Maintenance Indicator Reset
GM OIL LIFE SYSTEM - RESETTING
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.
WITH TRIP COMPUTER
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".