I had to enable Location & Data Services in my e.
When I had done that (after weeks of trying to do everything on my phone!), the app finally refreshed and updated everything properly.
I was under the strong, but clearly wrong, impression that the dealer had set it up properly. But maybe things were upset as a long and unsuccesful attempt to get the native SatNav working properly after the CarPlay SatNav had been activated.
I am very disappointed with Honda’s central support which implied it must be my iPhone’s s/w that was causing the problem!
Honda updated the car’s s/w systems while the car was at my dealer’s workshop for a day. Later, I updated the s/w systems a couple of times my self, but with no luck.
At least the CarPlay SatNav works properly.
John