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

1. Turn the ignition to RUN but the engine off.
2. Fully press and release the accelerator pedal slowly three times within five seconds.
3. If the CHANGE OIL SOON light flashes, the system is resetting.
4. Turn the key to OFF.
5. Start the vehicle.
6. The oil life will change to 100%.
7. If the Change Oil Soon light come back on, the system has not reset. Repeat the procedure.

1. Put the oil life display ON, with the engine off.
2. Press the DIC RESET button for five seconds.