Introduction
As a Mazda 3 owner, there will come a time when you need to replace the battery in your smart key fob. This guide will walk you through the process step-by-step, ensuring you can do it quickly and easily.
- 2 pack of Energizer 2025 Batteries, 3V Lithium Coin Batteries
- Performs in extreme temperatures from -22 F to 140 F
- Long-lasting choice for calculators, scales and remote batteries
Understanding Your Mazda 3 Key Fob
The Mazda 3 key fob comes in two versions. One has four buttons, including a hatch open button, and the other has three buttons. Despite the differences, both versions use the same CR2025 coin battery.
Tools You Will Need
- Flat head screwdriver
- Replacement CR2025 battery
Step-by-Step Battery Replacement
Step 1: Remove the Valet Key
Turn the key fob over. Locate the small latch on the back. Push this latch down to remove the valet key.
Step 2: Open the Key Fob
Once the valet key is out, you’ll notice small indentations on either side of the key fob. These are your entry points.
Take your flat head screwdriver and gently insert it into one of the indentations. Twist the screwdriver gently to create an opening.
Repeat this process on the other side of the key fob to loosen it further.
Step 3: Separate the Key Fob Halves
With both sides loosened, insert the screwdriver into the opening you created. Twist and wiggle the screwdriver until the two halves of the key fob pop apart.
Step 4: Remove the Old Battery
Inside the key fob, you’ll see a plastic cover protecting the battery. Carefully remove this cover to expose the CR2025 battery.
Take out the old battery and set it aside for proper disposal.
Step 5: Insert the New Battery
Place the new CR2025 battery into the compartment, ensuring the positive side is facing up.
Secure the plastic cover back over the new battery.
Step 6: Reassemble the Key Fob
Align the two halves of the key fob and press them together until they click back into place.
Step 7: Reinsert the Valet Key
Slide the valet key back into its slot until it clicks securely.
- 2 pack of Energizer 2025 Batteries, 3V Lithium Coin Batteries
- Performs in extreme temperatures from -22 F to 140 F
- Long-lasting choice for calculators, scales and remote batteries
Conclusion
Replacing the battery in your Mazda 3 key fob is a simple task that can save you time and money. With this guide, you’ll be able to do it yourself with ease.
FAQs
What type of battery does the Mazda 3 key fob use?
The Mazda 3 key fob uses a CR2025 coin battery.
How often should I replace the key fob battery?
Typically, you should replace the key fob battery every 1-2 years, depending on usage.
Can I use a different type of battery?
It’s best to stick with the CR2025 battery as recommended by the manufacturer.
What if my key fob still doesn’t work after replacing the battery?
If your key fob doesn’t work after replacing the battery, you may need to reprogram it or check for other issues.
Can I replace the battery myself, or should I go to a dealership?
You can replace the battery yourself using this guide. It’s a straightforward process.
Where can I buy a CR2025 battery?
You can purchase a CR2025 battery online or at most retail stores that sell electronics.
- 2 pack of Energizer 2025 Batteries, 3V Lithium Coin Batteries
- Performs in extreme temperatures from -22 F to 140 F
- Long-lasting choice for calculators, scales and remote batteries
Is there a difference between the 3-button and 4-button key fobs?
The main difference is the number of buttons. Both types use the same CR2025 battery and have similar replacement procedures.
Will replacing the battery affect my key fob’s functionality?
Replacing the battery should not affect the functionality as long as the new battery is installed correctly.