2004 Chevrolet Tahoe Owner's Manual - Page 400

How to Inspect Locate the filter change indicator. When the change indicator turns black or is in the red/orange "change" zone, replace the filter and reset the indicator. To inspect the air cleaner/filter, remove the filter from the vehicle and lightly shake filter to release loose dust and dirt. If the filter remains "caked" with dirt, a new filter is required. To inspect and replace the filter and reset the indicator (if equipped), do the following: 1. Loosen the screws on the cover of the housing and lift up the cover. 2. Remove the air cleaner/filter from the housing. Care should be taken to dislodge as little dirt as possible. 3. Clean the filter sealing surface and the housing. 4. Install the new engine air cleaner/filter. 5. Reinstall the cover and tighten the screws. 6. Reset the filter change indicator, if equipped, by pressing the top button on the indicator. The air cleaner/filter assembly is located on the front corner of the engine compartment on the passenger's side of the vehicle. 5-22