Introduction
If you own a Mazda CX-3 from the years 2016 to 2019, you might need to replace the battery in your smart key fob. This guide will walk you through the process. The battery you need is a CR2025 coin battery.
Replacing the battery is a simple task that doesn’t require any special skills or tools. Follow these steps, and you’ll have your key fob working again in no time.
- 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
Tools and Materials Needed
Before you begin, make sure you have the following items:
- CR2025 coin battery
- Flathead screwdriver
Step-by-Step Guide
Step 1: Remove the Valet Key
First, flip over your key fob. Locate the small lever on the back and push it down. This will allow you to remove the valet key.
Step 2: Open the Key Fob
With the valet key removed, you will see a small groove inside the fob. Use a flathead screwdriver and gently twist it in the groove to open the fob. Repeat this process on the other side.
Once both sides are open, gently twist the screwdriver to create an opening. The key fob will pop open, revealing the battery compartment.
Step 3: Remove the Old Battery
Inside the key fob, you’ll find a piece of plastic holding the battery in place. Carefully remove this plastic piece to access the CR2025 battery.
Take out the old battery and dispose of it properly.
Step 4: Insert the New Battery
Place the new CR2025 battery into the compartment. Make sure the rubber piece is securely in place on top of the battery.
Step 5: Reassemble the Key Fob
Place the back cover of the key fob back on and gently press it until it snaps into place.
Reinsert the valet key, and your key fob is now ready to use.
- 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
Alternative Method: Using Your Hands
If you don’t have a screwdriver handy, you can still open the key fob using just your hands.
Step 1: Create an Opening
Use your fingernail to create a small opening in the corner of the key fob. Repeat this process on the other side.
Step 2: Use the Valet Key
Once both sides are open, insert the valet key halfway into the opening. Twist the key gently to open the fob.
Step 3: Replace the Battery
Follow the same steps as before to remove the old battery and insert the new one.
Reassemble the key fob, and you’re good to go.
Common Issues and Troubleshooting
Key Fob Not Working
If your key fob still doesn’t work after replacing the battery, ensure the battery is properly seated and the rubber piece is in place.
Difficulty Opening the Key Fob
If you find it challenging to open the key fob, try using a different flathead screwdriver or applying slightly more pressure.
Maintenance Tips
Regular Battery Checks
Check the battery in your key fob every six months to ensure it’s functioning correctly.
Proper Storage
Store your key fob in a safe place to avoid accidental damage.
FAQ
What Type of Battery Does the Mazda CX-3 Key Fob Use?
The Mazda CX-3 key fob uses a CR2025 coin battery.
- 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
How Often Should I Replace the Key Fob Battery?
It’s recommended to replace the battery every 1-2 years, depending on usage.
Can I Use a Different Battery Type?
No, you should use a CR2025 battery to ensure proper functionality.
Do I Need Any Special Tools?
No, a flathead screwdriver or your hands will suffice.
What Should I Do If My Key Fob Still Doesn’t Work?
Double-check the battery placement and ensure the rubber piece is in place. If it still doesn’t work, consider consulting a professional.
Conclusion
Replacing the battery in your Mazda CX-3 key fob is a straightforward process. With just a few simple steps, you can ensure your key fob is always ready to go. Remember to check your battery regularly and follow the maintenance tips to keep your key fob in excellent condition.