Posted on 2/28/2025
The check engine light is one of the most common yet frustrating warnings a driver can encounter. When it illuminates, it could mean anything from a loose gas cap to a serious engine issue. Ignoring it may lead to further damage and costly repairs, so knowing what to do when your check engine light comes on can help you respond appropriately and avoid unnecessary stress. Why Your Check Engine Light Turns On The check engine light is part of your car’s onboard diagnostic system (OBD-II). It monitors engine performance, emissions, and various electronic components. When the system detects an issue, it triggers the light to alert you. Some problems are minor, while others require immediate attention. There are two types of check engine light warnings: Steady Check Engine Light – This usually indicates a non-urgent issue that should be checked soon. The car may still drive normally, but ignoring it can lead to reduced performance and fuel efficiency. Flash ... read more