* Checking the gas cap: Ensure it's securely tightened. A loose gas cap can trigger a check engine light.
* Diagnosing the issue: A scan tool (available at auto parts stores) can read the diagnostic trouble codes (DTCs) from the vehicle's computer to pinpoint the problem.
* Professional repair: If the problem is more serious, you'll need a mechanic to diagnose and fix it. Things like fuel injectors, fuel pump, or other components may require professional attention.
In short, there's no button to press; the solution is to find and fix the underlying fuel system problem.
