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How to Repair remote key repairs though we put them through numerous times, key fobs are not impervious to destruction. They are able to break down in different ways. While the most common problem is an unresponsive battery however, other issues could be more serious. Luckily, most of these issues can be solved with a quick DIY fix at home. Dead Battery A dead battery is the main reason for the key fob not functioning. Fob batteries can be drained quickly, especially when they're exposed to extreme temperatures, humidity or water. Keep an extra battery in your wallet in case you require it. You can usually tell the moment your car key fob's battery is depleted by the fact that the LED light will cease to blink. It's also possible that the fob will no longer work from the same distance it used to. In this case it could be necessary to re-program the key fob or replace it completely. It is easy to replace the car keyfob battery. First, you need to determine the kind of battery is being used. The type should be embossed on the side of the fob. If you're not sure it is, doing a quick Google search will help. The key fob can be opened across the seam after you've identified the type of battery. Use a flathead screwdriver, or your fingernail to break the two halves. Remove the old battery, and replace it with a new one. Place the new battery in such a way that the positive (+) face is facing the buttons on the fob. Some drivers don't realize that their fob has died until they lock or unlock their car and the buttons stop working. This can be fixed by reprogramming the fob. However it can be time-consuming and expensive. You can also contact roadside assistance to see whether they can start your car and get it back on the road. If you've tried both solutions but your vehicle doesn't start, it's the right time to contact an expert. A certified technician will be able to determine if your vehicle's computer system requires reprogramming or if the fob needs a replacement battery. They can also recommend a reputable auto shop to replace your fob's keys. Sometimes, however, a new fob might be the best option. Damaged Circuit Board A key fob is able to withstand a lot of physical abuse and is not indestructible. The battery, the circuit board, and buttons all get their fair amount of wear and tear over the course of time, so it's important to be aware and take care of them to keep your car key fob working well. Verify that the battery still working on your key fob. Replace the battery to determine if it resolves the issue. If this doesn't work, you may need to open the fob and clean the contact surfaces. This can be tricky since some key fobs do not have easy-release mechanisms to open them, and you can easily end up damaging your key fob if attempt to break it. You can purchase a specific tool to open your key fob, but you must always adhere to the manufacturer's guidelines to avoid damaging it. A damaged or defective key fob circuit board is another frequent issue. It can be caused by many things, including moisture or dirt getting into the battery compartment. Software issues or even an unintentional firmware update may also cause this. If your key fob has stopped functioning completely, you should think about having it reprogrammed by a locksmith that specializes in this type of work. Radio interference is also a possibility. This could happen if you have other wireless devices around that transmit at the same frequency, like radar detectors or home security systems. If this is the case, consult with other manufacturers of your device to make sure that your key fob's signal isn't affected by their signals. It's also possible that your key fob may have an issue with the switch or another electrical component that must be replaced. This is a more difficult fix however, you can find guides online that explain how to fix it yourself. It is important to be cautious when doing this, though it is important to be careful, since the circuit boards inside your key fob are tiny and easily break in the event of rough handling. If you're doing this yourself, ensure you use an SMT switch of good quality and put the switch in the correct position. In a state of wear Out Buttons Car key fobs are prone to lots of wear and wear and tear. They are more prone to being lost and spend a significant amount of time being jostled in your pocket or purse. Sometimes, broken car key repair can cause the buttons to become worn out or stuck. When this happens an easy adjustment could be all it takes to make it work again. Modern key fobs come with sensors that detect when they've been press. They're designed to do this because they can help decrease the chance of theft by someone else of your vehicle. If the buttons on your key fob aren't responding when you press them it's a sign that they're worn-out and need to be replaced. Key fobs also contain a circuit board inside them which transmits signals to your car. Those signals include commands to unlock and lock and commands to start your engine. If the circuit board inside is damaged, then your key fob will not allow you to unlock or start your engine. Typically, this type of damage is caused by water, force blunt or something that scratches the circuit board. You'll be able to tell that the buttons on your key fob are wearing down when you press them harder 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. Contact a locksmith immediately in the event that you are unable to use your key fob to access your vehicle. They can determine if your key fob is damaged or if your ignition cylinder is worn out. Luckily, most key fob issues in cars aren't serious or complicated. The best way to avoid getting caught off guard by a malfunctioning key fob is to have an extra in your pocket at all times. 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'll also be able fix any internal damage that may have been caused to your key fob. Broken Case A key fob's case is more than just a place to store the buttons and battery. The case also houses the circuitry that does all the electrical magic whenever you press the key fob button. This board transmits the signal from your key fob to your car. If the board is damaged or dead your key fob will not be able to function. A dead key fob may require reprogramming by your local auto locksmith or dealer. Batteries could be the cause the key fob's not working. car key repair cost can be replaced at home. You can find the replacement battery from your local auto parts shop or on the internet. These batteries are not only intended for key fobs. There are several ways to open a key fob to get inside it, depending on the kind. A quick search online should reveal what kind of key fob you have and the type of battery it uses. You can then buy a new one, take the old one out, and then put the new one in. The biggest concern when repairing an old car key fob is that you don't want to harm the circuit board or buttons further. If you attempt to pry apart the key fob using an instrument like a screwdriver or any other sharp edge, it could crack the plastic or damage the case. Luckily, a replacement case is inexpensive and you can buy an entire fob with the electronics on eBay or Amazon for less than $40. If your key fob won't work, you should check if you've damaged the circuit board or the batteries. If that's not the situation, a professional could fix it quickly and inexpensively. Otherwise, it might be time to consider an upgrade. Make sure you check for a warranty on any replacement or used fobs that you purchase on the internet.