2011 Buick Lucern Owner's Manual - Page 409

Once a Year . Starter switch check. See Owner Checks and Services on page 7‑6. Automatic transmission shiftlock control function check. See Owner Checks and Services on page 7 ‑ 6 . Ignition transmission lock check. See Owner Checks and Services on page 7‑6. Parking brake and automatic transmission P (Park) mechanism check. See Owner Checks and Services on page 7‑6. Accelerator pedal check for damage, high effort, or binding. Replace if needed. If the vehicle has a Tire Sealant and Compressor Kit, check the sealant expiration date printed on the instruction label of the kit. See Tire Sealant and Compressor Kit on page 6‑80. Underbody flushing service. Hood/Decklid/Liftgate/Liftglass Support Gas Strut Service: Visually inspect gas strut, if equipped, for signs of wear, cracks, or other damage. Check the hold open ability of the gas strut. Contact your dealer if service is required. First Engine Oil Change After Every 40 000 km/25,000 Miles . . . . Passenger compartment air filter replacement (or every 24 months, whichever occurs first). More frequent replacement may be needed if you drive in areas with heavy traffic, areas with poor air quality, or areas with high dust levels. Replacement may also be needed if you notice reduced air flow, windows fogging up, or odors. Your dealer can help you determine when it is the right time to replace the filter. . First Engine Oil Change After Every 80 000 km/50,000 Miles . . Engine air cleaner filter replacement. See Engine Air Cleaner/Filter on page 6‑23. Automatic transmission fluid change (severe service) for vehicles mainly driven in heavy city traffic in hot weather, in hilly or mountainous terrain, when frequently towing a trailer, or used for taxi, police, or delivery service. See Automatic Transmission Fluid on page 6‑24. Evaporative control system inspection. Check all fuel and vapor lines and hoses for proper hook‐up, routing, and condition. Check that the purge valve, if the vehicle has one, works properly. . . . . 7-5