already Reporting Billions in Tariff Costs

The financial consequences of trade restrictions are showing up in automakers’ corporate disclosures. In its October 2026 earnings presentation, General Motors projected gross tariff costs near the lower end of its $2.5 billion to $3.5 billion forecast range for the full year. Stellantis provided another indication of the burden, estimating approximately €1 billion in net tariff costs for 2026, including €600 million incurred through September. These figures encompass broader trade measures and cannot be attributed entirely to Canada. Nevertheless, they demonstrate that tariffs have become significant financial considerations for major companies producing vehicles for American consumers.

The consequences extend beyond the immediate expense of paying import duties. Automakers must decide whether to absorb higher costs, negotiate price reductions with suppliers, reduce spending elsewhere or adjust vehicle prices. Each option involves trade-offs. Absorbing costs can weaken profit margins, while passing them along may make vehicles less attractive to buyers already struggling with affordability. Reducing expenditures can also affect investment decisions and future product development. Even manufacturers reporting healthy overall profits face competitive pressure when their production costs increase. That is especially important for Detroit companies attempting to defend market share against rivals operating under different international trade arrangements.

Foreign Automakers Are Not Facing the Same Tariff Calculations

Another concern for Detroit is that international competitors may benefit from more predictable or favourable trade arrangements. Reuters reported in August that negotiated agreements had established headline U.S. tariffs of approximately 15% on vehicle imports from Japan, South Korea and Europe. By comparison, Canadian and Mexican vehicle imports faced a headline rate of 25%, although qualifying American content could reduce the actual tariff burden. The comparison is not entirely straightforward because applicable duties vary by vehicle and origin. Nevertheless, the disparity has frustrated American automakers that invested heavily in regional production networks under decades of North American trade agreements.

The concern extends beyond Ford, GM and Stellantis. Japanese manufacturers Honda and Toyota also operate major Canadian assembly facilities supplying the American market. At an automotive conference in Detroit on October 27, American Honda executive Jennifer Thomas warned that higher Canadian tariffs could be catastrophic for the industry. She emphasized the importance of maintaining the three-country trade agreement for American manufacturing competitiveness. Her warning illustrates the broader problem: international automakers operating in North America also employ American workers, purchase American components and invest in American facilities. Disrupting regional production can therefore disadvantage businesses across the industry, regardless of where their corporate headquarters are located.

Canadian Steel and Aluminum Are Essential to American Manufacturing

The automotive industry’s exposure goes well beyond finished vehicles. Steel and aluminum tariffs have created additional pressure for manufacturers that need a dependable supply of raw materials. These metals are used in everything from structural components and body panels to wheels and lightweight vehicle designs. Canada is particularly important as a supplier of primary aluminum, supported by large smelting operations and substantial hydroelectric resources. The Aluminum Association, representing American producers and related businesses, has identified Canada as a critical source of primary aluminum for the United States, accounting for roughly 70% of American primary aluminum imports in its 2025 assessment.

The scale of American dependence becomes clearer when examining domestic supply. In September 2026, Alcoa’s chief financial officer estimated that the United States needed to import approximately four million metric tons of aluminum annually, with Canada capable of supplying around three million tons. Tariffs can support some domestic producers by protecting them from foreign competition, but they can also raise expenses for manufacturers purchasing the metal. American automotive suppliers cannot necessarily replace Canadian aluminum with domestically produced material at comparable prices or quantities. Consequently, even a vehicle assembled entirely within the United States may become more expensive to manufacture when cross-border material costs increase.

Canadian Buyers Are Purchasing a Smaller Share of American-Made Vehicles

The financial consequences are not limited to what American manufacturers pay for Canadian components. They also involve lost opportunities to sell American-built vehicles in Canada. According to J.D. Power Canada data reported by automotive publications, U.S.-assembled vehicles represented 28.4% of Canadian new-vehicle sales during the first half of 2026, down from 35.4% during the same period in 2025. Meanwhile, Mexico’s share increased from 18.3% to 22.2%, with Japan also gaining ground. These figures illustrate a notable shift in where vehicles purchased by Canadian consumers are being manufactured.

