It could be a sensor problem. Check the coolant level before adding anything...
It happened to me twice, and had it checked by the dealer and they said it was a problem with the sensor. The replacement part arrived a week or so later and they changed it free of charge.
Both times the warning came up, I had the car parked outside for several hours on a hot day with no roof over which I don't usually do. Don't know for sure but that was the only thing in common both times it happened.
Last edited by karaeloko; 11-25-2012 at 02:30 PM..
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