Follow this procedure to reset the GM Oil Life System™:

1. Turn the ignition to ON.
2. Press the TRIP button on the driver information center (DIC) switch to view various menu choices and stop on OIL LIFE REMAINING.

A message will display the percentage of oil life remaining.

3. Press and hold the RESET button on the DIC switch for at least 2 seconds.

A message will display the percentage of oil life remaining as 99 percent. The engine oil life monitor is now reset.

4. Turn the ignition OFF.