Follow this procedure to reset the GM Oil Life System™

1. Turn the ignition to RUN, with the engine off.
2. Fully press and release the accelerator pedal three times within five seconds.
3. If the CHANGE OIL SOON light flashes, the system is resetting.
4. Turn the key to OFF after the light has finished flashing, then start the vehicle.
5. If the CHANGE OIL SOON light comes back on, the engine oil life system did not reset. Repeat the procedure.

1. Press the MODE button until the light appears next to OIL LIFE.
2. Press and hold the RESET button for three seconds. The oil life percentage should change to 100 percent.