The problem could be something minor, like a loose gas cap, or something more serious, like a failing sensor or a problem with the emissions system. Ignoring it could lead to further damage or even failure of the vehicle.
To find out what's causing the light, you need to:
* Get the diagnostic trouble codes (DTCs) read. A mechanic can do this easily with a code reader. Many auto parts stores will read the codes for free. The codes will give you a much better idea of the specific problem.
* Consider a professional inspection. Once you have the codes, a mechanic can diagnose the issue and recommend repairs.
Don't just assume it's something minor. Get it checked out to avoid more extensive (and expensive) problems down the road.
