Ignition key in position #2. Press the "O" button on the left side of the instrument cluster twice. The time/distance remaining until service is due should be displayed. Switch the key to the off position. Press and hold the "O" button. Switch the key to position #2 again. After a few seconds you should hear an audible beep, and the display will change to indicate the reset process is complete. It may take more than one attempt.