1998 GMC Suburban Owner's Manual - Page 311

To remove the air filter, unhook the retainer clips and remove the cover. Lift the filter and the connected duct out of the air cleaner housing.Hold the duct and remove the filter by both pulling and twisting the filter away from the duct. Care should be taken to dislodge as little dirt a s possible. Clean the filter sealing surface of the duct and the filter housing. Install the new filter by pushing it all the way to the stop on the duct. Install the duct and the filter into the air cleaner housing. Make sure that the duct fits properly into the housing. Install the cover and fasten the two retaining clips. After the air filter is properly serviced, the indicator should be reset. Push the button on top of the indicator to reset it to the green (clean) filterzone. 6-19