Opplevde at når eg tok att bakluka, er den gått i lås. Parkbremse, motorvsrsel og raud snø indikator lampe lyser konstant. Nøkkel må stå i for å starte m startknapp. Alle blinklys blinker utan dei på speil og innside dashbord. Key not detected står i panelet. 

Kva kan vere galt her?. Straum inn til batteri. Alt fungerer elles. Kom då eg tok att bakluka. Den er låst seg. Hsr bytta batteri i nøkkel. 

Google translate, but it hasn't helped 🤣

Experienced that when I took that tailgate, it is locked. Park brake, engine warning and red snow indicator light illuminate constantly. Key must be in to start with start button. All turn signals flash without them on the mirror and inside the dashboard. Key not detected is in the panel. What could be wrong here? Current to battery. Everything works otherwise. Come when I started to hatch. It is locked. Hsr replace battery in key.

Unfortunately about 80% of your post is lost in translation and makes very little sense.

My best guess at the faults I think you are describing is most likely caused by either a faulty instrument cluster, or it may be you have a faulty Body Control Module (BCM).