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How to Repair Car Key Fobs Key fobs can be damaged even if we utilize them a lot. They are able to be destroyed in a variety of ways. Other issues could be more serious than an unresponsive battery. Fortunately, many of these can be fixed by making a quick DIY fix at home. Dead Battery A dead battery is probably the most common reason the car key fob stops functioning. Fob batteries are prone to draining quickly, particularly if they're exposed to extreme temperatures, humidity, or water. It's a good idea keep an extra fob battery in your wallet just in case. It is easy to tell that the battery in your car key fob is depleted because the light on the LED will cease to blink. The fob might also stop working from the same distance it used to. In this instance the key fob might require reprogramming or replaced altogether. It is easy to replace a car keyfob battery. First, determine what kind of battery is being used. The type of battery should be engraved on the back of the fob. Google can help in case you're unsure. Once you've found the type of battery you want to use, open the key fob at the junction. You will need to use an small screwdriver with a flat head or even your fingernail to break the two halves. Then, take out the old battery and insert a new one in its place. Insert the new battery so that the positive (+) face is facing the buttons on the fob. key lock repair near me might not be aware that the fob is dead until they try to lock or unlock their vehicle and the buttons don't respond. This can be fixed by reprogramming your fob. However it could be costly and time-consuming. Another option is to contact roadside assistance and see if they are able to jump your vehicle and get you back on the road. If you've tried all three of these methods but your car won't start then it's time for a professional. A trained technician can determine if the car's computer system needs to be reprogrammed or if the fob needs an upgrade in battery. They can also recommend an auto shop that will replace the key fob. In the end, though, sometimes a brand new fob is the best solution. Circuit Board Damage A key fob can take many physical abuses and is not impervious to destruction. The battery, the circuit board buttons, and other components all suffer their fair share of wear and tear over the course of time and it's crucial to be vigilant and take care of them in order to keep your car key fob functioning efficiently. Check that the battery is still working on your key fob. Replace the battery to see if it fixes the issue. If not, you might need to open the key fob and clean the contact surfaces. This can be tricky since some key fobs do not have easy-release mechanisms to unlock them, and you can easily harm your device if you try to pull it apart. You can buy a special tool to open your key fob, but you should always follow the instructions of the manufacturer to avoid damaging it. A damaged or defective key fob circuit board is a common problem. It can be caused by a number of things, such as moisture or dirt that gets into the battery compartment software, hardware issues, or even an accidental firmware update. If your key fob is not working, you may want to consider getting it changed. This can be done by a locksmith who specializes in this type of work. Radio interference is another possible cause. This could happen in the event that you have other wireless devices that transmit at the same frequency, such as radar detectors or home security systems. If this is the case, you should contact the other device manufacturer to make sure that your key fob will not be affected by their signals. You may also need to replace a switch or another electrical component of your key fob. You can find online guides that will show you how to fix this yourself. It's important to be careful when doing this, as the circuit boards that are inside your key fob are tiny and are susceptible to breaking if they are handled roughly. If you're doing this yourself, ensure you use an SMT switch of good quality and put the switch in place correctly. Buttons that are worn out Car key fobs are prone to a lot wear and tear. They are susceptible to being lost and spend a significant amount of time in your purse or pocket. Sometimes, this jostling can cause the buttons to become worn out or snagged. Simple adjustments can resolve the problem. The majority of modern key fobs have sensors on them that can detect if they've been pressed. They're designed to do this to decrease the chance of someone stealing your car. If the buttons on your key fob don't respond when you press them, they're damaged and should be replaced. Key fobs also contain an internal circuit board that transmits signals to the car. Those signals include unlock and lock commands, as well as commands to start your engine. If the circuit board inside is damaged, your key fob might not unlock or start your engine. Most of the time, this kind of damage is caused by water, force blunt or a scratch on the circuit board. You'll notice that the buttons on your key fob are deteriorating when you press the buttons more than normal to get them to work. Additionally, your fob may stop transmitting a signal to the car or have less range than it did prior to. 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 in your ignition is worn out. Fortunately, most key fobs for cars problems aren't complicated or serious. The best way to ensure you don't get caught off guard by an issue with your key fob is to have a spare in your possession at all times. This will ensure that you're not trapped in a place because of 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 A key fob's case provides more than just protection for the buttons and battery. The case also houses the circuitry that does all the electrical magic when you press the button on your key fob. This board receives the signal from your key fob and transmits it to your car. If the board is damaged or dead the key fob won't be able to function. A dead key fob may only need to be reprogrammed by your local auto locksmith, or dealership. Batteries could be the reason your key fob's battery not working. This is a quick solution that can be done at home by replacing the battery. The positive side is that you can find the replacement battery on the internet or at your local auto parts store, since these batteries are not exclusive to key fobs. There are several ways to open up a key fob and get inside it, depending on the type. A quick internet search should show you which type of key fob you have and the type of battery it uses. You can then purchase a new replacement and pop the old one out and then put the new one into. If you are repairing a damaged key fob, the primary concern is not to damage the circuit or buttons in any way. Trying to pry apart a key fob with a sharp edge, such as a screwdriver can damage the case or even crack the plastic. A replacement case isn't much and you can buy a complete fob assembly including the electronics on eBay or Amazon for under $40. So, if your key fob doesn't work Check to see if the batteries are dead or if the circuit board has become damaged. If this isn't the situation, you can get it repaired quickly and easily by a professional. If not, it may be time to replace the fob. Make sure to verify the warranty on any replacement or used fobs purchased online.