Avoid expensive dealer service charges and easily replace your key fob battery yourself! Compatible with all Hyundai Elantra (2001-2023) key fobs. May be compatible with other Hyundai models but check your owner's manual before purchasing. Now let's cover how to replace the battery in your Hyundai [insert model name] key fob with ease: 1. If you drive a newer Hyundai model, you will open your key fob differently. Begin by removing the metal key by pressing and holding the metal tab or button. Next, use the metal key to open the back cover on your key fob by inserting it into the small opening and turning it in either direction. The case should pop right open. 2. If you drive an older Hyundai model, you will begin by finding a small notch or indent along the side of your key fob. Then, use a coin or a flat blade screwdriver to gently pop open the key fob from the notch by turning it in either direction. 3. Now that you have your key fob open, carefully lift the circuit board to expose the battery. Take a photo or a note of how the battery is laying in the key fob before removing it. This will make placing the new battery easier. 4. With your Hyundai key fob battery replacement, place it into your key fob using your photo as a reference. Ensure that the battery is making contact with all the appropriate connections. 5. Align the top and bottom of the key fob and gently snap the two sides back together. If you removed a metal key earlier, make sure to replace it when your keyfob is back together. 6. Test your key fob to ensure it is working properly by locking/unlocking the doors and please contact us if you need assistance. Don't let a dead key fob battery leave you stranded. Stock up on our premium key fob replacement batteries today.