My CHANGE OIL light has been on since I bought the car. I changed the oil and follwed the steps to turn the change oil light off, it did not work. I have found that the GAUGES button does not function at all. Where do I start trying to find the issue? Should I do a CCM diagnosis or something else? Maybe a fuse that I am not seeing is blown somewhere? Hope for some info so I can correct another PO issue.