Engine Light Keeps Turning On? Common Causes and Fixes Every Driver Should Know [2025 Guide]
The engine light—sometimes called the “check engine” light—sits on your dashboard as part of your car’s warning system. This light is tied to the onboard diagnostics (OBD) system, which acts like your car’s health monitor. When it senses something unusual under the hood, the OBD tells the engine light to switch on. This covers things like emissions, fuel, and engine performance.