GM Service Manual Online
For 1990-2009 cars only

The services shown in this schedule up to 100,000 miles (166 000 km) should be repeated after 100,000 miles (166 000 km) at the same intervals for the life of this vehicle. The services shown at 150,000 miles (240 000 km) should be repeated at the same interval after 150,000 miles (240 000 km) for the life of this vehicle.

See Part B: Owner Checks and Services and Part C: Periodic Maintenance Inspections .

Footnotes

The U.S. Environmental Protection Agency or the California Air Resources Board has determined that the failure to perform this maintenance item will not nullify the emission warranty or limit recall liability prior to the completion of the vehicle's useful life. We, however, urge that all recommended maintenance services be performed at the indicated intervals and the maintenance be recorded.

# Lubricate the front suspension, ball joints, steering linkage, parking brake cable guides, propshaft splines, universal joints and brake pedal springs.

+ A good time to check your brakes is during tire rotation. See Brake System Inspection .

** Drive axle service. See Part D: Recommended Fluids and Lubricants for proper lubricant to use.

    • Check fluid level and add fluid as needed.
    • If your vehicle has a locking differential, drain fluid and refill at first engine oil change.

7,500 Miles (12 500 km)

       • 

    Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.

       • 

    Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.)

       • 

    Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.)

       • 

    Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)

15,000 Miles (25 000 km)

       • 

    Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.

       • 

    Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.)

       • 

    Inspect engine air cleaner filter. If necessary, replace the filter. If vehicle is driven in dusty/dirty conditions, inspect filter at every engine oil change. See Engine Air Cleaner/Filter for more information.

       • 

    Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.)

       • 

    Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions:

    In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher.

    In hilly or mountainous terrain.

    When doing frequent trailer towing.

    Uses such as found in taxi, police, or delivery service.

If you do not use your vehicle under any of these conditions, change the fluid and filter every 50,000 miles (83 000 km).

       • 

    Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)

22,500 Miles (37 500 km)

       • 

    Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.

       • 

    Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.)

       • 

    Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.)

       • 

    Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)

30,000 Miles (50 000 km)

       • 

    Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.

       • 

    Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.)

       • 

    Inspect engine air cleaner filter. If necessary, replace the filter. If vehicle is driven in dusty/dirty conditions, inspect filter at every engine oil change. See Engine Air Cleaner/Filter for more information.

       • 

    Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.)

       • 

    Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions:

    In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher.

    In hilly or mountainous terrain.

    When doing frequent trailer towing.

    Uses such as found in taxi, police, or delivery service.

If you do not use your vehicle under any of these conditions, change the fluid and filter every 50,000 miles (83 000 km).

       • 

    Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)

       • 

    Replace fuel filter. An Emission Control Service. (See footnote †.)

37,500 Miles (62 500 km)

       • 

    Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.

       • 

    Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.)

       • 

    Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.)

       • 

    Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)

45,000 Miles (75 000 km)

       • 

    Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.

       • 

    Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.)

       • 

    Replace engine air cleaner filter. See Engine Air Cleaner/Filter for more information.

       • 

    Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.)

       • 

    Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions:

    In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher.

    In hilly or mountainous terrain.

    When doing frequent trailer towing.

    Uses such as found in taxi, police, or delivery service.

If you do not use your vehicle under any of these conditions, change the fluid and filter every 50,000 miles (83 000 km).

       • 

    Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)

50,000 Miles (83 000 km)

       • 

    If you have not used your vehicle under severe conditions listed previously and, therefore, have not changed your automatic transmission fluid, change both the fluid and filter. Manual transmission fluid does not require change.

       • 

    Automatic Transfer Case Only: Change transfer case fluid.

52,500 Miles (87 500 km)

       • 

    Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.

       • 

    Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.)

       • 

    Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.)

       • 

    Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)

60,000 Miles (100 000 km)

       • 

    Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.

       • 

    Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.)

       • 

    Inspect engine air cleaner filter. If necessary, replace the filter. If vehicle is driven in dusty/dirty conditions, inspect filter at every engine oil change. See Engine Air Cleaner/Filter for more information.

       • 

    Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.)

       • 

    Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions:

    In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher.

    In hilly or mountainous terrain.

    When doing frequent trailer towing.

    Uses such as found in taxi, police, or delivery service.

If you do not use your vehicle under any of these conditions, change the fluid and filter every 50,000 miles (83 000 km).

       • 

    Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)

       • 

    Replace fuel filter. An Emission Control Service. (See footnote †.)

67,500 Miles (112 500 km)

       • 

    Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.

       • 

    Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.)

       • 

    Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.)

       • 

    Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)

75,000 Miles (125 000 km)

       • 

    Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.

       • 

    Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.)

       • 

    Inspect engine air cleaner filter. If necessary, replace the filter. If vehicle is driven in dusty/dirty conditions, inspect filter at every engine oil change. See Engine Air Cleaner/Filter for more information.

       • 

    Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.)

       • 

    Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions:

    In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher.

    In hilly or mountainous terrain.

    When doing frequent trailer towing.

    Uses such as found in taxi, police, or delivery service.

If you do not use your vehicle under any of these conditions, change the fluid and filter every 50,000 miles (83 000 km).

       • 

    Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)

82,500 Miles (137 500 km)

       • 

    Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.

       • 

    Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.)

       • 

    Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.)

       • 

    Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)

90,000 Miles (150 000 km)

       • 

    Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.

       • 

    Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.)

       • 

    Replace engine air cleaner filter. See Engine Air Cleaner/Filter for more information.

       • 

    Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.)

       • 

    Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions:

    In heavy city traffic where the outside temperature regularly reaches 90°F (32°C) or higher.

    In hilly or mountainous terrain.

    When doing frequent trailer towing.

    Uses such as found in taxi, police, or delivery service.

If you do not use your vehicle under any of these conditions, change the fluid and filter every 50,000 miles (83 000 km).

       • 

    Replace fuel filter. An Emission Control Service. (See footnote †.)

       • 

    Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)

97,500 Miles (162 500 km)

       • 

    Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service.

       • 

    Lubricate chassis components (or every 12 months, whichever occurs first). (See footnote #.)

       • 

    Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.)

       • 

    Rotate tires. See Tire Inspection and Rotation for proper rotation pattern and additional information. (See footnote +.)

100,000 Miles (166 000 km)

       • 

    Inspect spark plug wires. An Emission Control Service.

       • 

    Replace spark plugs. An Emission Control Service.

       • 

    If you have not used your vehicle under severe service conditions listed previously and, therefore, have not changed your automatic transmission fluid, change both the fluid and filter. Manual transmission fluid does not require change.

       • 

    Automatic Transfer Case Only: Change transfer case fluid.

       • 

    Inspect Positive Crankcase Ventilation (PCV) valve. An Emission Control Service.

150,000 Miles (240 000 km)

       • 

    Drain, flush, and refill cooling system (or every 60 months since last service, whichever occurs first). This service can be complex; you should have your dealer perform this service. See Engine Coolant for what to use. Inspect hoses. Clean radiator, condenser, pressure cap, and neck. Pressure test the cooling system and pressure cap. An Emission Control Service.

       • 

    Inspect engine accessory drive belt. Visually inspect belt for fraying, excessive cracks, or obvious damage. Replace belt if necessary. An Emission Control Service.