Fact: Check engine lights lead to gray hairs and sleepless nights. Just kidding, they’re important warning signs that help you maintain your ride’s health and well-being. But what happens when that ...

Turn your smartphone into a professional car diagnostic tool with a $15-30 OBD2 adapter and free apps that read engine codes in seconds.

When the dreaded malfunction indicator light turns on, it’s not the end of the world. Here’s how to cope with an MIL!

The check engine light means one of your car’s systems is malfunctioning. If it’s flashing, pull over as soon as you safely can. If it’s steady, follow these simple steps. Many, or all, of the ...

Whether you know a lot about cars or nothing about them, it's never fun to see the check-engine light—also known as a malfunction indicator light (MIL). This is your car trying to tell you it has ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? Your Check Engine light is shining like a beacon of bad news. What's going on? The ...