Canada’s automotive industry faces another critical turning point as Conservative Leader Pierre Poilievre travels to Detroit to push for a tariff-free manufacturing agreement with the United States. Speaking in Windsor on October 13, 2026, Poilievre warned that the escalating trade dispute is threatening investment, employment, and production on both sides of the border. His visit comes as U.S. President Donald Trump threatens to increase tariffs on Canadian-made vehicles from 25% to 50% beginning January 1, 2027. The proposed increase could have serious consequences for Ontario’s automotive manufacturing communities, where factories depend heavily on American customers and integrated North American supply chains. With negotiations between Ottawa and Washington stalled, Poilievre is seeking support from American manufacturers, workers, and political leaders for an agreement intended to restore tariff-free vehicle trade.
Poilievre Returns to Detroit With a New Urgency Over Auto Jobs
Pierre Poilievre began his October 13 visit with a news conference at Dieppe Gardens along Windsor’s waterfront, arriving in a locally manufactured Chrysler Pacifica. The setting carried considerable symbolism. Across the Detroit River lies one of North America’s most important automotive manufacturing regions, connected to Windsor through decades of industrial investment and shared production. Poilievre had travelled to Michigan in March to discuss a similar proposal, but he said the trade situation had deteriorated significantly in the intervening months. The prospect of another major tariff increase, he argued, was discouraging investment decisions in Canada.
The Conservative leader travelled with Windsor-area MPs Kathy Borrelli, Chris Lewis, Harb Gill, and David Epp. His itinerary included discussions with representatives of General Motors, officials at Ford’s Rouge manufacturing complex in Dearborn, and members of the International Brotherhood of Electrical Workers. He also appeared on CNN to promote closer economic cooperation. His central argument was that the trade conflict was weakening both countries while benefiting international competitors. The visit was an effort to build support for a proposal, not an announcement that either government had accepted a new agreement.
Trump’s Proposed 50% Tariff Could Arrive on January 1, 2027
The immediate concern for Canadian automakers is the possibility that existing U.S. vehicle tariffs could double. Since April 2025, the United States has maintained a 25% Section 232 tariff on imported passenger vehicles and light trucks, although vehicles meeting CUSMA requirements can receive an exemption for their U.S.-origin content. In August 2026, Trump threatened to raise tariffs on Canadian-made vehicles, automotive parts, and steel to 50% beginning January 1, 2027. The announcement followed the collapse of another round of Canada-U.S. trade negotiations and intensified uncertainty for manufacturers with factories in Ontario.
The distinction between an existing tariff and a threatened increase is important. The proposed January 2027 escalation was not yet a blanket 50% vehicle tariff in force as of October 13. Exact costs would also depend on the final rules, vehicle classification, and treatment of eligible North American content. Nevertheless, automakers making decisions about future production cannot ignore the possibility of substantially higher import costs. Factory investments often involve years of planning, expensive equipment, and long supplier contracts. Even uncertainty about future tariffs can influence where companies choose to manufacture their next generation of vehicles.
The Proposed Auto Pact Would Tie Vehicle Sales to Canadian Production
The centrepiece of Poilievre’s proposal is a new arrangement linking duty-free vehicle sales to domestic manufacturing. Under the Conservative plan introduced in March 2026, an automaker producing vehicles in Canada would receive corresponding permission to sell vehicles manufactured in the United States or Mexico in the Canadian market without tariffs. The arrangement would operate on a dollar-for-dollar basis, borrowing principles from the original Canada-U.S. Auto Pact established in 1965. The objective is to encourage manufacturers to maintain Canadian factories rather than concentrating additional production south of the border.
Poilievre has suggested that his framework could increase Canadian vehicle production by approximately 500,000 to 800,000 units over ten years. That is a political projection, not an independently established outcome. His proposal also calls for retaining CUSMA’s automotive rules of origin, including the requirement for at least 75% North American regional content in qualifying passenger vehicles. Supporters argue that production-linked market access could create incentives for new assembly investment. Critics question whether the proposed formula reflects today’s global automotive industry, where manufacturers sell vehicles from factories across several continents.
