I perform all my own maintenance, have bought, the WIS DVD manual, I can read codes, but I thought being new to this forum someone out there could give me the secret to reseting the maintenance interval. I also have 2 documented malfunctions. How do we clear and or reset the maintenance interval and previous malfunction codes. P.S. the voltage regulator was faulty, whic explains the malfunctions. I ran it until it killed tha battery. I repalced the battery, and voltage regulator and have no error codes but the last piece of my puzzle is to reset the interval and memorized malfunctions. Thx in advanced to anyone who wants to help save me some time. If not I'll continue to learn how to navigate through the WIS manual until I figure it out.