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Key Fob Repair: Replacing the Battery Getting jostled around in purses and pockets keys fobs can deteriorate and fail to register presses accurately. Replacing the battery, which most car fobs have in a snap-out bag, can sometimes fix this problem. However, a fresh replacement is not likely to restore your key fob if the switch's internal contacts are worn out. This is a simple fix you can do at home. Replace the battery It's possible to change the battery in your key fob if it isn't working or takes longer to unlock or lock your car than normal. Replacing a key fob's battery is among those easy tasks you can do yourself. It is also an inexpensive fix that could help you avoid a trip to an expert locksmith or dealer. You can purchase the coin-style (CR2032) battery at any auto parts or home improvement store, or general store. The key fobs come with an opening for these batteries and it is easy to replace the battery. Based on the brand you might need to use a screwdriver in order to open the compartment. Some key fobs come with clips which hold the battery in place; if so you can gently lift them up using your fingers or a non-metallic tool. Install the new battery, taking care to put it in the right place. Note its orientation when you remove the old one. Avoid touching the flat surfaces of batteries since this can reduce their life. After the new battery has been installed then close the key fob's case and test it by pressing the button to make sure it is working. If the key fob still isn't working, you might need to open it again and verify that the battery is inserted correctly. It is also possible that a simple battery replacement will not be enough to resolve the issue, for instance physical or electrical trauma. In this case you'll need to bring your key fob to a dealership or auto service center to make repairs. Before you do, there are four issues that a replacement battery cannot solve. You must be aware of these issues, so that you can seek help from a qualified technician when necessary. You can also find out how to fix the defective transmitter of a key fob to discover the reason it's not working. Clean the Contacts Maintaining your key fob's cleanliness is vital to its functionality and life. Over time, the natural oils on your fingers and pockets can accumulate in the key fob buttons and crevices. This can cause keys to stop working. All you need is rubbing alcohol, the cotton swab, and some alcohol rubbing. First, you need to open the key fob by removing the lid off with an instrument or coin and gently removing the battery. Be sure to note the type of battery it is (negative and positive sides) to ensure that you re-insert it correctly when you're done. Then, wet a cotton swab or small brush with isopropyl (rubbing) alcohol and start cleansing the dirt off all buttons on the fob and the surrounding areas. Pay particular attention to the battery's contacts, and that they are clean. Once you are done, make sure to let the fob and its components completely dry. If your fob doesn't work after cleaning it, it could be a good idea to reset the system. Consult your owner’s manual for instructions on how to reset the system. If the key fob was dead, this may be enough to bring it back to life. After the key fob has been cleaned and resynched, it is a great idea to maintain regular maintenance. By regularly wiping it clean with a damp cloth and gentle soap, you can ensure that your key fob will continue to perform well for the years to come. Reset the System Despite the fact that today's modern-day key fobs are more capable and secure than ever before, it's possible to run into certain issues. Most of the time, these problems aren't major or complicated and can be solved with simple procedures, such as changing the battery. If the issue is more serious or is not resolved with simple techniques, an auto repair shop will replace and reset your key fob. The device's primary function is to lock or unlock your car, but you can also make use of it to activate certain features of your vehicle. One example is the ability to lower or raise a sunroof with the key fob. This feature is beneficial if you need to open the roof while stuck in traffic or your hands are full. Similarly, emergency car key repair can be used to call your car when it's located in a tight spot. The internal circuitry of a key fob and buttons may fail due to manufacturing defects or wear and tear. The signs could include intermittent behavior or failure to lock or unlock the car. Sometimes moisture, as well as other electromagnetic interference sources could interfere with the operation of a key fob. If your key fob is dirty or has become wet, it must be cleaned before you can use it again. Replacing the battery of your key fob or cleaning the contacts can help fix a malfunctioning device but if it continues to malfunction you might need to perform a factory reset. This can fix system-related issues and improve device performance. If you're not sure the best way to perform a reset make sure you consult the owner's guide or the manufacturer's site. Certain devices require specialized tools to reset them, but you should find instructions for your specific model. Another option for resolving problems with your key fob is to contact an Apache Junction mobile car locksmith. They can replace and program keyfobs for almost all car models. They can also repair car keys with chips in them.