Nav Update Version

[Roger Taft]

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

[delZ]

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.