Mine has done the same thing, after testing the battery and resetting the codes it came up on its own again. After they interpreted the code the dealer recently replaced the ECU under warranty- however,

It has done it again last week as a matter of fact, I have noticed my Xfire starting a little slowly in the AM, my battery is stock with a put in service date of October 2006, plus the time it sat somewhere, so the battery maybe in need of replacement.

It is still under warranty so I plan on letting the dealer know that the wing came up on its own again.

Mine won't reset until I shut it off, and then restart; at that time it will manually let me lower it until it beeps off and then it operates automatically as intended.

Thanks

Don