Your car is basically a rolling computer network, and that little “check engine” light is the car begging you to read the ...

Modern-day vehicles are equipped with numerous sensors designed to monitor every aspect of the car. If one of these systems detects an issue, it is likely to trigger the warning system, which will ...

When your vehicle's check engine light (CEL) comes on, it's often a sign that something needs attention. But with over 20,000 ...

Here are 2025's most popular questions and answers from The Journal's Car Doctor column, from rotating tires to oil changes.