How To Change Battery In Toyota Key Fob? (All Types)

The smart Toyota keys are operated by a battery. Thus, if you know how to change the battery in the Toyota key fob, you can do it by yourself.

Depending on the model of the key fob, the procedure of opening the keys case will differ. But once you do it, take out the battery from the circuit.

Then buy a replacement battery of a similar configuration and change it. Close the key fob with delicacy but properly.

Changing the battery in the Toyota key fob only takes a few minutes. If the key doesn’t work correctly even after changing the battery, there is a circuit problem. That means you need to change the key fob.

 Cost To Change Battery in Toyota Key Fob

The cost of changing the Toyota key fob battery is relatively low. A packet of the battery will cost you less than $5. 

In each package, you will find around 5 to 6 batteries. That means the cost of each battery will be less than $1.

The batteries can be found in any hardware store or online shop. You can change the battery yourself, and there is no service cost. 

But if you replace the whole key fob, it will cost you between $200 and $300.

How To Change Battery in Toyota Key Fob?

Depending on the model of your Toyota, the model of the key fob varies. Thus, the battery changing technique will also differ.

Replacing Battery of Toyota Key Fob 2018 – 2022

In the newer model of Toyota key fob, you need to open just one key case. Here is the procedure for battery replacement.

Step 1: Open the Key Case

To change the battery, first, you will need to open the key fob. For this, locate the push button on the side of the key fob. Push the button slightly, and the key inside will come out.

You will notice that the key is not attached to anything. The key case is designed to adjust the position by a push and pull method.

When you take out the key, you will see a small gap in the key slot. Put a thin metal or a screwdriver inside the space and pop open the case.

Step 2: Find the Battery

Once the case is opened, it is time to locate the battery. You will notice a circuit. It is connected to the back case of the key with the magnet.

Slightly pull the circuit, and it will get detached from the back case. There you will find the battery attached to the circuit.

Step 3: Recognize the Battery

After locating the battery in the key fob, you will have to recognize which battery has been used in default.

If possible, replace it with the same battery or at least note the voltage and other specifications. Replacing it with another voltage will cause it to malfunction.

Step 4: Battery Replacement

The new battery of the Toyota key fob is available in the online marketplaces. It is also available in the nearest Hardware Store or Toyota service center.

To replace the old battery, you will need to take out the battery from the circuit board carefully. It is not set with screws but rather a case lock system.

Gently pop out the old battery using a knife head or a thin screwdriver. It would be best if you were very careful and delicate with this. Otherwise, the four locks holding the battery might break.

Now just push the new battery into the place, and it will be locked down. Ensure the lower side is negative and the visible side is positive.

Step 5: Reattaching the Key Fob

Put the circuit into the back case with a light push for retouching the case. Now take both the front and back cases and put them together.

When you hear a click sound, the case has been put together.

Step 6: Testing

After completing the replacement check the key. If it is not working correctly, you will need to replace it with a new one again. Otherwise, it is good to go.

Replacing Battery of Toyota Key Fob 2012 – 2017

The battery replacement of the Toyota key for 2010-2017 is not that difficult. With the following steps, you can easily replace the battery.

Step 1: Open the Key Case

In this model of Toyota, the key is not located inside a case. Therefore, there is a small gap given so that you can snap open the key fob.

Find the small given gap in the slot for a key chain. Put the head of a screwdriver inside that given gap and push it. It would be best if you were gentle here so that you do not break the case.

Before opening the case, it is advised to flip over the fob. Otherwise, the button keys on the keyboard will fall out.

Step 2: Find the Battery

Inside the key fob, you will find a small box-like case holding the battery. In the small case, you will find small cutouts.

Put the head of a screwdriver into those cutouts and snap open the battery case. Once you open the case, you will find the battery attached with a circuit inside it.

Step 3: Recognize the Battery

You will have to find which type of battery is used here and need to buy the same one or at least a one with the same voltage and other configuration.

You can buy the replacement battery on eBay, Amazon, or other online markets. You will also find it in your nearest hardware shop.

Step 4: Battery Replacement

To replace the battery, again, with the help of a screwdriver, take out the battery to replace the battery. Be careful and gentle so that you do not break the locks holding the battery.

Put the new battery in place and push a little harder. The new battery will be installed. Ensure the upper side is positive and the lower side is negative.

Step 5: Reattaching the Key Fob

Once the battery is replaced, first reattach the battery case and then put the key fob together. For your key to work correctly, the cases must be closed.

Step 6: Testing

After the replacement is done, test if the key is working or not. If the key is not working correctly, you will need to replace the battery again.

Conclusion

Depending on the model of your Toyota key fob, the answer to “How to change the battery in the Toyota key fob?” might differ slightly. 

The older models will only take one or two more steps to replace the battery. But the manufacturers have made it even more manageable in the newer models.

Whenever your key fob malfunctions, it is better to look into the battery condition before buying a new key. 

In maximum cases, it is the battery that is dead. Buying a new battery and replacing the old one will be more pocket-friendly than taking the key fob to a repair shop.

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