I find the U.S. Connected Drive services to be pretty confusing. There are actually 7 different services available for subscription. For our U.S. 2014 i3, 10-year subscriptions to BMW Assist eCall, BMW TeleService, Remote Services, and eMobility Services and 3-year subscriptions to ConnectedDrive Services and Advanced Real-Time Traffic Information were included with the purchase. A subscription to Concierge Services is available as well. The descriptions of these services are not crystal clear to me, so I'm not confident that I understand what functionalities might disappear when a subscription expires.
When my ConnectedDrive Services subscription expired, I chose not to renew it because I used almost none of what I think it included. It's clear what a subscription to Advanced Real-Time Traffic Information includes, but its information seems so outdated for Honolulu traffic that I find it almost useless. I did renew twice because of Black Friday special subscription prices, but I might not renew next year if the ARTTI doesn't improve.