Bethany7687 Posted December 7, 2008 Share Posted December 7, 2008 I have a 2007 ES350 with nav. At about 50k miles the navigation system failed. The cursor starts to spin around. The next time I start the car, screen displays "Check System". When I press 'map' the message is "the external system is not connected." It takes several days for it to work again. This definitely happens more in cold weather. Now I can't get it to work more than a few minutes. When it first happened a year ago, the dealer told me it was out of warranty and wanted $2200 to replace it. Has anyone experienced this? Any suggestions? Quote Link to comment Share on other sites More sharing options...
Step Hen Posted December 8, 2008 Share Posted December 8, 2008 I would pull the main radio unit out and check the wiring's condition and see if any connections have become loose Quote Link to comment Share on other sites More sharing options...
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