I went in last week to get my free oil change following my car's first birthday.

After I got back from Portland, I noticed the computer hadn't been reset to reflect the added miles before the next oil change.

I called up my SA today to check on that and she told me that the computer isn't reset when you get an anniversary oil change. And so I can get another service check and oil change when I go another 3,200 miles.

I didn't realize that.

 

I've never gone 12 months without coming due for a service, but I guess that makes sense.

If the dealer is only changing the oil because it's been a year, and not doing any of the other maintenance that normally goes along with an OBC-dictated service visit, they shouldn't reset the OBC counter, because that would just further delay all of the other checks/services that weren't done.