Mazda 3 2022 key fob battery

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How do you open a Mazda 3 key fob?

I’m trying to change the batteries on my Mazda 3 key fob, but I can’t figure out how to open it. How do you open a Mazda 3 key fob?

It’s always annoying to have to change the batteries on these, but luckily there’s an easy way to open your Mazda 3 key fob.

First, find the release button on the back to remove the key inside the fob. Press the button while pulling on the metal ring on top of the fob to pull out the key.

Removing the key will leave an opening on top of the fob with two grooves on the inside. Use a flathead screwdriver or credit card to pry apart the plastic grooves. Continue to pop the plastic casing around the fob, being careful not to break the plastic. It should come away in two parts.

Once you’ve popped the plastic casing in half, you should see a black circle of plastic covering the battery. This is to protect the battery from moisture or damage. Pop off the plastic covering and change the battery. Once you’re done, simply snap the plastic parts back together and voila, no more low battery notifications!

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Learn how to replace the Mazda key fob battery. Below you will find several videos that show how to replace the battery in several Mazda key fob batteries.

If your Mazda key fob battery is dead, you can still open the vehicle manually and start the vehicle.

What you will need

New Battery
- CR2032 3-Volt Lithium Coin Cell Battery, Most Common.
- CR2025 – Does not fit all in one Combo Key/Remote
Screwdriver

Procedure

Remove the metal key from the Mazda key fob.
You should see two slots where you will need to insert the flat screwdriver. Once you insert the screwdriver in this slot, twist it slightly, and the shell will open. Do the same for the other side.
Next, you will notice that only part of the shell is separated. Insert the screwdriver on the edge of the shell and twist it again. This should open the shell completely. Place the back Mazda key fob case aside.
Remove the key fob battery cover from your Mazda remote.
Pull out the dead key fob battery from the Mazda keyless remote.
Insert the new battery. Make sure the positive (+) symbol is facing you.
The positive is on top, while the negative side of the button cell battery faces the key fob.
Insert the O-ring in its channel if it came off during the earlier step when you removed the battery from the Mazda remote.
Press the battery cover in place
Press the two key fob cases together until you hear the shells click and lock in place.
Check the side of the key shell to make sure it is fully closed.
Press the metal (emergency key) into the Mazda key.
Test the key to ensure that the remote is working properly.

Procedure and instructions on how to replace the battery on Mazda flip key.

What you will need

SaleBestseller No. 1

CR1620 Battery

Procedure

Press the metal button to flip/open the metal key.
Use a small flathead screwdriver and insert it in the small opening, as shown in the video.
Your Mazda key fob shell will split in two.
Separate the Mazda key.
Use a small screwdriver to open the keyfob part with the lock/unlock buttons. The screwdriver is inserted at the edge where the two key halves join each other.
The key fob will open up, and you will see the old battery.
Pry the battery out using a small flathead screwdriver.
Install the new battery. The positive side of the battery (+) needs to face the back of the keyfob.

We hope you find the Replace Mazda Key Fob Battery guide helpful. Check these troubleshooting and repair guides for more help on your Mazda.

What battery do I need for a Mazda 3 key fob?

A replacement battery (CR2025 battery) Your Mazda key fob.

Can I use a CR2032 in my Mazda key fob?

MAZDA CX-3 Key Fob Battery Replacement – Supplies Needed Battery: You can use a CR2032 or equivalent battery for the 2021 Mazda CX-3 key fob.

How do you open a Mazda 2022 key?

Opening Your Mazda Key Fob Press the auxiliary key button on the back of the key fob in order to remove the metal auxiliary key. Once the metal key is removed, you'll notice a slot on either side of the key fob case. Use the tape-wrapped flathead screwdriver to gently pry open the case, one side at a time.