This article is applicable to models with Google built-in. The instructions vary depending on car model, so be sure to read the section that applies to your car.
EX30
and 
buttons on the steering wheel. You need to hold the buttons for approximately 15 seconds until the display turns off and then restarts showing the Volvo logo.This procedure might need to be performed more than once to be effective.
Applicable models
EX30, model year 2024
All cars with Google built-in except EX30
To restart the centre display, press and hold the Home button below the display for 20 seconds. The screen will first go into cleaning mode. Continue to hold the button until the display turns off and then restarts showing the Volvo logo. The procedure is shown in this video:
This procedure might need to be performed more than once to be effective.
For cars without Google built-in there is no option to manually reboot the centre display. Pressing the Home button only turns off the screen, but it does not restart the system. The system will reboot itself when necessary and it always reboots as a cold-start when you leave and lock the car.
If connectivity is not restored through a centre display restart, there are a few other things you can try. These solutions are described in a separate article.
Applicable models
C40, model year 2022 and later
S60, S60 Recharge, model year 2023 and later
S90, S90 Recharge, model year 2022 and later
V60, V60 Recharge, V60 Cross Country, model year 2023 and later
V90, V90 Recharge, V90 Cross Country, model year 2022 and later
XC40 Recharge Pure Electric, model year 2021 and later
XC40 (mild hybrid), model year 2023 and later
XC60, XC60 Recharge, model year 2022 and later
XC90, XC90 Recharge, model year 2023 and later