Buick Regal Owners & Service Manuals

Buick Regal: Maintenance Schedule

Owner Checks and Services

At Each Fuel Stop

  • Check the engine oil level.

Once a Month

  • Check the tire inflation pressures.
  • Inspect the tires for wear.
  • Check the windshield washer fluid level.

Engine Oil Change

When the CHANGE ENGINE OIL SOON message displays, have the engine oil and filter changed within the next 1 000 km/600 mi. If driven under the best conditions, the engine oil life system may not indicate the need for vehicle service for up to a year. The engine oil and filter must be changed at least once a year and the oil life system must be reset. Your trained dealer technician can perform this work.

If the engine oil life system is reset accidentally, service the vehicle within 5 000 km/3,000 mi since the last service. Reset the oil life system when the oil is changed.

Tire Rotation and Required Services Every 12 000 km/ 7,500 mi

Rotate the tires, if recommended for the vehicle, and perform the following services.

  • Check engine oil level and oil life percentage. If needed, change engine oil and filter, and reset oil life system.
  • Check engine coolant level.
  • Check windshield washer fluid level.
  • Visually inspect windshield wiper blades for wear, cracking, or contamination. Replace worn or damaged wiper blades.
  • Check tire inflation pressures.
  • Inspect tire wear.
  • Visually check for fluid leaks.
  • Inspect engine air cleaner filter.
  • Inspect brake system.
  • Visually inspect steering, suspension, and chassis components for damaged, loose, or missing parts or signs of wear.
  • Check restraint system components.
  • Visually inspect fuel system for damage or leaks.
  • Visually inspect exhaust system and nearby heat shields for loose or damaged parts.
  • Lubricate body components.
  • Check starter switch.
  • Check automatic transmission shift lock control function.
  • Check parking brake and automatic transmission park mechanism.
  • Check accelerator pedal for damage, high effort, or binding.

    Replace if needed.

  • Visually inspect gas strut for signs of wear, cracks, or other damage. Check the hold open ability of the strut. If the hold open is low, service the gas strut.
  • Check tire sealant expiration date, if equipped.
  • Inspect sunroof track and seal, if equipped.

Footnotes - Maintenance

Footnotes - Maintenance Schedule Additional Required Services - Normal

  1. Or every two years, whichever comes first. More frequent passenger compartment air filter replacement may be needed if driving in areas with heavy traffic, poor air quality, high dust levels, or environmental allergens.

    Passenger compartment air filter replacement may also be needed if there is reduced airflow, window fogging, or odors. Your GM dealer can help determine when to replace the filter.

  2. Visually check all fuel and vapor lines and hoses for proper attachment, connection, routing, and condition.
  3. Or every four years, whichever comes first. If driving in dusty conditions, inspect the filter at each oil change or more often as needed.
  4. Or every five years, whichever comes first.
  5. Or every 10 years, whichever comes first. Inspect for fraying, excessive cracking, or damage; replace, if needed.
  6. Replace brake fluid every three years.

Footnotes - Maintenance

Footnotes - Maintenance Schedule Additional Required Services - Severe

  1. Or every two years, whichever comes first. More frequent passenger compartment air filter replacement may be needed if driving in areas with heavy traffic, poor air quality, high dust levels, or environmental allergens.

    Passenger compartment air filter replacement may also be needed if there is reduced airflow, window fogging, or odors. Your GM dealer can help determine when to replace the filter.

  2. Visually check all fuel and vapor lines and hoses for proper attachment, connection, routing, and condition.
  3. Or every four years, whichever comes first. If driving in dusty conditions, inspect the filter at each oil change or more often as needed.
  4. Or every five years, whichever comes first.
  5. Or every 10 years, whichever comes first. Inspect for fraying, excessive cracking, or damage; replace, if needed.
  6. Replace brake fluid every three years.

Special Application Services

  • Severe Commercial Use Vehicles Only: Lubricate chassis components every oil change.
  • Have underbody flushing service performed.

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