GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Regal (China) (CNG) 🢒 General Information 🢒 Maintenance and Lubrication 🢒 Maintenance Schedule

Normal Vehicle Use

This schedule is for vehicles that:

    • Carry passengers and cargo within recommended limits. These limits are listed on the vehicle's Tire Loading Information Label located on the driver's door.
    • Are driven on reasonable road surfaces within legal driving limits.
    • Use the recommended fuel.

Maintenance Schedule Intervals

The services shown in this schedule up to 166 000 km should be performed after 166 000 km at the same intervals. The services shown at 240 000 km should be performed at the same interval after 240 000 km.

Maintanence Schedule Engine Oil Change Intervals

Footnotes

* This vehicle has an engine oil life monitor. The engine oil life monitor will show when to change the engine oil and oil filter. This will usually occur between 5 000 km and 12 500 km since the last oil change. Under severe conditions, the indicator may come on before 5 000 km .

Never drive the vehicle more than 12 500 km or 12 months without an oil and oil filter change. The system won't detect dust in the oil. So if the vehicle is driven in a dusty area, be sure to change the oil and oil filter every 5 000 km or sooner if the CHANGE OIL SOON indicator comes on. Reset the oil life monitor when the oil has been changed.

* This vehicle is equipped with an engine oil life monitor. For description and resetting information, refer to Oil Life Monitor Resetting

+ A good time to check the brakes is during tire rotation. Refer to Brake System Inspection under Explanation of Scheduled Services

Scheduled Maintenance

12 500 km

    • Check the oil life monitor. If the engine oil and filter are changed, reset the oil life monitor. Refer to Oil Life Monitor Resetting .
         *
    • Rotate the tires.
         +

25 000 km

    • Check the oil life monitor. If the engine oil and filter are changed, reset the oil life monitor. Refer to Oil Life Monitor Resetting .
         *
    • Inspect air cleaner filter if the vehicle is driven in dusty conditions. Replace the filter if necessary.
    • Replace passenger compartment air filter.
    • Rotate the tires +.
    • Inspect spark plug wires.
    • Replace spark plugs.

37 500 km

    • Check the oil life monitor. If the engine oil and filter are changed, reset the oil life monitor. Refer to Oil Life Monitor Resetting .
         *
    • Rotate the tires. +

50 000 km

    • Check the oil life monitor. If the engine oil and filter are changed, reset the oil life monitor. Refer to Oil Life Monitor Resetting .
         *
    • Replace the passenger compartment air filter.
    • Rotate the tires. +
    • Replace the air cleaner filter.
    • Inspect the fuel tank, cap and lines for damage or leaks. Inspect the fuel cap gasket for any damage. Replace parts as needed.
    • Inspect the spark plug wires.
    • Replace the spark plugs.

62 500 km

    • Check the oil life monitor. If the engine oil and filter are changed, reset the oil life monitor. Refer to Oil Life Monitor Resetting .
         *
    • Rotate the tires. +

75 000 km

    • Check the oil life monitor. If the engine oil and filter are changed, reset the oil life monitor *. Refer to Oil Life Monitor Resetting .
    • Inspect the air cleaner filter if the vehicle is driven in dusty conditions. Replace the filter if necessary.
    • Replace passenger compartment air filter.
    • Rotate the tires. +
    • Inspect the spark plug wires.
    • Replace the spark plugs.

83 000 km

Change the automatic transaxle 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 32°C (90°F) or higher.
    • In hilly or mountainous terrain.
    • When doing frequent trailer towing.
    • Uses such as found in taxi, police or delivery service.
        If the vehicle is not operated under any of these conditions, change the fluid and filter at 166 000 km.

Refer to Oil Filter and Seal Replacement.

87 500 km

    • Check the oil life monitor. If the engine oil and filter are changed, reset the oil life monitor. Refer to Oil Life Monitor Resetting .
         *
    • Rotate the tires. +

100 000 km

    • Check the oil life monitor. If the engine oil and filter are changed, reset the oil life monitor. Refer to Oil Life Monitor Resetting .
         *
    • Replace passenger compartment air filter.
    • Rotate the tires. +
    • Inspect the engine accessory drive belt.
    • Replace the air cleaner filter.
    • Inspect the fuel tank, cap and lines for damage or leaks. Inspect the fuel cap gasket for any damage. Replace parts as needed.
    • Inspect the spark plug wires.
    • Replace the spark plugs.

112 500 km

    • Check the oil life monitor. If the engine oil and filter are changed, reset the oil life monitor. Refer to Oil Life Monitor Resetting .
         *
    • Rotate the tires. +

125 000 km

    • Check the oil life monitor. If the engine oil and filter are changed, reset the oil life monitor. Refer to Oil Life Monitor Resetting .
         *
    • Inspect air cleaner filter if you are driving in dusty conditions. Replace filter if necessary.
    • Replace passenger compartment air filter.
    • Rotate the tires. +
    • Inspect the spark plug wires.
    • Replace the spark plugs.

137 500 km

    • Check the oil life monitor. If the engine oil and filter are changed, reset the oil life monitor. Refer to Oil Life Monitor Resetting .
         *
    • Rotate the tires. +

150 000 km

    • Check the oil life monitor. If the engine oil and filter are changed, reset the oil life monitor. Refer to Oil Life Monitor Resetting .
         *
    • Replace the passenger comparment air filter.
    • Replace the air cleaner filter.
    • Inspect the fuel tank, cap and lines for damage or leaks. Inspect the fuel cap gasket for any damage. Replace parts as needed.
    • Rotate the tires.  +
    • Inspect the spark plug wires.
    • Replace the spark plugs.

162 500 km

    • Check the oil life monitor. If the engine oil and filter are changed, reset the oil life monitor. Refer to Oil Life Monitor Resetting .
         *
    • Rotate the tires. +

166 000 km

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

    • In heavy city traffic where the outside temperature regularly reaches 32°C (90°F) or higher.
    • In hilly or mountainous terrain.
    • When doing frequent trailer towing.
    • Uses such as found in taxi, police or delivery service.
        If the vehicle is not operated under any of these conditions listed previously and, therefore, automatic transaxle fluid has not been changed, the fluid and filter both require changing.

240 000 km

  1. Drain, flush and refill cooling system (or every 60 months since last service, whichever occurs first).
  2. Inspect the radiator and heater hoses.
  3. Clean the radiator, condenser, pressure cap and neck. Pressure test the cooling system and pressure cap.