According to Reuters report on October 8th, affected by U.S. tariff policies, Mexico's automobile exports experienced the largest decline of the year in September, and automobile production also dropped significantly.
According to data from the Mexican National Institute of Statistics and Geographics (INEGI), Mexico's car exports decreased by 12% in September, reaching approximately 277,400 units. This represents the largest year-on-year decline since December 2025. Car production also decreased by 15% that month, reaching 301,800 units. During the same period, domestic car sales in Mexico increased by 8%, which helped to offset the impact of export market pressures.
Mexican Port of Veracruz: Pictures from Getty Images
As one of the largest sources of overseas auto supplies in the United States, Mexico's automotive industry is directly impacted by changes in U.S. trade policies. With the U.S. government continuing to impose higher tariffs and promoting the return of manufacturing industries, the once deeply integrated North American auto industry chain faces new cost pressures and operational uncertainties.
According to reports by Reuters, although the USMCA is being reviewed by the United States, Mexico, and Canada, Mexican cars exported to the US still face tariffs of up to 25%. Mexico estimates that if cars and components meet North American procurement requirements, the relevant tariffs could be reduced to around 10% to 12%. However, this also means that car manufacturers need to re-evaluate their procurement strategies for components, production layouts, and export arrangements in light of ever-changing trade rules.
It is worth mentioning that tariffs not only affect the Mexican market, but also put pressure on the business decisions of multinational automobile manufacturers.
In terms of corporate performance, General Motors, Ford, and Nissan all experienced a significant decline in car exports to Mexico in September. General Motors had previously announced an investment plan worth $4 billion, aiming to move some of its production from Mexico to the United States in order to cope with the uncertainties caused by tariff policies.
Mercedes-Benz's performance is even more extreme. The brand did not produce or export any cars in Mexico in September, marking the first time in eight years that Mercy has exported cars from Mexico overseas.
However, the Mexican automotive industry did not experience a complete decline. Kia, BMW, and Mazda saw an increase in exports in September, with Mazda’s monthly exports even doubling compared to previous months. This differentiation indicates that the impact of tariffs varies among different automakers, and the specific effects are also related to each company’s product structure, production arrangements, and market demand.
According to data from the Mexican Automotive Industry Association (AMIA), Mexico remains the largest foreign supplier of automobiles to the United States, accounting for approximately 16% of the supply in the US light vehicle market. However, in the first nine months of 2026, Mexico's exports of automobiles to the US decreased by 5%. During the same period, exports to Canada, its second-largest export market, increased by more than 9%.
Mexican local media outlet The Economist reported on October 7 that both Mexico's car production and exports fell significantly in September, indicating that changes in US market demand and tariff pressures are jointly affecting the local automotive industry. Mexican newspaper Financiero warned that if exports continue to decline, the impact could further spread to automotive companies' investment decisions, manufacturing activities, and overall economic growth.
Over the past few decades, driven by free trade agreements and multinational automakers' strategies, the United States, Mexico, and Canada have gradually developed highly integrated automotive industry chains. Vehicles are assembled in Mexico, while engines, batteries, and other components come from different regions of North America, and are eventually sold to markets such as the United States. This division of labor not only takes advantage of production advantages in different regions but also allows automakers to allocate resources and control costs within the region.
However, when the United States adjusts trade conditions through tariffs and origin rules, the cost advantage of the original industrial chain may be weakened. Even if car companies choose to move some production capacity back to the United States, they still need to bear costs such as factory construction, equipment adjustment, supplier relocation, and labor allocation. The reconfiguration of the production process takes time, while the costs resulting from tariffs can be reflected in business operations more quickly.
In this process, American automotive companies find it difficult to stay out of the situation. Reuters reported earlier that Detroit-based automakers are concerned that the U.S. government’s proposed revisions to the North American Free Trade Agreement could increase costs by billions of dollars and weaken their competitiveness compared to competitors from other countries.
The U.S. government has proposed increasing the proportion of North American components in automobiles, with at least half of these components coming from the United States. For car companies that already have cross-border supply chains, this means that these companies not only have to deal with current tariffs, but may also need to reconfigure their supply systems to meet more stringent trade conditions.
This issue also highlights the contradictions faced by protectionist policies: tariffs can change the cost of goods entering markets, but it is impossible to eliminate the long-term division of labor in the industrial chain simply by raising trade barriers.
Automobile manufacturing involves a large number of components, suppliers, and cross-border logistics. Changes in policies often lead to increased costs that are transmitted along the industrial chain, ultimately being borne by automakers, suppliers, and consumers. Companies may also delay investments, adjust production capacity, or even reconsider their long-term market strategies as a result.
In the short term, whether Mexico's car exports can recover will still be affected by factors such as the demand in the United States market, the way tariffs are implemented, and the progress of the negotiations under the US-Mexico-Guatemala Agreement. According to Janneth Quiroz, head of economic analysis at Monex, a Reuters source, September's data is more of a warning sign rather than an indication that a crisis has begun. However, if this trend continues into 2027, Mexico's manufacturing industry may face more structural challenges.
From a broader perspective of trade relations, the impact of unilateral tariffs imposed by the United States is no longer limited to a specific type of imported goods or a particular country.
For the automotive industry, which relies heavily on cross-border division of labor, the stability of trade policies is an important condition for companies to formulate investment plans. When tariffs and trade rules change frequently, companies face not only additional costs but also increased difficulties in long-term planning. Balancing the protection of domestic industries with maintaining the efficiency of regional supply chains will become a challenge that the United States and its trading partners must address.