Removing the GST on Canadian-Made Cars Is Another Conservative Proposal
Poilievre is also proposing a consumer incentive designed to encourage Canadians to purchase vehicles assembled domestically. Under his plan, the federal goods and services tax would be removed from qualifying Canadian-made vehicles, eliminating the 5% GST component of the purchase price. At the Windsor news conference, he argued that the change could encourage production of approximately 30,000 additional vehicles in Canada. The measure is intended to reward domestic manufacturing while giving consumers a financial reason to consider vehicles produced by Canadian workers.
The proposal also includes eliminating federal electric vehicle purchase subsidies and aligning Canadian vehicle emissions policies more closely with those of the United States. However, Ottawa’s policies have already changed since the Conservatives first outlined their plan. In February, the Carney government announced that it would repeal the previous Electric Vehicle Availability Standard and replace it with stronger vehicle greenhouse gas emissions requirements. It also introduced a new five-year EV affordability program offering eligible purchasers incentives of up to $5,000. The competing approaches therefore differ less over whether regulations should change than over which consumer incentives and emissions policies best support Canadian manufacturing.
Ontario’s Auto Industry Depends on American Customers and Components
The scale of Ontario’s dependence on the American market explains why the tariff dispute is particularly serious. According to the federal government, more than 90% of Canadian-made vehicles are exported to the United States, along with approximately 60% of domestically manufactured automotive parts. In 2025, Canada produced more than 1.2 million passenger vehicles. The broader automotive industry supports more than 500,000 Canadian workers, including approximately 125,000 direct jobs, and contributes over $16 billion annually to the national economy. Much of that activity is concentrated in southern Ontario.
The industry’s manufacturing network stretches from Windsor and Oshawa to Alliston, Cambridge, Woodstock, and Oakville. Vehicles assembled in Ontario frequently contain components produced in American factories, while Canadian suppliers provide parts used in vehicles assembled across the border. Federal regulatory documents indicate that approximately half the value of Canadian-built vehicles exported to the United States comes from American parts. This integration makes tariffs unusually disruptive because costs can affect both the finished vehicle and the wider supplier network. Redirecting production toward overseas buyers is difficult when factories have been designed primarily around North American consumer demand and regulatory requirements.
Windsor Shutdowns and GM Investments Reveal a Divided Manufacturing Outlook
The effects of the trade dispute are already visible at Ontario factories. Stellantis has scheduled another three-week production shutdown at its Windsor Assembly Plant, covering the weeks of October 19, October 26, and November 2. Unifor Local 444 reported that the company cited tariffs and production volumes as contributing factors. The shutdown comes amid difficult collective bargaining negotiations, with union members preparing for strike authorization votes on October 17 and 18. A favourable vote would permit union leaders to call a strike if legally entitled to do so, but would not automatically trigger a walkout.
General Motors has announced a more encouraging investment package elsewhere in Ontario. Following ratification of new labour agreements in August, GM confirmed approximately C$1.4 billion in planned and previously announced investments across Oshawa and St. Catharines over three years. The commitments include C$144 million to add next-generation GMC Sierra Heavy-Duty production in Oshawa and C$215 million for transmission production in St. Catharines. However, GM’s CAMI plant in Ingersoll remains idled, with extended layoff benefits while the company assesses future opportunities. Together, these developments demonstrate how differently individual plants are experiencing the same trade pressures.
Unifor Supports Tariff-Free Trade but Questions Poilievre’s Production Formula
Canada’s largest private-sector union has expressed reservations about the Conservative auto pact, even while supporting the overall objective of restoring tariff-free North American vehicle trade. In a March 17 assessment addressed to Poilievre, Unifor national president Lana Payne argued that the proposed production-to-sales formula could produce unintended consequences. The union calculated that Canadians purchased approximately 1.3 million North American-built vehicles in 2025, while Canadian factories manufactured roughly 1.1 million vehicles destined for North American customers. That already represented a production-to-sales ratio of approximately 0.85 to one.
