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Resetting a check engine light can save you stress and a trip to the mechanic so long as you have access to an OBD2 scanner.

The check engine light can cause uncertainty for drivers and indicates possible malfunctions. It's an important warning that should be addressed promptly.

While your check engine light is obviously meant for engine issues, it can often give you clues to problems in other parts of the car as well.

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The check-engine light is a signal that the onboard diagnostics system (or OBD II) has detected a malfunction in the vehicle's emissions, ignition or fuel systems.

Consumer Reports explains what the check engine light means and what to do when you see it: how to tell if your car has a loose gas cap—or a serious engine problem.

It would be better to scan the computer for fault codes, repair the issue, and then electronically clear the code. If the check engine light comes back on, you still have more work to do.