How to Replace the Battery in a Hyundai Elantra Key Fob?

2 Answers
EmmanuelLee
07/29/25 4:57pm
Steps to replace the battery in a Hyundai Elantra key fob: 1. Remove the mechanical key from inside the key fob; 2. Turn the key fob over and twist it open—it may be tight at first, so some force is needed; 3. Once you see the green chip, use a small knife or flathead screwdriver to pry it open—it might be tight the first time, so apply some force; 4. After prying open the chip, you will see the button battery—remove the old battery and replace it with a new one; 5. Reassemble the key fob by following the disassembly steps in reverse. The Hyundai Elantra features a sharply angled hexagonal front grille, complemented by chrome trim accents, along with newly designed headlights and L-shaped fog light accents, giving the car a youthful and stylish appeal. The Elantra's dashboard is tilted toward the driver's side and includes a new dual-dial instrument cluster, a redesigned three-spoke multifunction steering wheel, an 8-inch infotainment display, and a separate climate control display.
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DelJuliet
08/14/25 6:55am
As a car owner who often does minor repairs myself, I find replacing the battery in a Hyundai Elantra key fob quite simple. First, prepare a small flat-head screwdriver or a stiff card, as there's a small notch or gap on the side of the key fob that can be gently pried open to separate it. Once opened, the battery is usually in the middle, a CR2032 coin-sized battery which is inexpensive to buy at supermarkets or online stores—just make sure the positive side faces up when inserting. When removing the old battery, avoid pulling hard and be careful not to damage the spring contacts. After replacement, align the casing and snap it shut with a click. Remember to test if the buttons light up to ensure proper functionality. Doing it yourself saves dozens of dollars and teaches you a handy skill—just use tools you already have at home, no need to waste money on professional repairs.
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