Today, Auto OEMs and Tier 1 suppliers navigate increasingly complex tariff scenarios. For example, aluminum raw material is cast into a piston in Canada, then shipped to Detroit for machining — incurring a 25% tariff based on the piston’s value. After machining, the piston returns to Canada for engine assembly, where it is exempt from Canadian tariffs on auto parts. The completed engine is then sent to a vehicle assembly plant in Mexico, traveling through the U.S. without additional tariffs under the USMCA agreement. Finally, the assembled vehicle crosses the Mexico-U.S. border, triggering a 25% tariff on the vehicle’s non-U.S. content. Throughout this process, a single part may cross borders several times before becoming part of a finished vehicle.
Several OEMs, including Mercedes-Benz, Stellantis, Honda, and Toyota, are considering options such as pausing production in Canada, increasing U.S. production of alternative models, or halting vehicle manufacturing for the U.S. market in Mexico. Meanwhile, suppliers like Lear, Dana, Magna International, and BorgWarner have announced layoffs, factory closures, and spending reductions in recent months. If tariffs remain in place for six months, greater than 50% of suppliers indicated they would cut or delay investments. Morgan Stanley projects that with every 10% increase in vehicle prices, sales could decline by 5% to 7.5% and Automakers could face a loss of up to 3.2 million U.S. vehicle sales if they attempt to pass the full cost of tariffs onto consumers.
Tariffs are not a new challenge. For example, some OEMs in the past, like Mercedes-Benz, manufactured Sprinter vans in Germany, then partially disassembled them for shipment to South Carolina, where they were reassembled to avoid U.S. tariffs. To navigate these complexities, business leaders must adopt a proactive, agile, and strategic approach to risk management, developing scenario plans to address a wide range of potential disruptions. While the past focus was primarily on minimizing supply chain costs in a global free-trade environment, today’s supply chain leaders must prioritize flexibility, build in additional redundancies, and create strategic sourcing options for rare materials, components, and technologies. Given such complexity, how can Auto OEMs and Tier 1 suppliers stay ahead of the curve and develop a tariff action plan across strategic, tactical, and operational horizons? Blue Yonder offers a solution — enabling a comprehensive tariff strategy in as little as 7 days.