When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary. A CHANGE ENGINE OIL SOON message will come on. Here is how you will need to reset the system. There are 2 wys to do so. Good luck!Using the Radio
Follow this procedure to reset the GM Oil Life System. TM:
Follow this procedure to reset the GM Oil Life System TM:
If the CHANGE ENGINE OIL message flashes, the system is reset. However, if it stays on , it did not reset. Repeat the procedure.