Have seen this a few times but just cancelled it, along with A/c fault warning. Would not be concerned unless it is coming up repeatedly. I think sometimes the sensor gets a little jumpy if the fuel load moves quickly, as in a sharp bend, and it throws out a warning message.
I occasionally get this one, as soon as it flashes up it disappears again and the warning beep stops. This has never caused any problem. Mentioned it to the dealer who said it could be an air bubble in the fuel rail, so they allegedly bled the system, but it still happens
