How to Replace the Key Battery for Mazda 3 Axela?
2 Answers
121141 The tutorial for replacing the key battery is as follows: 1. Before removing the mechanical key, gently press the switch on the back of the key. 2. Pry open the key, using a small screwdriver for assistance if needed. 3. Use a small flat-head screwdriver to remove the old battery. 4. Insert the new battery, ensuring the "+" terminal is facing upwards. 5. Reassemble the key cover and mechanical key. 6. Test the key functions such as the lock button to ensure they work properly. Points to note during the battery replacement process: 1. Improper battery replacement may damage the car key. 2. Using unsuitable or non-compliant batteries may damage the car key. 3. If you encounter any issues during the replacement process that cannot be resolved, it is recommended to contact a 4S store for assistance.
Last time my key fob stopped working, I found out the battery was dead. Replacing it yourself is quite simple. Just prepare a CR2032 coin cell battery, which can be bought for a few dollars at a hardware store or online. The key fob usually has a small groove or gap—use a flathead screwdriver or a stiff card to gently pry open the casing, being careful not to apply too much force to avoid scratches. Once opened, you'll see the old battery; remove it with tweezers or your fingernail. Make sure the new battery is inserted with the positive side facing up, matching the orientation of the old one. Finally, snap the casing back together and test the remote locking function to see if it's restored. The whole process takes just a few minutes, and the tools are common household items. After testing, if it still doesn't work, it might be a signal issue or internal key fob malfunction. It's recommended to check the battery regularly to avoid sudden failures—battery life is typically around two years. For daily storage, avoid placing the key fob in high-temperature or humid environments to extend its lifespan.
