Mexico's car assembly industry, one of the biggest in the world, fears US President Donald Trump's tariff war will impede access to an increasingly indispensable component: digital dashboard touchscreens for which parts are sourced mainly in China.

As Washington has engaged Beijing in a commercial tug-of-war, Mexico has come under pressure to act in step with its wealthier northern neighbor, and its Congress is considering hiking tariffs on Chinese imports.

President Claudia Sheinbaum insists the measure is meant to boost domestic manufacturing.

One problem: Mexico does not produce most of the electronic parts used in car assembly -- particularly for the dashboard screens that provide drivers with real-time navigation and music at their fingertips.

China does.

And even if alternative

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