That's very interesting... I'm going to have a chat with this with the local dealership when I go in for an oil changeOne interesting thing to note: For the past couple months, I would get a warning in the message center upon starting the car every time indicating that my tires were set for either light load or normal. Would simply hit enter to clear, but was mildly annoying and made me wonder if there was a deeper issue that started causing this. Since installation of the new battery this week, I no longer receive the warning upon start. I wonder if the battery weakness may have caused this warning to show. There is another thread somewhere on this forum with others complaining of the same. Maybe some of you with that issue have weak batteries as well?