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.

Service

25,000 miles (41,500 km)

50,000 miles (83,000 km)

75,000 miles (125,000 km)

100,000 miles (166,000 km)

125,000 miles (207,500 km)

150,000 miles (240,000 km)

Inspect fuel system for damage or leaks.

X

X

X

X

X

X

Inspect exhaust system for loose or damaged components.

X

X

X

X

X

X

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

 

X

 

X

 

X

Change automatic transmission fluid and filter (normal service).

 

 

 

X

 

 

Change transfer case fluid. Refer to footnote (g).

 

X

 

X

 

X

Replace engine air cleaner filter. Refer to Air Cleaner Element Replacement . An Emission Control Service.

 

 

 

X

 

 

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

 

 

 

X

 

 

Inspect positive crankcase ventilation (PCV) valve. An Emission Control Service.

 

 

 

X

 

 

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

 

 

 

 

 

X

Inspect engine accessory drive belt. An Emission Control Service.

 

 

 

 

 

X