I have a 2017 MKX with about 32500 miles. I had the car serviced today and on a "Multi-point inspection report," I see a section named "Declined Services." Under that heading, it reads during the Battery Capacity Test that the "battery tested bad" and needs to be serviced soon. I've been looking through all my documentation on what's covered and what's not. There's no mention of the battery anywhere except for instructions on how to replace it. I took delivery in Feb 2017, so my bumper to bumper warranty is still in effect. I know wear items like tires, wipers, etc are not covered by warranty but nowhere does anything say the battery isn't. So.... it begs the question of who warranties the battery?