The CHANGE OIL SOON light should come on briefly as a bulb check when the engine is started. If the light does not come on, have it serviced.

If the CHANGE OIL SOON light comes on and stays on after the engine is started, have the oil changed.

For additional information, see "When to Change Engine Oil (GM Oil Life System)" and "How to Reset the CHANGE OIL SOON Light " under Engine Oil .