I have had my 2015 Murano for 2 weeks now and seem to have problems with the liftgate. It will not open with the key,nor from inside the cabin or manually. It does have a power door switch which I have made certain it in the on postition. I have also switched it off and tried to open it manually without success. Is there a factory reset we can do? Any suggestions would be appreciated. Other than not being able to get my groceries out of the trunk I love it.