Why is my Vauxhall Astra's check engine light coming on?

I have a 2015 Vauxhall Astra and recently the check engine light has been coming on sporadically. What could be causing this issue and how can I fix it?

The check engine light is a warning that there is an issue with your vehicle's engine. It could be caused by a variety of reasons such as a faulty oxygen sensor, spark plugs, or catalytic converter. It is important to bring your car to a mechanic to get it checked and fixed as soon as possible.

It could also be a simple issue like a loose gas cap. Check to make sure it is securely tightened. If the light persists, it is best to take it to a professional for a proper diagnosis.

If your Astra is due for a routine maintenance check, it is possible that the check engine light is a reminder for you to get it done. Make sure to follow the recommended maintenance schedule for your vehicle.