How do you replace the cabin air filter in a 2002 Cadillac Eldorado etc?

To replace the cabin air filter in a 2002 Cadillac Eldorado, first, locate the filter housing, which is typically behind the glove compartment. Remove the glove compartment by detaching the screws or clips, then pull it down to access the filter cover. Open the cover and slide out the old filter, noting the airflow direction. Insert the new filter in the same orientation, close the cover, and reattach the glove compartment.