I have a 2014 Mazda 3 sedan with the larger-screen Type B audio display screen at front centre. In that the clock time is displayed at upper right corner. Today right beside it I see a new item. It looks like an outline of an AA battery with small red lines at each end. I know that's not a warning for the main engine battery - that would be different on the main instrument cluster. But is it a battery warning at all, or something else? Anybody recognize this?