I have a similar problem. I wonder if it is related to me doing the CIC retrofit. I am unable to reset my Microfilter Service mileage.
When I try to reset it, instead of saying "Reset" like all the other menu items (oil, spark plugs, brake pads, etc...), it just says "OK" and then if I press the button again for a few seconds, the "OK" disappears but doesn't reset the miles. If I keep holding the button, eventually the service menu goes away.
Here are pictures of what I am describing. Has anyone else seen this problem?