Whom Posted February 9, 2010 Share Posted February 9, 2010 The latest 2010 Lexus IS improves the Navigation to include XM traffic displayed on the Nav system (and used for route calculations). Is there any way to upgrade my 2008 IS to include the new functions? Quote Link to comment Share on other sites More sharing options...
SW03ES Posted February 11, 2010 Share Posted February 11, 2010 You'd have to replace the navigation system, and the XM module at least... Quote Link to comment Share on other sites More sharing options...
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