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Originally Posted by mgruber
Does anyone know if this is a function of the Nav computer (and operating system) or the Nav data disk itself? I'm running ver 29 and the latest nav disk.
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The NAV can generate some seriously wacky routes when the navigation OS and map disc are from very different times. I once got a route from Jersey City, NJ to Brooklyn via the Tappan Zee Bridge. An update of the NAV OS fixed it.
Updating the OS is easy and free (see other posts here for the download / install instructions). If the NAV still offers you the Midtown Tunnel as a toll-free route, submit a map error report to NavTeq
here.