How to Replace the Battery in a 2018 Hyundai ix35 Remote Key?
2 Answers
Steps to replace the battery in a 2018 Hyundai ix35 remote key: 1. Press the silver round button on the car key; 2. While holding the car key, pull out the top part to remove the mechanical key, which is used for manual door opening; 3. After removing the mechanical key, you will see a small groove—use a screwdriver or another hard object to pry it open; 4. Once a gap appears in the key cover, manually pry it open; 5. The opened key will be divided into two parts: one half contains the battery, and the other half is the circuit board. Simply remove the old battery and replace it with a new one (pay attention to the battery orientation to avoid installing it backward); 6. Finally, reattach the cover and insert the mechanical key back in place to complete the battery replacement. The Hyundai ix35 is a compact SUV under the Hyundai brand, with dimensions of 4435mm in length, 1850mm in width, and 1680mm in height, and a wheelbase of 2640mm.
I remember changing the battery for the 2018 Hyundai ix35's remote key was quite simple. Last time, my key stopped working after two years, and I replaced it myself. The key is a flip-open type; you can find the seam in the middle, and with a small coin or screwdriver, gently pry it open. It uses a CR2032 coin battery, which you can buy for a few dollars at a supermarket or auto parts store. When removing the old battery, remember the positive and negative orientation to avoid installing it backward. Place the new battery in the same position. When closing the cover, align the clips and press until you hear a click to lock it securely. After replacement, test the lock and unlock buttons to ensure they work properly. If it still doesn’t work, check if the battery contacts are loose or dirty—cleaning them occasionally helps. DIY replacement saves time and money, averaging once every two years, which can extend the key's lifespan.
