Keep in mind, these are both optional features. You have the ability to turn them on or off at any time from within the app.
You can view the new user privacy statement on Uber’s website today, but the changes won’t go into effect until July 15th. If you use Uber regularly, expect to see a notification around that date asking for permission to your location data and address book. Uber even made specific pages for iOS app permissions and Android app permissions, so you won’t be caught off guard.