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Do you know what the symbol pictured above means?

No, it’s not a new emoticon, but things could get pretty scary for you if you ignore it.

It’s one of the ideograms that act as warning lights on the dashboard of a car. But while a picture is supposed to be worth a thousand words, not all of them are as self-explanatory as intended.

A recent study found that nearly half of U.S. drivers couldn’t identify the low tire pressure symbol, which is an exclamation point in the middle of what kind of looks like a tire, but isn’t always that obvious.

As for the one at the top of the page, it means that your brake fluid is low, which could lead to brake system failure if you ignore it too long. So don’t.

Depending on what kind of car you drive, there are dozens of these types of lights that are worth getting familiar with before they turn on, and AOL Autos has compiled a list of the five most important ones.