How do I troubleshoot a check engine light on my Vauxhall Grandland?

My check engine light has come on and I'm not sure what to do. Any advice?

First, don't panic. The check engine light can be triggered by a variety of issues, some of which may not be serious. The best thing to do is to get a diagnostic code readout from a mechanic or an auto parts store. This will tell you specifically what the problem is and how to fix it.

One common cause of a check engine light is a loose gas cap. Make sure yours is on tight and try driving for a bit to see if the light turns off. If not, you may have a different issue.

If the diagnostic code indicates an issue with your emissions system, it's important to get it fixed as soon as possible. Ignoring it can lead to more serious problems in the long run.