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Chick
You can do the location calibration, which "sets" your position at least for that moment. Yes, there is also a "setting" for the tire size, try to find that and make sure it is correct, this mainly affects the "dead reckoning" though, in normal operation the GPS system sets your location by itself.
Thanks for your idea Paul. I would think that it should learn it's position as long as there is free sky, whether it's moving or not, but your idea certainly is worth a shot, at least if he is receiving satellites. If none of this works I assume he has a bad new COMAND unit, I wonder if no one set a tire size (in the new unit) if it would act this way, I've seen this before where it said "P000/00-00".......If you see this Chick you may have found the problem.
Gilly
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