Thank you this question and thread. I just bought the car for 2 weeks and I've been staring at the screen. I thought I'll be seeing that screen for the rest of my life taunting me that I didn't buy the Navigation system.

I finally changed it Climate today:


Change from Navi to climate

10 Mpg on my screenshot, what does that mean? 10mpg for last car ride, 10mpg since last fuel up, 10mpg since the first day I bought the car?

 

MPG since start up, so "last car ride". Notice that you are tuned to an AM
station but if you also listen to FM or iTunes that have additional song and
artist information you might like to swap climate for media. Any reason you
do not want to see Fuel Station locations and gas prices on screen from your
phone?

 

I do not have the "Fuel Station locations and gas prices" option. Maybe because I don't have built-in Navigation.

I have apple car play and enform app 2.0.