Mexico’s auto exports fell 12% in September from a year earlier, and vehicle output dropped 15%. The figures expose the sector’s reliance on the U.S. market, where Mexican cars still face tariffs of 25%. Statistics office INEGI released the numbers Wednesday; they mark the steepest export decline since December 2025 and the biggest slump so far this year. Domestic sales rose 8%, cushioning the impact on the country’s leading industrial sector.
A trade relationship under pressure
The United States remains the largest market for Mexican vehicles. Mexican officials estimate that meeting rules requiring North American-sourced parts cuts the tariff burden from 25% to between 10% and 12%. Government officials are reviewing the U.S.-Mexico-Canada free trade pact, while tariffs continue to shape the conditions facing Mexican carmakers and exporters.
The two economies have grown closely intertwined over more than three decades of successive free trade agreements. Sudden policy shifts and tariffs under the Trump administration have shaken business owners’ trust in long-established supply chains, the article reports. September’s figures show mounting pressure on exports and production, though domestic sales offered some support.
“This has generated greater uncertainty for carmakers and it has affected production and export decisions,” said Janneth Quiroz, economic analysis director at Monex. She called Mexico’s reliance on the U.S. market the sector’s biggest risk. “The September data is a warning sign rather than a crisis signal,” she said. “If this trend continues into 2027, then we could indeed be talking about a more structural problem for Mexican manufacturing.”
Companies respond as exports fall
General Motors announced last year a $4 billion push to shift some production from Mexico to the United States as it navigates tariff policies. The Chevrolet-maker, Ford and Nissan all reported significant export declines in September. Mercedes-Benz shut a joint plant with Nissan last May and produced and exported no cars last month. The company had never done so before since it began shipping abroad eight years ago.
Other manufacturers posted gains. South Korea’s Kia, Germany’s BMW and Japan’s Mazda picked up some of the slack, with Mazda more than doubling its monthly exports. Still, Mexican vehicle output fell 15% and exports declined 12% from a year earlier.
Markets and investment at stake
Mexico’s main auto chamber, AMIA, said Wednesday the country remains the top foreign provider of cars in the United States, supplying 16% of light vehicles in a market that has shrunk 2% so far this year. AMIA data also showed Mexican exports to the United States fell 5% in the first nine months of 2026. Canada, Mexico’s next-biggest market, increased its purchases by just over 9%.
Alejandra Vargas, an analyst at Ve Por Mas, or Bx+, said a sustained slowdown could affect automakers’ investment decisions, manufacturing activity in Mexico and overall economic growth. “The evolution of the trade relationship between Mexico and the United States will continue to be the main factor determining the industry’s course in the coming months,” she said. The exposure is clear: the United States remains Mexico’s largest vehicle market, while tariffs and trade-policy uncertainty weigh on production and export decisions.