How to Replace the Battery for a 2018 Hyundai ix35 Key?

[RileyMarie]

Steps to replace the Hyundai ix35 key battery: 1. Press the key button and pull out the mechanical key. 2. Insert the mechanical key halfway into the key slot and pry upward to open the cover. 3. Once the key cover is open, you can see the position of the old battery. A flat-head screwdriver can help remove the old battery more easily. 4. Ensure the new battery is placed with the positive side facing up. 5. Reassemble the key in the correct order. 6. Test the key functions to ensure they work properly. Precautions for battery replacement: 1. Improper battery replacement may damage the car key. 2. Using an unsuitable or non-compliant battery may damage the car key. Only replace the old battery with a new one of the same rated voltage, size, and specifications. 3. If you are unsure how to replace the key battery, visit a 4S store for assistance. 4. Avoid using the key outside its operational range, as excessive use beyond the range may cause the key to fail. 5. To prevent reduced key sensitivity, do not place the key within 1 meter of a magnetic field source for extended periods. 6. Dry your hands before disassembly, as moisture can cause the battery to rust.

[VonTaylor]

I previously drove an 18-model Hyundai ix35, and replacing the key battery is actually quite simple. There are small gaps on both sides of the key, which can be gently pried open using a coin or a small screwdriver—just be careful not to apply too much force and damage the clips. Once opened, you'll see a small round battery, typically a CR2032 button cell, which can be bought for a few dollars at a supermarket or online. When removing the old battery, pay attention to the positive and negative sides. Insert the new battery with the positive side facing up (the side marked with a + sign). Press the cover firmly until you hear a click, indicating it's securely locked. Then test the remote by pressing the lock or unlock button to check its response. If it doesn’t work, you may need to re-pair the key. It’s advisable to keep a spare battery in the car to avoid being stranded with a dead battery—this method is hassle-free and cost-effective. I do it this way every time, and it takes about ten minutes.

[Santana]

As an average car owner, my method for replacing the battery in an 18-model Hyundai ix35 key is to find a quiet corner to do it. The key has a thin edge gap, and a coin can easily pry it open (avoid using metal tools to prevent scratches). Inside, there's a small silver battery labeled CR2032—make sure to buy this exact model at the supermarket. Remove the old battery, insert the new one with the positive side facing up, close the cover, and press the buttons to test if the remote works. If it still doesn't function after replacement, there might be dust on the key contacts—gently clean them with a cotton swab. Otherwise, you may need to visit a 4S shop to check for battery compartment issues. Always keep the key dry to prevent short circuits, and regular checks can help avoid sudden power failures.

[DiAlana]

Replacing the battery for an 18-model Hyundai ix35 key is super easy! Pry open the gap at the tail of the key with a small knife or your fingernail, remove the old CR2032 battery (make sure not to get the model wrong), replace it with a new one ensuring the positive side faces up, then close the cover and test the buttons. Doing it yourself saves the cost of a repair shop, and watching online tutorials a few times will help you get the hang of it faster. It's recommended to choose high-quality battery brands to avoid frequent replacements. If the remote stops working after replacement, check if the contacts are aligned. The whole process takes just two minutes, is low-cost and fun, but remember to handle the parts gently—don't force them apart.