How to Replace the Battery in a Hyundai Elantra Key?

[Edmund]

The battery type for the Elantra: CR2032. Follow these steps to replace the battery: 1. Insert a thin tool into the slot and gently pry open the remote cover. 2. Remove the old battery and install the new one, ensuring correct battery placement. 3. Reattach the remote key cover. Additional details: 1. If you suspect the remote key is damaged or not functioning properly, consult an authorized Hyundai dealer. Improper disposal of batteries can harm the environment and human health; dispose of them according to local laws and regulations. 2. Each vehicle can register up to 2 smart keys. If a smart key is lost, immediately take the vehicle and remaining keys to an authorized Hyundai dealer. Towing may be required if necessary. 3. If a smart key is placed too close to a mobile phone, the phone's normal operation signals may interfere with the key's signals, especially during calls, texting, or sending/receiving emails. Avoid storing the smart key and mobile phone in the same pocket or jacket; maintain sufficient distance between the two devices.

[DePeyton]

I've been driving a Hyundai Elantra for several years, and changing the key fob battery is quite simple. First, use a small flathead screwdriver to remove the tiny screw on the back of the key. If there's no screw, just pry open the casing with your fingernail or a plastic pry tool—avoid using metal to prevent scratches. Once opened, you'll see the coin cell battery inside, usually a CR2032 model. Note the positive/negative orientation before removing the old battery. New batteries can be bought at supermarkets or stationery stores for about one yuan. When installing the new battery, make sure the positive side faces upward, gently press it in, then reassemble the casing and tighten the screw. After assembly, test the buttons to ensure they work. If it still doesn't function, there might be contact issues or the key might be damaged. To extend battery life, avoid dropping the key or exposing it to high temperatures—typically, the battery lasts one to two years before needing replacement.

[DelBentley]

I've personally replaced the battery in my Hyundai Elantra key fob, and the steps are straightforward but require care. First, check if there are any small screws on the back of the key. If there are, use a small screwdriver to remove them. If not, gently pry open the plastic shell using your fingernail or a credit card. Once opened, remove the old battery—it’s a round CR2032—and remember its original orientation to avoid installing the new one upside down. You can easily buy a new battery at a convenience store, but avoid cheap knockoffs. Insert the new battery and press it firmly into place, then reassemble the shell and test the lock button to ensure it works. Be careful not to force the shell open, as it may damage the seams. The whole process takes about five minutes. To prolong battery life, avoid storing the key in humid places and minimize unnecessary button presses—this can add a few extra months of usage.

[Dianne]

To replace the Hyundai Elantra key battery, follow these steps: Use a small screwdriver to open the key shell or simply pry it open. Remove the old CR2032 battery, paying attention to the positive side. Insert the new battery, press it firmly, reassemble the shell, and test the buttons. When purchasing a new battery, choose the CR2032 model, which is commonly available in stores. After replacement, it will work normally—simple and straightforward. Before the battery dies, the buttons may become sluggish, so it's wise to have a spare ready for peace of mind. Keep the key dry, avoid soaking or dropping it to extend its lifespan, and replace it approximately once a year.

[LeGia]

I've replaced the battery in my Hyundai Lingdong car key and want to remind everyone to prioritize safety. First confirm the key has no power when buttons don't respond, then close all car windows and doors before operating to avoid accidents. Use a flat-head screwdriver to open the casing, remove the old CR2032 battery while noting the polarity to avoid reversal. Use genuine brand new batteries to prevent leakage risks, install correctly and press firmly before reassembling the cover, then test to ensure normal functionality. Avoid excessive force during the process to prevent scratching hands or damaging the key's plastic casing - referring to tutorial videos is very helpful. The battery is typically CR2032 model, available affordably and reliably through online shopping or auto shops. Regularly check your car key's condition to prevent roadside emergencies.