If the Service Engine Soon light doesn’t turn on when starting the engine, what should you do?

When the Service Engine Soon light does not illuminate when starting the engine, it can indicate a malfunction in the vehicle's onboard diagnostics system. This system is designed to monitor various vehicle functions and alert the driver to potential issues. The absence of the light suggests that the system might not be functioning correctly, which could mean that critical emissions controls or engine performance features are not being monitored.

It is crucial to get the engine serviced and checked immediately to ensure that any underlying issues can be identified and addressed promptly. By taking this action, you can help prevent more severe problems down the line that could lead to costly repairs or unsafe driving conditions. Addressing any malfunction proactively enhances safety and vehicle reliability and ensures compliance with emission standards.