Nuvi 310D TMC Function

[harry1968]

My 310D using GTM12 TMC aerial will download TMC information to the unit (ie i can view the full list of incidents by pressing blue exclamation mark) but will not show a RED WARNING TRIANGLE on the screen if there is an incident on my selected route. This used to work and give you the option of continuing or diverting around said traffic incident. Does anyone know of any software issues or otherwise that is causing this problem? Software version is 4.40 and GTM SW version is 4.70. Thanks

[swing]

Those versions work fine for me, and I do get the red triangle. Firstly, have you actually checked that the traffic that's downloaded includes part of your route - if it's not on your exact route, you won't get the triangle. Failing that, I would suggest some form of reset of the unit (potentially losing all data, so you should back up your unit first) may be in order.
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