You create a digital key through the mobile app. However, you must have your key card with you and be in the car. You will also need your Volvo ID to hand.
Access your mobile app and follow the instructions.
When the car's display gives you a notification to do so, place a key card on the card reader located between the two front seats.
Follow any further instructions in the app or the display, such as scanning a QR code in the display with your phone.
To save some customised settings, you should assign a key to a profile.