Why is my Ford S-Max' check engine light on?

I have a 2017 Ford S-Max and recently my check engine light has turned on. My car seems to be running fine but I'm worried about potential issues. Should I take it to a mechanic or is there something I can do myself? Thanks.

It's always a good idea to take your car to a mechanic when the check engine light turns on, as it could indicate a variety of issues. However, you can also try checking your gas cap to make sure it's tightened properly, as a loose gas cap can cause the light to turn on. If the light persists, it's best to get it checked out by a professional.

I had the same issue with my Ford S-Max and it turned out to be a faulty oxygen sensor. I would suggest taking it to a mechanic to get it checked out as soon as possible, as it could lead to more serious issues if left untreated.