If You've Just Purchased Replacement Toyota Key ... Now What? How to Replace a Toyota Key Fob Battery

Stephenville drivers might need to replace their Toyota key fob batteries at some point. Thankfully, the service experts here at Shottenkirk Toyota are here to help!

Open the case with the hidden pry (newer models) or a thin object inside the notch. Once the case is opened then gently lift the circuit board to find the battery.

Keys lost or damaged

Whether it's a simple case of losing your car keys or something more serious such as the theft of a key fob or a remote being lost, losing a key or remote could be a huge hassle. This kind of issue does not have to be an expense if you are prepared.

Toyota's latest protection product, Key Replacement Protection helps ease the stress caused by keys that are damaged or lost. It covers up to $800 per occasion of the expenses that are associated with replacing your covered key, and/or keyfob. It's available in a package with the popular Tire & Wheel Protection or as a standalone product to be added to your loan at time of financing.

In most cases, those who lose their Toyota key fob will still be able to seek help. If you're able locate the fob somewhere in your office or home Our service experts will cut an additional key and program it for you. However, in more severe instances of loss or damage, a full replacement may be required.

If your key fob is unusable, you'll have to replace it. Reprogramming can be costly because codes must be strictly controlled to ensure the new key fob is only communicating with the car's system.

The best way to find out whether your key fob has been equipped with a transponder chip is by looking at it visually. Most modern models have a small dimple or dot on one of the sides. Some earlier model Toyotas however, did not have any transponder markings on their key fobs.


You should be able see the battery and the circuit board in green when you can squeeze an object that is thin into the slot where the fob will fit. If you take a picture of the battery that was used, it will be easier to locate the correct replacement in San Jose. A CR2032 battery should work with the majority of Fobs. It is available easily at local stores or online.

Broken Key Fobs

The last thing anyone would like to see when they're trying to start their car is the key fob that's damaged. Even the key fob has been damaged beyond repair, it is likely to be able to make it work again.

The first thing you need to do if you notice that your device is not responding to its buttons is to determine if the batteries have died. It's the most straightforward thing to fix and can be done at home. You'll need to take off the case of your key fob (you can find instructions on the internet) and take note of the type of battery it's using and the way it is placed in the case. Then, you can insert the correct type of battery and close the case. If you have a remote tester you can use, you may then test the key fob to check whether it's functioning.

It's also possible that the circuit board inside the device may have been damaged which causes it to stop working. This is a bit more difficult to identify and fix, but it could be a straightforward fix, such as putting water on it that caused it to stop working. The electrical signals are transmitted through this circuit board which then responds based on the type of button you press.

G28 Car Keys may also become dirty over time This is why it is important to clean it often. You can clean your key fob in a variety of ways, depending on the material it's constructed of. You can remove it and wash the circuit board in an acidic solution, or try alcohol to rub the contacts. Make sure you do this carefully and only in areas that are safe to do it.

In the end, it could be that you require a new fob. You can do this yourself, but you will need some tools. You'll need to be able to open the case, which may require some force, or the use of a screwdriver. Then, you'll need to purchase an alternative key fob case, and you can usually find a cheaper one on the internet.

Broken Key Fob Battery Case

It's not unusual for key fob batteries to cease working or even break. Fortunately replacing the battery on a Toyota key fob is easy and affordable. You can buy the replacement battery at your local hardware, home improvement or electronics retailer. The fob typically requires one coin-shaped battery, which resembles the appearance of a small flat button. It should be labeled with the size of the battery and have a plus and negative sign so that you can quickly determine the best way to insert it into the fob.

Open the fob by using your key (Newer Models), your fingers, or a thin but sturdy object in the notch or slot. Once the case has been opened, you can take off the circuit board and replace it. Be sure to recycle the old battery. Go through the owner's manual or look on YouTube for videos of others who have done this before to see how to do it right.

If your key fob is damaged beyond repair, you'll need to purchase a replacement from your local Hilton Head dealership. It is essential to bring your Toyota key, current registration, and insurance card when you visit a service tech since the dealer must have your VIN in order that they can make a new key using the appropriate program for your vehicle.

It's also worth looking into Toyota's Key Replacement Protection to see if it's an option for you. It's sold separately from your normal car warranty and covers the cost of replacing lost or stolen key fobs or remotes that cost up to $800 per instance. It's an excellent choice for those who are worried about losing their keys, or accidentally leaving them behind at a restaurant or other location.

Don Jacobs Toyota is happy to help you with an entirely new Toyota key or fob. Our team of experts is ready to assist you. Take a look at our new Toyota models!

Transponder Chip Issues

If you've experienced issues with your key fob it could be because the transponder chip inside has gone off. The chips communicate with your car when you insert the key into the ignition, providing an additional layer of security and stopping the theft of hot-wires by thieves. The car will not start if the signal is not received. If this is the situation, you'll need to either have your current key fob removed or visit your dealer to obtain an alternative.

The key fob's battery could be dead too. Key fobs are pretty robust, but their tiny lithium battery will degrade with time. It is easy to change the battery inside your Toyota Key Fob. The trick is to take off the metal key and use a screwdriver or coin to open the notch at the back of the encasing, and then pull upwards on the circuit board to get access to the battery.

Other than battery problems Transponder chips may fail due to a variety of reasons. Dropping the key fob onto a surface or submerging in water is among these causes. This could cause a shorting of the chip, rendering it unusable.

If you've lost your key fob or have it stolen, call a locksmith as soon as possible. This will not only ensure that you will be able to return your car however, it will make the task of a burglar more difficult by deactivating the engine immobilizer on the vehicle.

The best way to protect yourself from these circumstances is to purchase an insurance policy from the dealer, which will pay for the cost of replacing a lost or stolen key or remote. It is common to find this offer as a part of an overall package that includes Tire and Wheel Protection, or as a standalone option. This insurance will help you save money and stress in the long run. Speak to your Toyota dealer about the best cover options available.