How to Replace the Battery in a Hyundai Car Key?
3 Answers
Steps to replace the battery in a Hyundai car key: 1. Before replacing the battery, pull out the key; 2. Use the front end of the key to press into the groove, then twist to open the key casing; 3. Place the prepared battery into the remote, ensuring correct polarity, then close the cover. The Hyundai ix35 has body dimensions of 4500mm in length, 1850mm in width, and 1715mm in height, with a wheelbase of 2640mm. The Hyundai ix35 features front-wheel drive, a front suspension type of MacPherson independent suspension, a rear suspension type of multi-link independent suspension, and a unibody structure.
Last time I replaced the battery in my Santa Fe's key fob and found it super easy. First press the small button on the side of the key to pop out the mechanical key. Then use a fingernail or thin tool to gently pry along the seam of the casing to separate the top and bottom shells. Note there's a clip in the battery compartment - use a toothpick or similar small tool to release it, don't force it. The old battery is a CR2032 - remember its orientation when removing. New batteries cost just a few bucks at supermarkets. When inserting the new battery, you'll hear a 'click' indicating it's properly seated. Finally when closing the casing, make sure to press the rubber gasket firmly to prevent water ingress during rain. The whole process takes less than 5 minutes - much easier than driving to the dealership.
Having run an auto repair shop for over a decade, I've handled no less than a thousand Hyundai keys. The folding keys generally use CR2032 batteries, but prying open the casing requires skill. I've seen too many people break the clips by forcing them open with screwdrivers—actually, sliding an old bank card along the key seam and twisting it around is the safest method. Extra caution is needed with smart keys: that small silver button on the back is the emergency start induction zone—keep your hands off it during battery replacement to avoid triggering the car alarm. After replacement, test all button functions—holding the lock button for three seconds can even close the windows. Street vendors charge 50 yuan for this service, but DIY replacement costs just 5 yuan.
