I got a yellow warning light on the display yesterday, it stayed on for a few seconds only. I wondered what it was. I turned the bike off and back on again to get a closer look, it was a key and a low battery icon. Time to go to the Owner's Manual. Found it! It was a warning that the battery on the key fob was running low and it was time to change it. So I did and all is well now. It lasted two years. Anyway, I thought that was pretty neat that the bike can do that.