I think that's the light that comes up every x number of cold warm start cycles so computer calculates and determines more less when it's time for an oil change. There is nothing wrong with your car if CEL is not lit. I'm at 35K miles and maintenance required came up 3 times already some times right on time for an oil change or in between so I call it bull crap cause it's not testing your oil viscosity or anything like that. Basically look up a youtube video on how to reset that light. I'ts basically on my car I hit the push to start once or twice without the break pedal and press something else, trip mileage I think or click few times until you see all 00000000 and it's reset. All cars do that so between my wife's car, mine and my parents I don't remember how it goes.