Mine likes to come on randomly... sort of. It likes to come on sometimes when I have half a tank, but after going a couple miles, it goes off. It also likes to stay off until I turn off the car and then start it again. I have only seen it come on while driving a handful of times. Usually it greets me in the morning while I am already almost running late for work. I really want to make a little
sticker to go over it that you can only see if the light is on.
Edit: It only has 210k miles, so I let it have its quirks.