"Hood open, stop carefully" when driving

So yesterday I was just driving around in a bit spirited manner around noon, and suddenly the warning "ding" sounds came up with this message in red: "Hood open, stop carefully".



I took an exit, stopped the car and checked, the hood was closed. Anyway I popped it open, closed it and restarted the car. The error was gone.



Software issue?



I remember sometime back the car car gave a "drivetrain malfunction" error and the dealer had to upgrade the software. This happened around noon too.



So do these errors just happen when the temperature is high? Just a guess..



Thought I'd share this since it's a weird thing to happen, did anyone else get this error?