GM Service Manual Online
For 1990-2009 cars only

The following services should be performed at the first maintenance service (I or II) after the indicated miles (kilometers) shown for each item.

Additional Required Services

Service and Miles (Kilometers)

25,000 (41 500)

50,000 (83 000)

75,000 (125 000)

100,000 (166 000)

125,000 (207 500)

150,000 (240 000)

Inspect fuel system for damage or leaks.

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Inspect exhaust system for loose or damaged components.

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Vehicles without a filter restriction indicator: Replace engine air cleaner filter. See Engine Air Cleaner/Filter . An Emission Control Service.

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Change automatic transmission fluid and filter (severe service). See footnote (h).

 

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Change automatic transmission fluid and filter (normal service).

 

 

 

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Change transfer case fluid. See footnote (g).

 

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Inspect evaporative control system. An Emission Control Service. See footnotes † and (k).

 

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Replace spark plugs and inspect spark plug wires. An Emission Control Service.

 

 

 

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Engine cooling system service (or every 5 years, whichever occurs first). An Emission Control Service. See footnote (i).

 

 

 

 

 

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Inspect engine accessory drive belt. An Emission Control Service.

 

 

 

 

 

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