How to Replace the Battery in a Beijing Hyundai Mistra Key
2 Answers
Beijing Hyundai Mistra key battery replacement method is: 1. Press the silver button on the key to remove the mechanical key; 2. Use a screwdriver to pry open the key or partially insert the mechanical key into the slot and pry upward to open the key cover; 3. Use a screwdriver to remove the old battery and replace it with a new one, inserting the new battery with the positive side up, then reassemble the key in reverse order. Taking the 2021 Beijing Hyundai Mistra 1.8L CVT GLX Elite Edition as an example: it is a 4-door, 5-seater sedan equipped with a CVT continuously variable transmission, with dimensions of 4780mm in length, 1815mm in width, and 1460mm in height, reaching a top speed of 202 kilometers per hour.
I've changed the key battery for my Beijing Hyundai Mistra several times, and it's quite simple but requires some care. There's usually a small seam on the back of the key. Find it and gently pry it open with a flat-head screwdriver or a thin plastic card, being careful not to use too much force to avoid damaging the plastic shell. Once opened, you'll see a small round battery inside, model CR2032. Remember the positive and negative orientation, remove the old battery and set it aside, and when inserting the new battery, make sure the positive side faces up to match the slot. After closing the shell, press the key buttons to test if the functions work properly. By the way, before changing the battery, clean the dust off the key surface to prevent grease from getting inside. The battery typically lasts about two years, and I check it once a year to prevent failure. I also recommend buying high-quality batteries to extend usage time. The whole process can be done on a stable table and takes just five minutes—super convenient and cost-free.
