I just started getting this message on Friday. It scrolled by in the odometer display after turning the key on and went away when I press select to change the display, but came back on everytime I restarted (also, if I press select enough times, it eventually cycles back to that message). I checked the cap and it was tight (I went several clicks to be sure). This morning, the message was gone. Anyone seen this or know what could be causing it? We have had lower than usual daytime temps over the last couple of days, so maybe that has something to do with it?