| Update to navigation Went to my dealership yesterday and was informed that my 2007 STS could use an update to the navigation system. I was told that the update would take about one and a half hours. Service dept. didn't seem to know too much about what the update did. Couldn't answer if it updated the streets or not. Any help out there. Please advise if it is recomended and what the changes are. This is an update not a new navigation disk. I have no problems now they just recommended it. It's free. Anyone that can help, Thanks
N8860
Last edited by N8860; 11-04-09 at 11:36 PM.
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