The U.S. has imposed 25 percent tariffs on most imports from Canada and Mexico, effective March 4, excluding Canadian energy imports, which face a 10 percent duty. Tariffs on Chinese imports have also increased to 20 percent. These measures are expected to disrupt the North American auto supply chain, raising vehicle and parts costs and prompting Canada and Mexico to impose retaliatory tariffs on U.S. goods. Automakers and suppliers warn of production slowdowns, plant closures, and higher consumer prices, with some vehicles expected to increase in price by $4,000 to $10,000. The tariffs, intended to address border security and incentivize U.S. manufacturing, threaten long-term industry stability, with some companies considering shifting production to avoid costs. If sustained, they could lead to a 10 percent decline in North American vehicle sales and increased manufacturing costs. Additional tariffs on steel, aluminum, and other imports are set to take effect in the coming weeks, further complicating trade and production strategies.