Your Toyota key fob is loaded with sophisticated technology that makes it work. This includes remote locking and smart keys, among other features. It's not surprising that it could malfunction.
Luckily that replacing the battery in your Toyota key fob is easy and inexpensive. Follow the steps below.
Battery
Toyota key fobs have small batteries that power their electronics, including the transponder chip that allows you to unlock your car. When you use your key fob, the battery will eventually wear out, and will need to be replaced. Replacing the battery on a Toyota key fob is straightforward and affordable, and will make your key fob functional.
You can open the case of your key fob by inserting a flat tool such as a screwdriver or coin into a notch in the case. The two parts of your key fob will be separated using this tool. On the side of the key fob half you'll find a circuit board and an battery. Gently lift the circuit board to reveal the battery, and then remove it from the case. Make a note (or snap a picture) of the kind of battery it is and how it is placed in the case, so you can find an alternative.
Replace the battery with a brand new CR 2032 3V battery and place it in the key fob with the negative side facing down. Reassemble the case and test the keyfob to make sure it functions. If it doesn't, repeat the process, double-checking that the connections are secure and in contact with the battery. If the key fob doesn't work, it may require a program from an authorized dealer.
Case
Sometimes, the case of your Toyota key fob will require replacement. The key fob may be damaged or the battery could be dead. The replacement of the Toyota key fob is simple. You can buy an additional case from your local hardware store or on the internet. The electronic components inside are more difficult to replace. Contact the Toyota dealership for assistance.
First, you must take the key out of its case. This is usually accomplished by pressing the button or sliding the latch. Once your key is removed you will find an opening or notch on the side of the case. Use a flat tool, like a screwdriver in this notch and open the case. Once the case is opened, carefully lift the circuit board in order to expose the battery. Note the type of battery and where it is in the case. You'll need to replace it.
You can purchase a brand new battery at most Lakeland stores. You can use the old battery, or a photo of it, to assist you on the purchase of a new. After receiving the battery replacement, carefully insert it into your keyfob. Then test it to ensure that it works.
Electronics
The electronic components on your key fob are what allow it to unlock your vehicle and start the motor. These components comprise a transmitter, receiver, and the physical key itself. All of these devices are powered by the key fob's battery. It will be impossible to access your vehicle if the battery fails. Thankfully, it is fairly easy for drivers to change the battery in their Toyota key fobs. This will restore the function of your key fobs, and also prevent theft.
If your key fob isn't functioning, it could be due to a faulty receiver module. Contrary to the transponder chip that is found that is found in a toyota Aygo replacement key, these modules are not as delicate and can be replaced at a lower cost. To ensure that the replacement process is completed properly, it is crucial to use a key repair shop with years of experience in this field.
To replace the battery on your Toyota key fob you will first need to open the case. Insert a flat tool, such as a screwdriver, a coin or a mini-screwdriver into the notch visible on the case. After you have inserted the tool, you need to gently pry the two halves apart. After the case has been separated from the circuit board and view the battery. Take a photograph of the battery to match it to a new battery in case you have to replace it.
After you have removed the old battery, put in the new CR2032 3V battery. Make sure the negative side is facing down. Make toyota replacement key that the new battery comes with the same type of cell that the old. Reassemble the case after installing the new battery and then test it. If your key fob won't function after reprogramming it the device, it may require replacement. It is recommended to bring your vehicle to an authorized Toyota dealer to have this done professionally.
Programming
If your key fob still doesn't work after replacing the battery it could be due to the circuit board. In this instance, it's best to purchase a brand new Toyota key fob. You can buy one online or from a locksmith at the dealership. If you're confident in making it your own try to change the key's programming by following these steps:
First, you must have an uncut Toyota transponder key. You can purchase it from a dealer, locksmith, or online. Install the new transponder in the ignition without turning it. Press and release both the gas and brake pedals at the same moment. This should take about 20 seconds or until the security light on the dashboard turns off. Then, you can replace the original key and check to see if it works.
Toyota key fobs use a complex system to communicate with automobiles. They are made to work only with the vehicle they are put into. This is why reprogramming them can be expensive and time-consuming since they must conform to legal standards.
You may need the circuit board of your Toyota replacement key fob to be reprogrammed by an auto dealer if it is not working. This isn't cheap however it will ensure that your key works properly and protects your car from theft. It could be more expensive to repair the key fob, if the issue isn't caused by a faulty battery.
You can replace the battery in the key fob of your Toyota if it has stopped working or failed to function. It's a straightforward process however, you'll need an instrument that is specifically designed to get to the inner workings on your toyota key fob. To open the case, you will need to remove the clip from the back of the key fob. Then gently pry the case off. Then, you should replace the old battery with a brand new CR2032 3V battery, and be sure that you place it in the correct position. After you have put the battery in the case, you must close the case and snap it shut.
