How to Replace the Battery in a Hyundai Elantra Car Key?
2 Answers
Modern Elantra car key battery replacement method is: 1. Pull out the mechanical key, you will see a gap in the middle of the plastic shell, use a flat screwdriver to pry it open; 2. Remove the old battery and replace it with a new one, paying attention to the installation direction of the positive and negative poles; 3. After replacement, firmly press the separated key parts together to close. Taking the 2016 Hyundai Elantra as an example, it belongs to the compact car category, with body dimensions of: length 4570mm, width 1775mm, height 1445mm, wheelbase 2700mm, fuel tank capacity 50l, curb weight 1233kg. The 2016 Hyundai Elantra features a front suspension of MacPherson independent suspension, rear suspension of torsion beam non-independent suspension, equipped with a 1.6L naturally aspirated engine, maximum horsepower 128ps, maximum power 93.8kw, maximum torque 156nm, matched with a 6-speed manual transmission.
I just replaced the key battery for my 2017 Elantra, and it was quite easy. First, I bought a CR2032 button battery at a stationery store for just a few yuan. On the side of the car key, there's a small slot—just use a coin or your fingernail to pry it open along the groove, and the back cover pops off. Be careful not to use too much force, as the plastic clips are quite fragile. Then, remove the old battery, place the new battery with the printed side facing up, and you'll hear a click when it snaps into place. Finally, align the back cover and press it back on, then test the lock/unlock buttons—if the red light turns on, you're done. The whole process takes less than three minutes, saving over 200 yuan compared to going to a 4S shop. It's recommended to replace it every two years to avoid sudden power loss causing inconvenience.
