Many thanks apybrid for trying to help. I will live with it now, it’s a safety feature after all.
I, again, am just mystified why it suddenly appeared after 2.5 years with this car. You could expect something like this if, like a computer app, I had set it to update the systems but it has no way of doing that, that I know of anyway.
Although it is a safety feature, I find I cannot rely on it, I still check behind and sides when reversing, force of long habit before such ‘safety features’. But the screen does help get a view of how near I am to whatever is behind and if, as someone pointed out, a child or animal suddenly appeared.
Enjoy your day