Maintenance Indicator Reset

GM OIL LIFE SYSTEM - RESETTING
The GM Oil Life System calculates when to change the engine oil and the filter, based on the vehicle use. Whenever the oil is changed, the system must be reset so the next required oil changed can be calculated. If the oil is changed before the "CHANGE OIL" lamp is lit, use the following procedure:
1. Turn the ignition to "ON", with the engine off.
2. Slowly fully press and release the accelerator pedal 3 times within 5 seconds. The reset is complete when the chimes sound and the "CHANGE OIL" lamp goes out. If the lamp stays on and no chime is heard, repeat the reset procedure.
3. Turn the key to "OFF".
4. If the "CHANGE OIL" lamp comes back on when the vehicle is started, the engine oil life system has not reset. Repeat the procedure.