I am having trouble linking my iPhone to an existing driver profile following the instructions on page 44 of the M3 Owner’s Manual. On the car, after selecting Controls > Locks and touching the + icon, I get a screen where a phone or key card must be selected. Under the phone selection is written, “Select your vehicle in the Tesla mobile app to begin.” Since there is only one car linked to my Tesla phone app, I am not sure what that means. When “Phone Key” is selected on my phone’s Tesla app, I get a screen entitled “Having Trouble“ which suggests turning Bluetooth off and then back on, which doesn’t help. That is as far as I get. What am I doing wrong? I am on 2019.40.50.7.