Yo uso TomTom pero con Iphone. Nunca había visto eso.
He indagado un poco a ver si podía ayudarte y he encontrado tu mismo problema de otro usuario pero con Waze. Intenta hacer lo que comenta este compañero extranjero. Si no es mucha molestia, tradúcelo tú, jejejeje. Ya nos contarás si has podido solucionarlo.
This is not a problem related to Waze and you can make it go away by yourself. It is a developer setting in your Android Auto app.
I had this same problem and I was able to remove it by going to: Settings (your phone settings) > Apps > App Info > Android Auto > Additional settings in the app > tap the 3 dots in the top right corner > Developer Settings > scroll down to the last option and uncheck Enable debug overlay. Voila!