As a car driver, chances are your check engine light has come on, and the best piece of advice is not to panic. It could mean anything from a quick fix to a serious engine problem. When it comes on, you should check other gauges and lights, tighten the gas cap, call roadside assistance if available, and reduce your speed. To lower the risk of a check engine service light appearing, be sure to take proper care of your engine. The next time your check engine light comes on, follow this advice to help your car recover as quickly as possible.