2010 Buick Lucerne Owner's Manual - Page 324

To inspect or replace the filter: To reinstall the cover: 1. Align the two hinges located on the inboard side of the cover. 2. Push the cover slightly down and towards the engine to engage the tabs in the hinges and align the two screws. 3. Tighten the two screws on the top of the engine air cleaner/filter cover. { WARNING: Operating the engine with the air cleaner/filter off can cause you or others to be burned. The air cleaner not only cleans the air; it helps to stop flames if the engine backfires. Use caution when working on the engine and do not drive with the air cleaner/filter off. Notice: If the air cleaner/filter is off, dirt can easily get into the engine, which could damage it. Always have the air cleaner/filter in place when you are driving. 1. Remove the two screws on the top of the engine air cleaner/filter cover. 2. Lift up the outboard side of the cover at an angle while pulling toward you. This is necessary due to the two hinges located on the inboard side of the cover. 3. Remove the engine air cleaner/filter and any loose debris that may be found in the air cleaner base. 4. Inspect or replace the air filter element. 6-22