Uconnect 8.4A Owner's Manual Supplement page 132

ALL ABOUT Uconnect® ACCESS 131
A message will be displayed to remind you that Via
Mobile apps utilize the data plan on your connected
smartphone to provide content. Touch "OK" to continue
or the "X" to exit.
2
NOTE: Many smartphones have a limit to how much
data they can utilize before incurring additional charges.
The amount of data being used varies by smartphone
device, cellular service provider and specific app. Check
your smartphone service plan for more details.