Roger Taft Posted June 29, 2015 Share Posted June 29, 2015 What's the proper Generation, U-value, and Version for updating the nav unit on an ES350? Generation 5, U39, v14.1? To ask the question another way, what does "Geneation" and "U" refer to? Thanks, Roger Quote Link to comment Share on other sites More sharing options...
delZ Posted June 29, 2015 Share Posted June 29, 2015 What's the proper Generation, U-value, and Version for updating the nav unit on an ES350? Generation 5, U39, v14.1? To ask the question another way, what does "Geneation" and "U" refer to? Thanks, Roger Generation refers to years in a way (ES350 07-09 is considered generation 5) U39 refers to the update You can use the one that you mentioned since that's the lastest one right now for the 07-09 ES350. Quote Link to comment Share on other sites More sharing options...
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