2004 Chevrolet Monte Carlo Owner's Manual - Page 279

After changing the engine oil, the system must be reset. To reset the CHANGE ENGINE OIL message use one of the following procedures: 8. Press the TUNE DISP knob to exit programming. A chime will be heard to verify the exit. 9. Turn the key to OFF. If the CHANGE ENGINE OIL message comes back on when you start your vehicle, the engine oil life system has not reset. Repeat the procedure. Using the Radio 1. Turn the ignition to ACC or ON, with the radio off. 2. Press and hold the TUNE DISP knob on the radio for at least five seconds until SETTINGS is displayed. 3. Press the SEEK PSCAN up or down arrow to scroll through the main menu. 4. Scroll until OIL LIFE appears on the display. 5. Press the 1 PREV or 2 NEXT buttons to enter the submenu. RESET will be displayed. 6. Press the TUNE DISP knob to reset. A chime will be heard to verify the new setting and DONE will be displayed for one second. 7. Once the indicator has been reset, scroll until EXIT appears on the display. Using the Accelerator Pedal 1. Turn the ignition to ON, with the engine off. 2. Fully press and release the accelerator pedal slowly three times within five seconds. If the CHANGE ENGINE OIL message flashes, the system is reset. However, if it stays on, it did not reset. Repeat the procedure. 3. Turn the key to OFF. If the CHANGE ENGINE OIL message comes back on when you start your vehicle, the engine oil life system has not reset. Repeat the procedure. 5-23