Removing link between vehicle and Polestar app
Before uninstalling the Polestar app, you need to make sure that the link between the app and the vehicle is removed. If the Polestar app is only deleted, there may be problems connecting to the vehicle in the future.
The link between a paired phone and the vehicle can be removed either from the Polestar app or from the vehicle's center display. Users with administrator rights can see and disconnect all phones paired with the vehicle. Other users can only see and disconnect their own phone.
Via the Polestar app
Go to the 
tab.
tab.Select Manage users to see a list of users connected to the vehicle.
Tap Unpair next to the phone you would like to remove.
iPhone users only: in your phone, search for and delete Polestar2 in the list of Bluetooth connections.
Via the center display1
Open the Digital Key app via the app view 
in the vehicle's center display.
in the vehicle's center display.Tap the trashcan 
adjacent to a profile to remove the key from that profile.
adjacent to a profile to remove the key from that profile.iPhone users only: in your phone, search for and delete Polestar2 in the list of Bluetooth connections.