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How to Repair Car Key Fobs Key fobs can be damaged even if we use them often. They can be destroyed in various ways. Other issues can be more important than the battery being dead. The majority of problems can be fixed with a simple fix at home. Dead Battery A dead battery is probably the most common reason a car key fob stops functioning. Fob batteries are known to drain quickly, particularly if they are exposed or cold temperatures, humidity or even water. It is a good idea to keep an extra battery in your wallet in case. The LED light will usually stop glowing when the battery in the car key fob is low. It's also possible that the fob won't function from the same distance as it used to. In this instance the key fob could need to be programmed again or replaced entirely. Fortunately, replacing the car key fob battery is a simple task. First, determine what type of battery is used. The type should be engraved on the back of the fob. If you are not sure it is, an easy Google search will help. Once you've identified the kind of battery you want, open the key fob at the junction. Use a flathead screwdriver, or even your fingernail, to separate the two halves. Then, you can remove the old battery and insert the new one in its place. Make sure you insert the new battery with the positive (+) side facing up toward the buttons on the fob. Some drivers don't realize that their fob is dead until they lock or unlock their car and the buttons no longer work. In some instances this issue can be resolved by reprogramming your fob, however, this can be expensive and time-consuming. You can also call roadside assistance to find out whether they can jumpstart your vehicle and get it back on the road. If you have tried all of these options but your car won't start, then it's time for a professional. A trained technician will be able to determine if your car's computer system needs reprogramming or if the fob needs a replacement battery. They can also recommend an auto repair shop that can replace your key fob. In the end, though it is not always the case that a new fob is the best solution. Circuit Board Damage The key fob isn't indestructible, but it can be able to withstand a variety of physical damage. The battery, the circuit board and buttons will all experience their fair amount of wear and tear over the course of time It is therefore essential to be aware and take care of them to keep your car key fob operating efficiently. Verify that the battery still working in your key fob. If it is, replace the battery and check if it fixes your issue. If this does not work, you may have to open the fob and clean its contact surfaces. It can be difficult to open certain key fobs due to the fact that they don't have an easy-release mechanism. You may damage your fob by trying take it apart. You can purchase a specific tool for opening your key fob. However, you should follow the directions of the manufacturer to avoid damaging it. Another common problem is a damaged or corrupted circuit board on the key fob. This can be caused by numerous factors, such as dirt or moisture getting into the battery compartment. Software issues or an accidental firmware update can also cause this. If your key fob is not functioning, you might be interested in getting it changed. This can be accomplished by a locksmith that specializes in this work. car keys repair is also a possibility. This could happen if there are other wireless devices that transmit on the same frequency as your key fob, like radar detectors or home security systems. If this is the case, you should consult with other device manufacturers to ensure that your key fob isn't affected by their signals. There may be a need to replace a switch or an electrical component of your key fob. You can find online guides that guide you through the process of fixing this yourself. You should be careful to be careful, however, since the circuit board in your key fob is very small and could easily break if handled roughly. If you're doing this yourself, make sure to make use of an SMT switch that is of high-quality and solder the switch in place in a proper manner. In a state of wear Out Buttons Car key fobs are prone to quite a bit of wear and wear and tear. They're susceptible to being dropped, and they often spend a lot of time moving around in your purse or pocket. Sometimes, this jostling can cause the buttons to become worn out or snagged. When this happens it's possible that a simple adjustment will be all it takes to restore the button's functionality. Modern key fobs are equipped with sensors that are able to detect when they have been hit. This is due to the fact that they decrease the chance of someone else stealing your vehicle. If the buttons on your key fob don't respond when pushed this is a sign that they're worn out and require to be replaced. The circuit board inside the key fob transmits signals to your car. These signals include commands to unlock and lock your car, as well commands to start your engine. If the circuit board inside your vehicle is damaged then your key fob might not be able to unlock your vehicle or start the engine. This kind of damage is typically caused by blunt force or water. You'll be able to tell that the buttons on your key fob are wearing down if you find yourself pressing the buttons more than normal to get them to work. In addition the fob might cease transmitting signals to the car, or have a lower range than it did before. If you're not able to unlock your key fob, unlock or start your car, it's important to contact a locksmith in your area immediately. They can tell if the key fob is damaged or the cylinder of your ignition is worn out. Luckily, most car key fob issues aren't too serious or complex. Keep an extra key fob in your vehicle always in case you end up being shocked by a malfunctioning one. This will ensure that you're never left stranded somewhere due to the loss or malfunction of your key. If you lose your spare key a professional locksmith can rekey it to work with your vehicle's engine. They can also fix any internal damage to the key fob. Broken Case The case for your key fob does more than just protect the battery and buttons. It also houses the circuit board responsible for doing all of the electrical magic when you hit the button on your key fob. The circuit board relays the signal from your key fob to your car. If this board is damaged or dead your key fob will not be able to function. A dead key fob might require reprogramming by your local auto locksmith, or dealer. Another reason why your key fob may not be working is that the batteries are not working. This is a quick fix that can be accomplished at home by replacing the battery. You can get the replacement battery from the local auto parts store or on the internet. These batteries aren't only for key fobs. There are several ways to open up a key fob and get inside it, based on the type. A quick search on the internet will show you which type of key fob yours is and what kind of battery it requires. You can then purchase a new replacement and pop the old one out, and put the new one into. The main concern when you repair the broken car key fob is that you don't want to harm the circuit board or buttons any further. When you try to break the fob using a sharp edge, such as a screwdriver could damage the case or even scratch the plastic. Fortunately, a replacement for the case is inexpensive and you can buy an entire fob with the electronic components from eBay or Amazon for less than $40. If your key fob does not function, make sure you have damaged the circuit board or the batteries. If this isn't the situation, you can get it repaired quickly and easily by an expert. If not, it could be the time to purchase an upgrade. Make sure you check for a warranty on any replacement or used fobs you purchase online.