Resetting the oil life on a Honda Civic is fairly straightforward. You'll typically use the trip button or navigation system. Start by turning the ignition to the "On" position without starting the engine. Press the trip button until you see "Oil Life" on the display, then hold it until it begins to blink. After that, keep pressing until it resets to 100%. It might vary slightly depending on the year of your Civic, though. Do you enjoy doing maintenance on your car, or do you usually take it to a mechanic?