Where do you fill the transmission fluid on an 02 Hyundai Elantra 5 speed?

The transmission fluid in an 02 Hyundai Elantra 5-speed is added through a fill plug located on the side of the transmission. To add fluid, you will need a funnel and a quart of the recommended transmission fluid. Locate the fill plug, remove it, and insert the funnel. Add enough fluid until it begins to drip out of the fill hole. Replace the fill plug and check the fluid level using the dipstick.