Avensis T25 on-board computer

Hello everybody, I’ve been driving my Avensis for about 3 months, and I’m very happy with it 🙂 But: I’d like to ask you a question, can anyone of you explain to me why my Avensis’s on-board computer is in English??? Well, it’s not tragic anymore, but I’d rather be German 🙂 Can you change the language somehow? MfG Thorsten