What is indicated by the Service Engine Soon light?

The Service Engine Soon light typically illuminates when the vehicle's onboard diagnostics system detects a problem with the engine or its associated components. This alert serves as an early warning system, signaling to the driver that attention is needed to prevent potential damage or reduce performance issues.

When this light turns on, it can indicate various issues ranging from minor problems, such as a loose gas cap, to more serious concerns that could affect engine performance, fuel efficiency, or emissions. It's essential for drivers to pay attention to this warning and have their vehicle checked by a qualified mechanic to diagnose and resolve the underlying issue. This proactive approach helps ensure the vehicle runs smoothly and safely, contributing to better longevity and performance of the engine.