This has been happening to my 2008 Grand Prix GXP lately and I don't know what it means. It has never happened under the same circumstances twice and it's more of a bother than an issue (I just don't like not knowing why the car would say the message.) Is there a wire coming loose; am I driving it too fast; is it just because it's cold outside? I do know that I am out of windshield washer fluid but the center console tells me this each time I shut the car off. I also accidentally reset the thing for the change oil but I do my own oil changes so I'm not that worried about resetting it everyday if I feel like it. Is the center console--where the radio is located--also called the trip computer or is the car referring to the miles that are on TRIP A, TRIP B or total trip miles? Just thought I would put this out here in case anyone is experiencing this issue. The car has just under 70k and I drive a short distance to work each day (I know--it KILLS the gas mileage and is generally bad for the car) but I haven't had any issues with it. When I called GM today they said they had to have a mechanic look at it to see what was wrong, if anything. I'm not paying a DX fee just so they can tell me there isn't anything wrong with it. Thanks for any information!