How to Replace the Mazda Key Battery?
2 Answers
Mazda key battery replacement method is as follows: 1. Turn the car remote key to the back. 2. Use a flat-head screwdriver to insert it between the key ring and the key side, move the screwdriver along the gap to both sides to gradually widen the gap, and then open the back cover. 3. Remove the old battery and replace it with a new one, paying attention to distinguish the positive and negative poles and not to install the battery backward. 4. Reinstall the back cover. Replacement precautions are as follows: 1. Purchase the original battery for the car key to ensure the voltage and model are the same. 2. Take measures to prevent small parts from falling and getting damaged before prying open the key. 3. After reassembling the electronic key, ensure the buckle is restored to its original position and the mechanical key is locked in place.
I've replaced the batteries in several Mazda keys myself and find it quite simple and cost-effective. Most Mazda keys use CR2025 batteries. First, insert a thin tool like a coin or small screwdriver into the side gap of the key and gently pry open the casing, being careful not to use too much force to avoid damaging the plastic parts. Once opened, locate the small round battery, remove the old one while noting the positive and negative orientation, install the new battery, snap the cover back on, and test the button response. This saves hundreds of dollars compared to going to a dealership. Typically, the battery lasts about two years. If you notice the key unlocking slower than usual, replace it in advance and keep a spare battery in the car for emergencies. Remember, gentle prying is key to avoid damaging the circuit board with tools.
