The Check Engine Light is an indicator from your engine computer that something is not right. It covers a wide range of issues that could be as minor as loose gas cap to more serious issues like a malfunctioning oxygen or mass airflow sensor. As long as your vehicle feels normal it is safe to drive, however you should have it inspected as soon as possible. If the vehicle is not driving normally, say the engine is shaking or vibrating, you may consider having it towed to the dealership to prevent any further damage or to prevent being left stranded on the road.