Oil-Life Reset

The engine control module (ECM) sends the oil life remaining percentage to the body control module (BCM) via a serial data message. The driver information center (DIC) receives a GMLAN serial data message from the BCM indicating the remaining oil life. The DIC displays the current percentage of the GM Oil Life System as determined by the ECM. When the oil life remaining percentage drops below 10 percent, the DIC displays CHANGE ENGINE OIL. When the engine oil is changed, reset the engine oil life in order to clear the oil life remaining percentage display. Press and hold the RESET/SELECT button for 5 seconds until the DIC acknowledges.