How do you change air filter in 2001 LeSabre?

Hello: You must first remove the battery. There is a clip on the front side of the battery that holds the bottom rim of the battery down. Unscrew the nut, remove the clip and slide the battery up and out. (First disconnect the cables) Then, there are four clips that hold the lid of the air cleaner compartment to the base. Unsnap these and the top comes off. Careful, the clips can fall off and are hard to reistall. Remove the old filter, and clean out the compartment, remove dust and dirt, and install new filter. Reverse the above steps and you are done.