I just picked up my new 85D yesterday. While the car was linked to MyTesla account from teh get go, it did not actually show up in the app until about 5 hours after I got the vehicle. Maybe thats because I already had a vehicle in the app (the 85 I traded in)? i was told it can take up to 2 business days for the car to show up in the app (and for Slacker to be enabled). Interestingly, the old car still shows up in the app.