I am assuming this is for 2018+ models, right? I think it is time to upgrade from '16 to MY19 to take advantage of some tech features....
same here, my dealer is telling me that the 4g is only on the big body range and the RRS is only 3gHi, I just got a 2018 RRS autobiography a few days ago. Only showing 3G connectivity. Spoke with AT&T — they tried to claim that all RRS modems are 3G, which I insisted isn’t true. They had me turn on and off the data connection, I took the SIM card out and reinserted, ignition on and off, etc. Still 3G. For those who initially had a 3G connection, but then suddenly had 4G, did you have a software update performed, or did this spontaneously happen? Thanks. Otherwise loving the car!