Accepted Answer

GM Oil Life System Resetting

When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary. A CHANGE ENGINE OIL message will come on. Change the engine oil as soon as possible within the next 600 miles (1 000 km). It is possible that, if driving under the best conditions, the oil life system may not indicate that an oil change is necessary for over a year. However, the engine oil and filter must be changed at least once a year and at this time the system must be reset.

If the system is ever reset accidentally, change the engine oil at 3,000 miles (5 000 km) since last oil change.

How to Reset the Engine Oil Life System

To reset the Engine Oil Life System, do the following:

1. Press and release the TRIP/RESET button until the OIL LIFE message is displayed.
2. Then press and hold the TRIP/RESET button until a chime sounds five times, and RESET is displayed in the message center. When the system is reset, the odometer will again be displayed in the message center.
3. Turn the key to LOCK.

If the CHANGE OIL message comes back on when you start the vehicle the oil life system has not reset. Repeat the procedure.

Expert:	Dan
Pos. Feedback:	98.5 %
Accepts:
Answered:	10/8/2008

Auto Service Technician

GM ASEP A.A.S. 14 years GM experience. Mark of Excellence and Professional Guild awarded.