Engine Checked: So I contact Toyota about my check engine light being on and the first thing out of the woman's mouth was, "Is your gas cap on tight? The check engine light will come on when the gas cap is loose."
Toyota employs tens of thousands of people, many of whom have vast experience in the auto industry, but apparently not a single one of them grasps the obvious fact that the gas cap is NOT PART OF THE ENGINE!
The gas cap wasn't the problem for me, but to make things even more irrational, the light went off just a randomly as it went on. Throw me a bone, people.