I have a recently purchased 2015 F250 with a retrofitted Sync 3 APIM (older than 2020) and K series screen (newer than 2020). This Sync3 system was in the truck when I bought it so I don’t have history on the retrofit. The GPS and Clock Sync are both not working correctly. I’ve attempted to manua…

When you program firmware or software you should program these in the sets or packages as released by the manufacturer. So in this case, program the other files as listed above. For NA APIM’s, program all of these at once.

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GPS not working and clock not correct on Sync 3 retrofit unit.

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