I don't own a RAM, I own a Jeep Renegade Deserthawk 2017. I've been dealing with a navigation issue for 2 years now. I originally took it in because my navigation was showing me going backwards, or like many here, somewhere else. CDJR tried updating it, flashing it, etc. It didn't work, so they replaced the entire radio. Didn't work, still did that same thing, but somehow got worse. Now, my Jeep not only has navigation issues, Holding the voice command button on the steering wheel no longer activates siri, I lost all my siriusxm stuff (though I think if I call they can relink it to this new unit), and weirdly, my car randomly resets my units to metric units, so I have to switch them all back to imperial units. Oh, it also randomly removes the backup guide lines, then puts them back later. I immediately let the dealership know, and they said they would try flashing this new unit, then updating it again. Then, the dealership closed due to the pandemic, so I took it to another one right before my warranty was about to expire, and they tried updating it, but same issues. Then they told me I just have to wait, as Chrysler knows of the issue and is working on pushing out an update. I also called Uconnect directly and they said they knew of the issue and were working on an update. This was the resolution we left off at a year ago. Fast forward to now, I took my car in and asked them about this (now out of warranty), and they said they would apply new updates they had for the system. The updates not only didn't help, but now the built in voice command thing can no longer understand the address I give it, so it broke even more. The tech told me that he has been getting an exceptional amount of complaints across all cars that have the Uconnect system, with navigation issues, malfunctioning, slow usage, backup camera issues, etc. He told me to reach out to Chrysler or Uconnect again to try and open a case directly with them. He also mentioned that they've had Uconnect complaints for a few years now, so I guess this is a well known widespread issue. He mentioned they may have to replace the radio again, which is fine, but what is odd to me is all these issues started happening immediately after this one system update when I took it in. Clearly replacing the radio the first time did nothing for me, though in this forum it seems to have helped with others. I honestly think it's a software issue, like some bug they can't seem to fix. Oh, and when my navigation does work, the system detects a bunch of satellites. When it doesn't work, it detects none. It randomly does and doesn't work. I have an antitheft system in my car that has its own navigation, and it consistently has signal, so it doesn't seem to be that I am in dead spots or anything like that.
My guess is the car for some reason at startup can't connect to GPS satellites sometimes, and instead of continuing to try to connect, it just stays disconnect for the duration of the ride. When the car is able to connect to satellites when starting up, it corrects itself and works for the remainder of the ride. I don't know though.
My next step will be reaching out to Chrysler and Uconnect again. This is honestly tiring, it makes me annoyed I even purchased the upgraded navi package. Of the 4 years I've had my car, I haven't been able to use my navigation for over half of the time I've had it. This is on top of many other issues I've had with my car. Sadly, I don't think I'll ever buy any cars from CDJR again.