GM Service Manual Online
For 1990-2009 cars only

Resetting Procedure

  1. Turn the ignition to ON.
  2. Press the INFO button on the Driver Information Center (DIC) button to display ENGINE OIL LIFE.
  3. Press and hold the INFO RESET button on the DIC until the display reads 100% ENGINE OIL LIFE.
  4. The engine oil life index is now reset.

  5. Turn the ignition OFF.