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How to Repair Key Fob Issues Key fobs, despite their strength they may wear out or stop working. This can happen for a variety of reasons. The most common reason is a dead battery. It is good to know that replacing the battery is a simple solution. Other issues could be more complex. One possible cause is interference with signals. It could also be a problem with the buttons. Battery It's easy for things to break on your key fob, since it's a tiny and fragile piece. Most issues with key fobs are not complicated or serious and can be resolved with the right tools and a small amount of knowledge. In some instances the solution could be as simple as changing a battery. The first thing you have to do is look over the key fob for signs of damage. The exterior of your key fob should be free of scratches, dent marks and other marks which could indicate that the battery is low or the device is not functioning properly. After you've checked the exterior, you'll want to use a flat-head screwdriver to break open the key fob's shell and examine the battery and circuit board. The 3V button-cell battery is typically used in key fobs and can be purchased at stores such as Walmart. If you're not sure what kind of battery your key fob takes you can consult the owner's manual, or a local auto Locksmith for help. If your key fob does not work after you've replaced the batteries it could be because of interference. This could happen when other devices or security systems interfere with radio signals transmitted between your key fob and your vehicle. The dealer in your car may be able to manually reprogram your key fob in the event that this is the situation. A worn-out or damaged contact within the device is a common issue with key fobs. If the contacts get damaged or worn, your key fob won't be able to send or receive signals. This can be a tough repair, but it's possible to use metallic tape and an hole punch to create an interim repair. If you search the internet by the year and make, as well as model there are a variety of affordable key fob housings that can be replaced and buttons. It is important to avoid tampering with your fob or modifying the battery too much by yourself and always seek help from a professional if you can. This will help you avoid damaging your key fob and will keep it in good order for many years. Buttons Key fobs can be useful additions to modern vehicles, but they may also be a source of trouble. Some simple troubleshooting tips and maintenance techniques will ensure that your key fobs perform as you would expect. One of the main reasons that a car key fob doesn't work is a dead battery. A typical key fob can last between three and four years. If you notice that it takes more than one click to unlock your car, or that the car isn't as responsive as before it might be time to replace the batteries. The majority of people can replace the battery on a key fob for themselves. The majority of key fobs have an indentation of a small size which you can press with a coin or flathead screwdriver to unlock the case, allowing you to remove the battery and then insert an alternative one. The majority of key fobs utilize a lithium-ion button cell battery that can be found at pharmacies, supermarkets and home improvement stores, as well as almost any other store that sells batteries. Another possible reason a key fob may be inoperable is because the buttons aren't working correctly. Some key fobs come with the lock button that locks the doors of the vehicle. Others have a unlock button that allows you to unlock the doors and open or close the trunk with the second press. If pressing the lock or unlock buttons on your key fob does nothing, it could indicate an issue with the wiring, switch, or antenna. Check the manual for your vehicle for more details. The most common issue with a key fob is that it's not transmitting the right signals to the vehicle. This could happen if the key fob has been damaged or has been subjected to electromagnetic interference. This could result from devices in your pockets, other electronic devices, or even your vehicle's security system. If you have an extra key fob with the same year and make as yours, you could sometimes use it to unlock your car (although it won't usually start the engine). You could also try using an instrument to check the strength of your signal to determine if you've got an area in which the signal strength is weak or intermittent. Circuit Board If your key fob isn't working, you should first make sure that the battery is dead. If changing the battery doesn't solve your problem then you might have to reprogram the fob. This procedure can be more complex and differs for each vehicle, so it is recommended that you take your fob to a professional to have this completed. It is possible to replace the buttons on your key fob. These buttons can become worn over time due to repeated use. If you notice that you have to be closer to the car than normal for it to unlock, it is a sure sign that your key fob might need to be replaced. If the fob has an actual key inside the fob, then you could try using that to unlock your car. The next step is that a key fob may be defective due to damage to the water or an electrical shock. The circuit board of the key fob could be damaged or malfunction due to these problems. It is important to examine the warranty provided by the manufacturer if your key fob has sustained any kind of damage. You can also try resetting the key fob. You can find the instructions for this in your owner's manual. You can also search the internet for specific instructions to your model and. It is a simple procedure, but it's important to follow the right steps to avoid causing damage to your device. Genesky says that he has to turn away many customers who own Audis because they require special equipment to program their fobs. He says this is not common for European vehicles, which often include digital encryption, and can only be programmed by a dealer. In today's society, a key fob that works is essential to move around. A car key fob may break or cease to function at any moment, which can cause a lot of trouble. By following these suggestions you can fix your key fob, and spare yourself the hassle of having to buy an entirely new one. Case Key fobs are a great convenience for car owners. However, they can have issues that must be addressed. Certain issues might be able to be fixed by simply replacing the battery, however others might require more work to resolve. Fortunately, there are things that can be done to help prevent key fob problems from arising in the beginning. These include keeping the fob clean and using the right kind of battery and keeping the fob away from magnetic fields and other electromagnetic fields. One of the most frequent issues that cause the key fob to stop functioning is a dead battery. Replacing the battery is an simple procedure that can be accomplished at home. You can pry the battery from many key fobs using an screwdriver. Use the exact battery type recommended in your owner's guide. A battery that is not of the correct type could cause the electronics to corrode and stop functioning properly. 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 signals that are being transmitted between your key fob and the vehicle's control unit. Test repair car keys by unlocking your vehicle with an extra fob. The case of a key fob may also be damaged, causing it to stop functioning properly. A professional locksmith can usually solve this issue. They can fix the outer case and make sure that all of the internal components are in good order. This can be much cheaper than buying a new fob and can save you lots of time and stress. It is crucial to consider the pros and cons before deciding whether or not you want to replace your key fob. A quick and inexpensive repair is possible, however replacements usually require specialized programming specifically for your vehicle.