Scheduled Maintenance

SCHEDULED MAINTENANCE
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 previously 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.