Hmmm.. default is supposed to be 7000. and it's counts down to zero for change oil time.. and -100 or whichever for past due..

And let's say the reset is finicky sometimes.. changed my coupe's oil and nailed reset first shot.. took three times to reset wife's new roadster.. -4700 LOL. Dealer had just changed it when we bought.. but didn't know how.. or gave up on resetting.