Although tariffs have contributed to changes in vehicle sourcing, the figures do not establish that every lost American sale resulted directly from trade policy or consumer boycotts. Product availability, pricing and manufacturers’ decisions also affect market share. Nevertheless, Canada’s retaliatory tariff system has increased the cost of certain U.S.-made vehicles and American content entering its market, subject to applicable relief measures. For manufacturers, that creates an incentive to supply Canadian dealerships from factories in countries facing fewer trade barriers. A vehicle previously shipped from an American plant might instead arrive from Mexico or Japan. Such adjustments can protect automakers’ Canadian sales while reducing production opportunities for American factories and their workers.

Higher Manufacturing Costs Are Reaching an Already Expensive Vehicle Market

American consumers are facing these trade pressures at a time when new vehicles are already expensive. Kelley Blue Book reported that the average transaction price of a new vehicle in the United States reached $50,562 in September 2026, only $52 below the record established in December 2025. Separate Cox Automotive affordability research put the typical monthly new-vehicle payment at approximately $776. Those figures cannot be blamed entirely on tariffs. Vehicle specifications, financing costs, inventory conditions and changing consumer preferences also influence what buyers pay. However, they demonstrate how little additional financial pressure many households are prepared to absorb.

Economic research explains why tariffs can eventually affect prices even when a finished vehicle is assembled domestically. A Federal Reserve Bank of New York study, revised in September 2026, estimated that approximately 26% of tariff increases were passed through to consumer prices across the goods examined. Some indirect effects took nine to twelve months to develop through supply chains. That estimate is not specific to automobiles, but the underlying mechanism is relevant to automotive manufacturing. Higher input costs can eventually produce more expensive vehicles, fewer discounts or reduced availability of certain models. Consumers may respond by delaying purchases, which can create additional pressure for dealerships, manufacturers and automotive workers.

American Border Communities Are Losing More Than Manufacturing Business

The economic damage identified by Alden extends beyond automotive production. Communities along the Canada-U.S. border also depend on Canadian visitors spending money at restaurants, hotels, shopping centres and local businesses. Statistics Canada reported that Canadian return crossings from the United States declined 25.4% in 2025 compared with 2024. Some travel has subsequently recovered, but the gap remains substantial. In September 2026, automobile return trips were 5.6% higher than a year earlier, yet still 31.1% below September 2024 levels. That recovery from a weak previous year does not erase the larger reduction in cross-border activity.

The consequences can be especially significant in communities where Canadian customers have traditionally been part of everyday commercial life. ProPublica reported that reduced border crossings were associated with an estimated $82.9 million in lost local spending around Sault Ste. Marie in 2025, including approximately $62.7 million on the Michigan side. Such losses cannot all be attributed directly to tariffs, but worsening trade relations have contributed to the broader decline in cross-border confidence and travel. Alden observed that reduced Canadian visits were affecting American communities in Michigan and Washington state. For a border-town business owner, the impact may be less about international trade policy than the disappearance of customers who previously crossed the border without giving it a second thought.

The Next North American Trade Negotiations Could Determine Who Pays the Price

The immediate question is whether Washington and Ottawa can reach an agreement before the threatened January 2027 tariff escalation. There is also a longer-term challenge involving the future of the United States-Mexico-Canada Agreement. During the mandatory July 1, 2026, review, the United States declined to extend the agreement for another 16-year term. That decision did not terminate the existing trade pact, which remains legally in force. Instead, it established a process of annual reviews beginning in 2027, with the current agreement scheduled to expire in 2036 unless the participating governments reach an extension agreement or take other action.

Recent diplomatic developments suggest negotiations are not necessarily at a dead end. On November 3, Trump expressed confidence that a Canadian trade agreement was approaching, while Prime Minister Mark Carney acknowledged progress but emphasized that important work remained unfinished. Alden has similarly cautioned against assuming a breakthrough is imminent. His preferred indicators of progress include meaningful tariff relief and renewed commitment to a functional North American trading system. Washington argues that tougher trade rules can protect domestic industry and address trade imbalances, but its approach also creates costs for American manufacturers. Ultimately, the challenge is finding an arrangement that strengthens industrial production without undermining the established regional networks that make Detroit and its suppliers competitive.

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