Outback same issue: cruise control light blinks check engine & VDC OFF lit. Why?

What is your question?

2007 Subaru Outback: After filling up with gas yesterday with triple digit outdoor temperature, the check engine light and Vehicle Dynamics Control OFF light came on constantly and the cruise control light blinks. I knew to check the gas cap to be sure it was properly closed but the two lights continue and cruise light blinks. I have driven far enough that if the gas cap was cause, the problem should have corrected by now. I have noticed same problem from others so want to know what the diagnosis was for this issue. I have appointment tomorrow for dealer to check but would like a heads up before then,

What makes this problem better or worse?

No change

How long has your 2007 Subaru Outback had this problem?

yesterday