So This is my first GM product and first in car Navigation. My father has an Impala and he said he pays to update his navigation every year? I said well if onstar sends directions to it then they certainly have to be up to date? I can’t imagine a new hospital not being in there? So I did some research and see that the map in my Truck is coded as a 2017 map and I have a 2018 Escalade. So I go to gm nav store look at 2021 and sure enough there is a test to check for a subway in Detroit,MI that will only work in 2021 update. Well it worked in my 2017. I asked the Dealer and Onstar and they both said if you have onstar with turn by turn it automatically updates? I bet it updates regardless? How many GM people have bought Discs that were not needed? Maybe there was a thread on this? What are some thoughts? So I think if you have onstar turn by turn you don’t need to update? Any insight or other POVs?