After change region settings in car configuration - for example USA market to EU market, you need to change also region settings in your entertainment system.
Otherwise the infotainment system will be very slow and not possible to use!
This tutorial is valid ONLY for Sensus Connect cars. If your car has sensus connect you can easily find out, if you connect it to VDASH and you will see unit IHU on the diagnostic network. Usually the Sensus Connect car has also the globe key on the clima console - see pictures bellow.
Now you need to connect your car with VDASH and open IHU unit in VDASH - just simple click on the IHU button:
This window will pop-up and you need to click on "Start Engineering Mode" button. In approx 10-sec. you will see in car central monitor the menu bellow and from this time you will manage all settings thru car's clima console - see pictures bellow.
You will see this in your car:
In this menu you will move with the keys 2 / 6 / 8 / 4 and OK / EXIT
Now you need to go to menu 7 - HW settings with pressing key 8 and confirm with OK
Here menu 7.3. - "Market/DVD setting" and also OK.
Here change market from US to EU (if you converting car from US to EU market), change the NTSC to PAL and Region code for DVD from 1 to 2.
When all is done, you will go back with key EXIT and you will find menu 3.26.
And you will activate possibility to install different map data region.
After this you will go back to main menu and you will find menu 9 - System reset.
And you will confirm reset system - with this you will save all settings and the system will boot up with new settings.
After this full process, lock car for 5-min at least!
After 5-min you can set your local language (if it is supported by volvo) thru the central console menu (also for DIM).
More info about navigation region, map data download and navigation activation is here: https://d5t5.com/wiki/vdash/article-volvo-navigation-activation-sensus-connect