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Key Fob Repair: Replacing the Battery When they are tossed around in pockets and purses keys fobs can deteriorate and fail to register presses reliably. This problem can be fixed by replacing the small battery that is usually located in the snap-out case that comes with most car fobs. However, a fresh replacement could not be able to revive your key fob if the switch's internal contacts are worn out. It's a good thing that this is an easy fix that you can attempt at home: Replace the battery It may be time to replace the battery if your key fob isn't working or takes longer to unlock or lock your car than usual. Luckily, replacing the battery of your key fob is one of the easiest tasks that you can do yourself. It is also an inexpensive fix that could save you the hassle of an expert locksmith or a dealership. Most key fobs require batteries that look like coins (CR2032 or similar) which can be found at any general store, home improvement center, or auto parts stores. The key fobs have a slot for these batteries and it is simple to replace the battery. Based on the brand, you may have to use a screwdriver to open the compartment. Some key fobs have clips that hold the battery in place. If this is the case then gently lift them up using your fingers or a non-metallic device. Remove the old battery and install the new one, but be cautious to note the orientation to ensure that you put it in the correct place. It is important to avoid touching the battery's flat surfaces as finger marks can shorten their life. After the new battery has been installed, close the key fob's case and test it by pressing the button to make sure it works. If the key fob doesn't function, you may need to open it again and make sure the battery is inserted correctly. It is also possible that a simple replacement of the battery isn't enough to solve the issue, like physical or electrical injury. In that scenario, you'll have to bring your key fob into the dealership or service center to repair. But, before doing so, there are four common problems that a replacement battery won't solve. You must be aware of these issues, so that you can seek assistance from a certified technician if needed. It is also important to learn how to repair a defective key fob transmitter to find out more about why it may not be working correctly. Clean the Contacts Cleaning your key fob is vital to its functionality and lifespan. Over time the natural oils on your fingers and pockets can accumulate in the key fob buttons and crevices. This can lead to the keys not to work. All you need is rubbing alcohol, an swab of cotton and rubbing alcool. First, open the key fob by gently prying the battery out using a coin or screwdriver. Note the nature of the battery (negative and positive side) to ensure you install it correctly. Then repair broken car key can apply a cotton swab (or a small brush) to clean the buttons and the surrounding areas of the fob. Be sure to pay particular attention to the battery's contacts, and that they are clean. After you have finished cleaning the fob, let it and all its components completely dry. If your device isn't working even after cleaning, you might be required to reset your system. Consult your owner’s manual for instructions on how to reset the system. If the key fob is dead, this may be enough to bring it back to life. After the key fob's been cleaned and resynced, it is a great idea to keep up with regular maintenance. By regularly wiping it down with a damp cloth and gentle soap, you can make sure that your key fob will function well for many long time to come. Reset the system Even though today's high tech key fobs come with more features that are safer and more convenient than ever but they are still susceptible to some issues. Most of the time, these problems aren't major or complicated and can be resolved with simple solutions, like changing the battery. If the problem is more severe or if the issue cannot be resolved with simple methods, a professional auto repair shop can replace and reprogram the key fob. The primary purpose of the device is to lock or unlock your car, however you can also use it to activate certain features of your vehicle. The key fob can be used to lift or lower a sunroof. This feature is very useful when you're stuck in traffic and require to open your roof. Similarly, the key fob can be used to call your car when it is stuck in a parking spot. The internal circuitry of the key fob may fail due to defects in manufacturing or wear and tear. The signs could include erratic behavior or total failure to lock or unlock the car. Sometimes moisture, or other electromagnetic interference sources could interfere with the operation of a key fob. If your key fob is dirty or wet, or is contaminated by dust, it will need to be cleaned before being used again. Replacing the battery on the key fob or cleaning the contacts might solve a malfunctioning device, but if it continues to malfunction it may be necessary to do a factory reset. This will fix system issues and restore device performance. If you're unsure how to perform the factory reset on your device, consult the website of the manufacturer of your device or the owner's manual. Certain devices require special tools to reset them, but you should find instructions specific to your model. Another option for resolving problems with your key fob is to call an Apache Junction mobile car locksmith. These professionals are able to replace and program key fobs for almost all car models. In addition, they can also repair car keys that have chips inside the keys.