V50 Active Hood Fault

Sounds familiar. I had a similar issue with my 2016 Opel Insignia a while back. Same "active hood" warning, airbag light, and error codes. Did the error message appear suddenly or after hitting a bump?

It did come on pretty much out of nowhere while driving on a relatively smooth road. Do you think it could be related to even a small bump?

In my case, a faulty acceleration sensor was triggering the system. Apparently, even a minor jolt could set it off. Given that yours happened on a decent road, the sensor might just be defective. You can inspect the hood latch mechanism, but honestly, it's probably time to get it checked by a workshop. Expect to pay for diagnostics at least. Best of luck!

It's frustrating that such a safety feature can cause so many headaches. I took your advice and brought it into the workshop. Turns out it was the acceleration sensor, just as you suspected. The bill came to 315€, but at least it's sorted now!