How to Replace the Battery in a 2011 Mazda 3 Key Fob
If your auto key fob is no longer unlock doors properly, the battery probably must to be replaced. In this post, we explained how to open your keyless entry remote and change your Mazda key battery step by step.
What is the battery keyless entry remote use
Before beginning open key fob make sure that you have all recommended tools and materials: 1xCR2025 battery and flat head screwdriver.- flat head screwdriver
- 1xCR2025 battery
Simple steps to change the battery in your 3's key fob
Inside of your key fob installed small coin battery. Move the key out of the way if it is in the key fob.
Accurately try to open your keyless entry remote with hands or flat head screwdriver. Change 1xCR2025 battery with flat head screwdriver.
Get new battery and install it in keyless entry fob's body. Battery must be placed with the same polarity as was an old. Your remote key fob will not work if you mistakenly put battery wrong way.
When the new battery installed, verify keyless entry remote by pressing buttons. If all functions works, assemble your fob’s case in reverse order.
At this point squeeze fob’s back cover together. Line your body pieces together and assemble it in place by hands from top to bottom. If your key shell tightly closed, we done. If not, repeat the last step.
How to replace the battery video instruction
Replace Mazda Remote Battery
Still not working? Buy new one