Unifor warned that a strict one-to-one requirement might limit opportunities to reopen or expand Canadian plants because the domestic market for North American-built vehicles is not large enough to support all the proposed additional production. Approximately 500,000 vehicles sold annually in Canada are manufactured outside North America, according to the union. Payne also questioned whether removing GST from Canadian-made vehicles would generate enough additional production to justify the cost. Importantly, Unifor supports the broader principle that manufacturers benefiting from Canadian vehicle sales should also invest in Canadian factories. Its disagreement concerns whether the Conservative proposal would achieve that outcome without restricting future industrial growth.
Michigan’s Election Campaign Is Creating New Opposition to the Tariff War
Poilievre’s Detroit visit coincides with an increasingly contentious debate over tariffs in American politics. Michigan Republican Senate candidate Mike Rogers, who previously supported much of Trump’s trade agenda, publicly called for an end to the dispute with Canada on October 7. Rogers argued that the tariffs were creating unnecessary costs for businesses and consumers. His reversal is significant because Canada is Michigan’s largest export market. According to the Office of the United States Trade Representative, Michigan exported approximately US$23.2 billion in goods to Canada in 2025, representing 39% of the state’s total goods exports.
The timing is politically sensitive because Americans vote in the midterm elections on November 3. Rogers faces Democrat Abdul El-Sayed, who has criticized his change of position on tariffs as politically motivated. Meanwhile, Trump adviser Peter Navarro has warned against perceived Canadian interference in American elections. Asked about that concern, Poilievre rejected the suggestion that his Detroit visit amounted to political meddling. He maintained that his objective was to advocate for lower costs, stronger employment, and tariff-free trade. Whether that argument gains traction in Washington remains uncertain, but Michigan’s industrial interests are creating pressure for a different approach.
Carney’s Government Is Pursuing Its Own Strategy After Trade Talks Collapsed
Poilievre’s intervention comes after negotiations between Prime Minister Mark Carney’s government and Washington reached another impasse. On August 21, Carney announced that Canada was suspending trade talks because last-minute American proposals were, in his assessment, economically unacceptable and raised concerns about the reliability of any agreement. The government subsequently emphasized continuing reciprocal counter-tariffs and measures intended to protect affected Canadian industries. Ottawa maintains that any agreement must substantially improve conditions for Canadian exporters while preserving the country’s ability to make independent economic decisions.
The Liberal government’s longer-term approach also differs from Poilievre’s proposal. Its February automotive strategy allocated $3 billion from the Strategic Response Fund and up to $100 million through the Regional Tariff Response Initiative for industry adaptation and investment. Ottawa is also pursuing international partnerships, including a January agreement allowing an initial annual quota of 49,000 Chinese electric vehicles at a 6.1% tariff rate. The government expects that arrangement to encourage Chinese joint-venture investment in Canadian manufacturing. Conservatives favour closer North American alignment against Chinese automotive competition. Both approaches claim to protect Canadian employment, but they involve different choices about trade relationships, industrial incentives, and economic risk.
The Next Major Test Is Whether Washington Will Consider a New Agreement
Poilievre’s Detroit visit has not produced a signed tariff-free agreement, and significant political and legal hurdles remain. In March, the House of Commons defeated a Conservative opposition motion supporting the proposed auto pact, leaving the framework outside official government policy. Any agreement eliminating American vehicle tariffs would also require cooperation from Washington. Complicating matters further, the United States declined to extend CUSMA for another 16-year term during the agreement’s July 1, 2026, joint review. However, that decision did not terminate the existing trade agreement. CUSMA remains in force, with annual reviews scheduled until the countries agree to an extension or the current term expires in 2036.
The more immediate deadline is Trump’s threatened tariff increase on January 1, 2027. For Ontario manufacturers, uncertainty over that decision could affect vehicle production, supplier contracts, hiring, and future investment allocations. American automakers also have substantial interests at stake because Canadian-built vehicles frequently contain U.S. components, and Michigan businesses depend heavily on Canadian customers. Poilievre’s proposed pact offers one possible negotiating framework, while Carney’s government continues pursuing its own industrial and trade policies. Neither approach guarantees a resolution. What remains clear is that workers in Windsor, Oshawa, Ingersoll, and other manufacturing communities need more than another round of political negotiations. They need predictable trading conditions that allow companies to plan production and commit to Canadian jobs.
