I just got a new XC60 hybrid myself after a few years without a Volvo car.
Don’t know how new your car is, mine is the model year 2022. Volvo has changed something in their APIs and these new cars are not available here. I also can’t add my car to Tibber’s app, when contacting their support they said the car is “too new” and they are talking to Volvo about how to solve this but don’t expect a solution in a near future.
Even the “new” Connected Vehicle API from Volvo says
This API works for all connected cars up to model year 2021, excluding the XC40 Recharge BEV.
The Extended Vehicle API potentially works for these model year 2022 cars, but it doesn’t support invoking commands.
If anyone has any intel on what we can use please let me know