I just bought a used 2022 S90 T6 R-Design and the boot opens fine but won't close. I am trying with the dash button, the boot button and the kick sensor. It doesn't even try to close. It opens fine. I am wondering if it is the pinch sensor? I have been googling for a couple days an not finding anything...

 

You definately want to take care of this before the handles break entirely. It is MUCH harder to work on a door when it is stuck shut!

 

Factory warranty is 4 years OR 50,000 miles, whichever comes first. Your 2022 model is within the year limit. If you car has less than 50K miles, take it to the dealer for warranty serivce.