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grayss2011,
I hate to say this but if you are storing your car for the winter , the worst thing to do is start it up occasionally.Doing this leaves moisture in the system and could be problematic for you down the road.
There are threads on here with proper storage procedures or speak to your dealer to get their recommended storage procedures.
re:battery
should be hooked up to trickle charger or some people disconnect battery at negative terminal in the trunk(just don't close the trunk all the way)
re:fuel
should add fuel stabilizer and top up tank
I do oil change before and after storage.
there are other things that you can do as well.
now as to your original question.Sometimes the compass needs to reset , so do a few right turns followed by left turns and should reset itself.If not there is an issue and will be covered under warranty.
My compass is stuck on "cal" and is going to be fixed under warranty after winter hibernation.This happened before winter storage and my dealer was informed and duly noted for repairs come spring.
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