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How to Repair Key Fob Issues Key fobs, despite their longevity, can wear out or stop working. This can occur for many reasons. The most frequent cause is the battery is dead. Luckily, changing the battery is an easy fix. Other problems could be more complex. Signal interference is one possible cause. It can be caused by the buttons. Battery Your key fob is a tiny and fragile piece plastic, so it is not difficult to have things go wrong. Fortunately, the majority of key fob issues aren't difficult or complex and can be fixed with a little knowledge and the right tools. In some cases the simple replacement of a battery may be the answer. car key remote repair need to do is check your key fob for indications of damage. The exterior of your key fob should be free of dent marks, scratches and other marks that could suggest that the battery is low or the device does not function correctly. After you've checked the outside, you'll need to use a flat head screwdriver to open the key fob's shell and look at the battery and circuit board. Most key fobs are powered by a 3V button cell battery, which is readily accessible at stores such as Walmart. If you're not sure what kind of battery your key fob uses look up the owner's manual or a local auto Locksmith for assistance. If your fob doesn't work after you've replaced the batteries, it could be because of interference. This can happen when other devices or car security systems interfere with radio signals transmitted between your key fob, and your vehicle. If this is the case, your dealer might be able manually reprogram your key fob. Another common problem with key fobs is worn out contacts within the device that connect to your vehicle's system. If the contacts get damaged or worn, your key fob will not be able to send or receive signals. This can be a tough fix, but it's also possible to try using metallic tape and a hole punch to make repairs for a short time. You can also find replacement key fob buttons and housings cheaply online, if you search by year, make and model of your car. The most important thing is to stay clear of tampering with your fob or changing the battery too often by yourself Always seek professional help if you can. This will ensure that you don't cause any additional damage to your fob and will keep it in good condition for a long time to come. Buttons Key fobs are useful additions to modern vehicles, but they can also cause problems. A few simple troubleshooting techniques and a few maintenance tips can ensure that they always function as you want them to. One of the most frequent reasons why a car key fob doesn't work is a dead battery. The typical battery for a key fob lasts three to four years, so if you start noticing that it takes multiple clicks to unlock your car or that it's less flexible as it used to be it's time to replace the battery. The replacement of the battery in a key fob is a relatively easy task that a majority of people can handle themselves. You can open the case of most key fobs by pressing an indentation that is small using a flathead screwdriver, or coin. This will allow you to remove the battery and replace it. Most key fobs are powered by a lithium-ion button cell, which is easily available at most places that sell batteries, such as supermarkets, home improvement stores, and pharmacies. A key fob that isn't working could be due to the buttons aren't functioning properly. Certain key fobs come with a lock button that locks the vehicle doors and others allow you to unlock all the doors with a single press and close the trunk/open the trunk using a second press. If you press the lock or unlock button on your key fob, but it doesn't work is there an issue with the wiring, the switch, or the antenna, and you'll need to consult the owner's manual for further instructions. The key fob might not be receiving or transmitting the correct signals to your car. This could occur when the key fob is damaged, or when it's exposed to electromagnetic interference, which could be from your pocket or other electronic devices, or even from your car's security system itself. You can unlock your car using an additional key fob that is of the same year and model as yours (although it's unlikely to start the vehicle). You could also try a signal strength checker to determine if there's an area where the signal is weak or intermittent. Circuit Board If you've got a key fob that has stopped working, the first thing you need to do is determine whether or not the battery is dead. Changing the battery can be easy enough however, if it doesn't solve the issue it is possible that you require the fob to be reprogrammed. This procedure can be more involved and is different for every vehicle, which is why it is recommended that you take your fob to a professional to have this done. It is possible to replace the buttons on your key fob. These buttons can wear out over time from repeated use. If you notice you need to be closer than normal to unlock your car, the fob needs to be replaced. If the fob is equipped with an actual key, then you can also try using that to unlock your car. Next, a key fob might be faulty because of water damage or an electric shock. These can cause the circuit board inside the key fob to stop functioning. Always examine the warranty provided by the manufacturer if your key fob has suffered any type of damage. You can also try resetting the key fob. You can find instructions to do this in your owner's manual. You can also search on the internet for specific instructions for the model and make of your. It's a simple process, but it is essential to follow the correct steps to avoid damaging the device. Genesky claims that he is forced to turn away many customers who own Audis because they require specialized equipment to programme their fobs. He says that this isn't uncommon for European cars, as they often have digital encryption, which can only be programmed by a dealership. A functional key fob is vital to being able to move around in modern society. A car key fob can fail or stop working at any moment it can make your life miserable. By following these suggestions you can fix the key fob and spare yourself the hassle of having to buy another one. Case Study Key fobs are a wonderful convenience for car owners. However, they could have problems that need to be fixed. Some of these problems can be resolved by replacing the battery. Others might require more work. Fortunately, there are some ways to prevent major fob problems from arising in the beginning. This includes cleaning the fob regularly and using only the correct type of batteries and keeping the fob away from magnets and other electromagnetic fields. A dead battery is among the most common reasons for a key fob to cease working. Removing the battery is a relatively easy process that can be done at home. You can pry the battery from many key fobs using an screwdriver. Use the exact type of battery suggested in the owner's guide. Using the wrong type of battery could damage the electronic components inside of the fob, causing it to cease functioning. Signal interference is a common problem that can cause the key fob to cease working. It can happen when other electronic devices or security systems interfere with the signals that are transmitted between your key fob and your vehicle's control unit. Try unlocking your vehicle with an extra fob. The case of a key fob could be damaged, which can cause it to stop working properly. Fortunately, this is another issue that can be repaired by a professional locksmith. They can repair the outer casing and make sure that the internal components are in good working order. This is cheaper than buying an entirely new fob. It will also save you a lot of time and stress. It is important to consider the pros and cons before deciding whether or not you want to replace your key fob. A repair can be an inexpensive and quick fix while replacing will typically require specialized programming specific to your vehicle.