These symbols, often called "idiot lights," are aimed at being easy to understand. But for many drivers, young and old alike, it's not that easy.

US President Donald Trump announces tariffs on auto imports in the Oval Office of the White House in Washington, DC, on March 26, 2025. Trump announced imposition of 25 percent tariffs on all cars and ...

Like many things, cars are not perfect. It is fair to assume something is eventually going to break or stop working no matter what sort of car you buy, and no matter how reliable it is rumored to be.