Google Map--Screen going blank

1) perhaps you're in an area with poor cellular reception? And it's just taking a long time to fetch map details from the Google Maps server?

2) it's a computer. Like any other computer - reboot it, and see if that fixes things. (press & hold the "Home" button below the center console for about 30 seconds, past the "cleaning mode" screen, until you see a faint "Volvo" logo start to appear. That's your indication the computer is rebooting, and you can let go.)

Thanks for the advice on re-booting. I tried that a couple times and it didn't correct the issue. However, I ended up deleting the downloaded offline maps and that did fix the issue. Must have been some problem with the downloaded maps. Anyway all is good for now.