Where is the transmission filter for a 2005 Hyundai Elantra?

The transmission filter for a 2005 Hyundai Elantra is located inside the transmission oil pan. To access it, you'll need to remove the transmission pan, which involves draining the Transmission Fluid and unbolting the pan. Once the pan is off, you can replace the filter, which is typically clipped or bolted in place. Be sure to use a new gasket when reassembling the pan to prevent leaks.