Your friend, or the new used car owner, will get to push a button every time the car starts, agreeing to the contract. Yeah, yeah, unenforcable, blah, blah. You want to go to the mall, or not?
(Though I'll admit that that annoying screen was at least a partial inspiration for my original comment.)
Anyway, all the screen says, in essence, is that Nissan is using the aggregate data blah, blah, and if you want to use the nifty history telemetry, well, you're going to have to let the car send those data. Or not; car works just fine if you press "decline".