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Engine Oil Life System

Your vehicle is equipped with GM's Engine Oil Life Monitoring System. When the CHANGE ENGINE OIL message comes on, have your vehicle serviced as soon as possible within the next 600 miles. It is possible that based on driving habits and conditions; the system may not indicate that vehicle service is necessary for more than a year. However, your engine oil and filter must be changed at least once a year and at this time the system must be reset.

The necessary services, checks and inspections are grouped into two schedules: Maintenance I and Maintenance II. GM recommends starting with the Maintenance I schedule; the second should be Maintenance II, and then alternating between I and II thereafter. However, always use Maintenance II whenever the message comes on ten months or more since the last service or if the message has not come on at all for one year.

Maintenance I and II Schedules

Maintenance I Service Package

  • Perform when Change Engine Oil light comes on or within 10 months since vehicle was purchased
  • Perform when Maintenance II was last schedule used

         During Maintenance I the following services are performed:

  • Change the engine oil and filter
  • Reset oil life system
  • Inspect engine air cleaner filter - replace as needed
  • Rotate tires and check inflation pressures and wear
  • Inspect brake system
  • Check engine coolant and windshield washer fluid levels - add fluid as needed
  • Perform any needed additional services

Maintenance II Service Package

  • Perform when Maintenance I was last schedule used

         Maintenance II includes everything in the Maintenance I package plus the following
         additional items:

  • Inspect suspension and steering components
  • Inspect the engine cooling system
  • Inspect the wiper blades
  • Inspect restraint system components
  • Lubricate body components
  • Inspect the throttle system
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