I just did an oil change, plugs, and filters. What is the situation for this flashing wrench? The car needs maintenance, right? Do I set this myself to alert me? For example when 10,000 miles is up and it's time for a new oil change? I read the manual, but I don't remember anything about this flashing wrench. Do I reset it using the buttons? :think::think::think::think::think:Tell me in detail the story of the flashing wrench.