Oil Life Left

Oil life left % is based on the information it receives from a class 2 message from the PCM. The IPC displays the current % of the GM Oil Life System in the trip odometer display. When the oil needs changing the change oil indicator in the message center turns on. When the engine oil is changed the oil life left % needs to be reset in the trip odometer. Press and hold the trip reset button for 1.5 seconds until 100% is displayed in the trip odometer.