My '05 MCS isn't showing the Oil Service Interval, even when I hold the button and turn the key. Would this be a dealer shut off in the computer? It does show the Service Interval, but not the oil change interval.

A second, unrelated question, Does anyone know if there is a manufacturer for replacement flow through rear panels (the ones within the rear bumper)? It seems like they should be open to allow extraction of air from underneath, it might also aid in eliminating the 'Dirty Butt' syndrome