Oil Life Index (OLI) and Reset
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
The Engine Oil Life Remaining mode will indicate the percentage of remaining oil life before the driver is alerted to change the oil. The PCM/ECM will transmit the class 2 message to display the CHANGE OIL SOON warning in the DIC once the remaining oil life falls below five percent. Once the oil has been changed, the engine oil life monitor needs to be reset.