When the CHANGE ENGINE OIL light comes on, service is required for the vehicle. On vehicles driven under the best conditions, the engine oil life system may not indicate that vehicle service 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 engine oil life system is ever reset accidentally, the customer must have the vehicle serviced within 5 000 km (3,000 mi) since your last service. Reset the oil life system whenever you change the oil. Refer to GM Oil Life System Resetting for information on the engine Oil Life System and resetting the system.
When the CHANGE ENGINE OIL light appears, certain services and inspections are required. Required services are described in the following paragraphs for Maintenance I and Maintenance II. It is recommended that the first service on a vehicle be Maintenance I, the second service be Maintenance II and that you alternate between the two thereafter. However, in some cases, Maintenance II may be required more often.
Maintenance I: Use Maintenance I if the CHANGE ENGINE OIL light comes on within 10 months since vehicle was purchased or if Maintenance II was performed.Maintenance II: Use Maintenance II if the previous service performed was Maintenance I. Always use Maintenance II whenever the CHANGE ENGINE OIL light comes on 10 months or more since the last service or if the CHANGE ENGINE OIL light has not come on at all for one year.
Service | Maintenance I | Maintenance II |
|---|---|---|
Change the engine oil and filter. Reset the oil life system. Refer to GM Oil Life System Resetting . | X | X |
Lubricate the chassis components. Refer to footnote (2) in Maintenance Footnotes . | X | X |
Visually inspect for any leaks or damage. Refer to footnote (13) in Maintenance Footnotes . | X | X |
Inspect the engine air cleaner filter. If necessary, replace the filter. Refer to Air Cleaner Element Replacement in Engine Controls-3.6L or to Air Cleaner Element Replacement in Engine Controls-4.6L. Refer to footnote (1) in Maintenance Footnotes . | X | X |
Inspect tires for inflation pressure and wear. Refer to Tire Diagnosis - Irregular or Premature Wear in Tires and Wheels. | X | X |
Inspect the brake system. Refer to footnote (3) in Maintenance Footnotes . | X | X |
Inspect the engine coolant and the windshield washer fluid levels. Add fluid as needed. | X | X |
Perform any needed additional services. Refer to Additional Required Services . | X | X |
Inspect the suspension and steering components. Refer to footnote (4) in Maintenance Footnotes . | -- | X |
Inspect the engine cooling system. Refer to footnote (5) in Maintenance Footnotes . | -- | X |
Inspect the wiper blades. Refer to footnote (6) in Maintenance Footnotes . | -- | X |
Inspect the restraint system components. Refer to footnote (7) in Maintenance Footnotes . | -- | X |
Lubricate the body components. Refer to footnote (8) in Maintenance Footnotes . | -- | X |
Inspect the transmission fluid level and add fluid as needed. | -- | X |
