What causes the 'Check Engine' light to turn on in a Kia Ceed?

I noticed that the 'Check Engine' light turned on in my Kia Ceed and I'm not sure why. Can you please explain what could be causing this and what I should do about it?

One of the most common reasons for the 'Check Engine' light to turn on in a Kia Ceed is an issue with the oxygen sensors. These sensors help regulate the air-to-fuel ratio in your engine and if they are not functioning properly, it can cause the light to turn on.

Another possible cause could be a loose or damaged gas cap. If the gas cap is not properly sealed, it can cause a small leak in the fuel system, triggering the 'Check Engine' light.

A faulty catalytic converter can also be the culprit. This component is responsible for converting harmful pollutants into less harmful emissions, and if it is not functioning correctly, it can cause the 'Check Engine' light to turn on.

It's always best to get your Kia Ceed checked by a professional mechanic if the 'Check Engine' light is on. They will be able to diagnose the specific issue and provide you with the best course of action.