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Key Fob Repair: Replacing the Battery The buttons on key fobs may get damaged and stop functioning properly after being tossed around in pockets and purses. Replacing the battery, which a majority of car fobs have in a snap-out bag, can fix this issue. If the contacts on the key fob are damaged, a new replacement may not be enough to bring it back to life. There's an easy fix that you can attempt at home: Replace the Battery It may be time to replace the battery in your key fob if it isn't working properly or takes longer to unlock or lock your car than normal. Fortunately, replacing the battery of your key fob is among the simplest tasks you can complete yourself. It's a simple fix that will save you money when you go to the dealership or locksmith. You can purchase the coin-style (CR2032) battery at any auto parts, home improvement, or general retailer. The key fobs have slots for these batteries and it is simple to replace the battery. Depending on the manufacturer, you may require a screwdriver or another tool to open the cover for the compartment for batteries. If your key fob has clips that keep the batteries in place, gently take them off them with your fingers or non-metallic tools. Install the new battery, taking care to place it in the correct way. Take note of the orientation when removing the old one. It is important to avoid touching the battery's flat surfaces, since finger marks can reduce their life. Close the case of the key fob and test the function by pressing the button. If it doesn't work you might need to open the fob again and check that the battery is properly installed. You may also find that a simple replacement of the battery isn't enough to resolve the issue. This could be caused by physical or electrical trauma. In this instance you'll have to bring your key fob to a dealership or auto service center to make repairs. Before you do that, there are four issues the replacement battery can't solve. It is essential to be aware of these issues so that you're capable of contacting a qualified technician if necessary. It is also important to learn how to repair a key fob's defective transmitter to understand the reasons it may not be functioning properly. Clean the Contacts It is essential to keep your keys clean to ensure their functionality and longevity. Over time, natural oils from your hands and pockets can build up on the key fob's buttons and crevices and even cause the keys to stop working completely. All you require is rubbing alcohol, an swab of cotton and alcohol rubbing. First, open the key fob by gently prying the battery out with either a screwdriver or coin. Make sure to note down the type of battery it is (negative and positive sides) so that you can insert it again correctly after you are finished. Then, wet a swab or small brush with isopropyl (rubbing) alcohol and begin taking off the dirt from all buttons on the fob and the surrounding areas. Pay particular attention to the battery's contacts and ensure that they are clean. Once you are done, be sure to let the fob as well as its components dry completely. If your device isn't working even after cleaning, you might want to reset the system. Consult your owner's manual for directions on how to do this and follow them. This could bring the key fob back to life if the problem was due to a dead battery. After the key fob has been cleaned and resynced, it is a great idea to maintain regular maintenance. You can ensure that your key fob is in good working order for a long time by wiping it clean using a damp towel and mild soap. Reset the system Although today's modern key fobs come with more features that are safer, more secure, and more convenient than ever, they can still encounter some problems. Most of the time, these problems aren't major or complicated and can be solved with simple methods, such as changing the battery. If the problem is serious or cannot be resolved by simple methods, an auto repair shop will replace and reset your key fob. Making your car lock or unlock with the key fob is the principal function of the device, but it can also be used to activate some features of your vehicle. The key fob can be used to lower or raise a sunroof. This feature can be very beneficial if you need to open the roof while stuck in traffic or your hands are full. The key fob can be used to call your car when it's parked in a tight spot. The key fob's internal circuitry and buttons may fail due to manufacturing defects or wear-and-tear. The signs are erratic behavior or the complete inability to lock or unlock the car. Moisture or other electromagnetic interference sources can sometimes interfere with the proper function of a keyfob. If your key fob has become dirty or wet, or is contaminated by dust, it will require cleaning prior to being used again. Replacing the battery of your key fob or cleaning the contacts could fix a malfunctioning device, however, if it continues to malfunction you might need to perform a factory reset. This can clear up system issues and restore operation of the device. If you are unsure of how to reset your device then consult the device's owner's guide or the manufacturer's site. Certain models require a specific tool to perform the reset, but you should be able find the instructions for the model you're using. Another option to resolve problems with your key fob is to call an Apache Junction mobile car locksmith. They can replace and program keyfobs for nearly all models of cars. www.g28carkeys.co.uk can also fix keys that have chips.