Have to call the dealership
Depends if you bought it brand new our used...
I am not sure. You may have to call them.
Any bumper to bumper warranty covers the battery.
My daughter in law had the same issue with her battery and she had to buy a new one too hot for having battery problems i would call them and see but she bought a used Nissan Altima and I don't think it was covered we definitely love the car and good luck with everything!
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