Since there’s been a bit of back and forth on this throughout this thread, I thought I’d try to explain how the truck’s built-in modem works in conjunction with SiriusXM’s audio service (which is their latest 360L version), SiriusXM Guardian, and the AT&T Hotspot.
The truck includes an LTE modem that is always on, even when the truck’s engine is not actually running. FCA (now Stellantis) uses this modem to do over the air (“OTA”) updates, which is probably the main reason they added it. With more and more car systems being software based versus hardware based, it makes sense for all automakers to include modems to do bug fixes and feature upgrades without incurring the cost of recalls or voluntary dealer service trips by the car owners.
But, just like the modem in your phone or the cable modem in your home, other applications can use the modem to communicate via IP (internet protocol).
SiriusXM’s audio services mainly uses satellite signals to deliver audio content to the truck. This is a one-way signal, which means the truck cannot communicate back with the satellites or the rest of the internet through the wireless spectrum used for that satellite broadcast signal. It’s just a one-way broadcast (like the old TV broadcast, which were also one-way). But, with 360L, which was introduced for the first time in the 2019 Ram 1500 with the 12” screen only (not the smaller screens), the SiriusXM audio service can use the LTE modem to speak to the internet, which means you can use the modem to listen to the higher SiriusXM channels that are otherwise only available on IP devices like smartphones, computers, smart speakers, etc.
The free trial we enjoyed (1 year previously and now 6 months??) includes the “All Access” package, which allows the user to listen both via satellite signals and via the modem’s IP connectivity. Once you shift to a self-pay subscription, you need to choose between the regular subscription or the All Access plan. If you don’t choose All Access, you will lose the LTE connection and, therefore, the upper channels.
SiriusXM Guardian is a completely separate service that provides safety and convenience features. Safety includes crash notification, vehicle location if stolen/car jacked, etc. The convenience features include remote door lock, remote start, etc. via the smartphone app. This is also provided as a free trial and once that lapses, you will lose these safety and security features unless you subscribe.
Finally, the AT&T Hotspot feature is yet another application that uses the modem, and is offered as a (very short) trial that can be turned into a self-pay subscription/data plan. All it does is allow the truck’s modem to be used as a hotspot for those in the truck who need wifi access (like someone using a wifi-only ipad). I can’t imagine why anyone would really need this or want to pay for another data service when it’s probably cheaper to just use your phone’s hotspot capabilities, even if you have to upgrade your phone’s data plan.
The one thing I’m not sure about is what paid service, if any, is needed for the built-in nav system to do online searches. Since it’s purely an FCA delivered product, I would think FCA would allow it’s own nav system to use the truck’s modem. It’s not like nav searches uses a lot of data anyway (vs. something like streaming music, never mind streaming videos). I can’t imagine the IP access that comes with the SiriusXM all access audio service would have anything to do with the nav. Why would SiriusXM bear the cost of that data usage, even if it’s small? Same thing with the Guardian service, although since that is meant to provide “convenience” features, maybe IP nav connectivity is one of the convenience features it provides?? Finally, I can’t believe the AT&T hotspot has anything to do with the nav search feature either.
I also don’t know what IP connectivity is needed for the Pandora channels being discussed in this thread. Since SiriusXM owns Pandora, it seems to make sense that you need an All Access subscription (or the trial) to get Pandora channels, since you need the two-way IP connectivity to make this a personalized channel. But, perhaps SiriusXM wants to promote Pandora usage and will allow the use of the modem even with the basic SiriusXM audio subscription. I don’t know….
Anyway, I hope this is helpful — and accurate!