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It’s not OTA. Requires disc/card upgrade and purchase at dealer.How does the OEM Weather map update, and How often?
75% of the time is says no data available when I check it.
Is there a way to force the update?
I think you are thinking about the nav maps.It’s not OTA. Requires disc/card upgrade and purchase at dealer.
For at least '16+, the weather data comes in over the air on HD radio frequencies. You have to be near a broadcasting HD radio station for the weather info and map on the display to work. If you are in range, you get the latest radar and weather forecast/report automatically. If you are not in range, the display will say no data. I assume that's what you mean by OEM weather map update?