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Key Fob Repair: Replacing the Battery Getting jostled around in purses and pockets, key fob buttons can deteriorate and fail to register presses reliably. This issue can be addressed by replacing the small battery that is usually located in the snap-out cases of the majority of car fobs. If the contacts in your key fob have worn, a new replacement may not be enough to make it work again. Fortunately, this is an easy fix that you can try at home: Replace the battery If your key fob is feeling sluggish or takes longer than normal to unlock or lock your car, it might be time to replace the battery. Luckily, replacing a key fob's battery is one of the easiest tasks you can tackle yourself. It is also an inexpensive fix that could save you a trip to an expert locksmith or a dealership. You can buy coins-style (CR2032) battery at any auto parts or home improvement general retailer. The key fobs usually come with a slot for the batteries, and opening the case to replace batteries is relatively simple. Depending on the manufacturer, you may need to use a screwdriver or other tool to remove the cover from the compartment for batteries. If your key fob is equipped with clips that keep the batteries in place, remove them with your fingers or other non-metallic tools. Remove the old battery and replace it with the new one, but be mindful of its orientation to ensure that you install it correctly. Avoid touching the flat surfaces of batteries as this could reduce their lifespan. Close the case of the fob's key and test the function by pressing the button. If the key fob does not work, you'll need to open it again and verify that the battery is inserted correctly. You may also find that replacing the battery is not enough to solve the issue. This could be due to physical or electrical trauma. In this situation, you'll need bring your key fob to a dealer or automotive service center to be repaired. Before you do this, there are four issues that a replacement battery cannot fix. You must be aware of these issues so that you can seek assistance from a certified technician when necessary. You can also learn how to fix the defective transmitter of a key fob in order to find out why it is not working. Clean the Contacts Keeping your key fob clean is crucial to its function and life. Over time, the natural oils of your fingers and pocket lint can build up on the buttons and crevices and even cause keys to stop working completely. It's simple enough to fix, though all you need is rubbing alcohol and a cotton swab. First, open up the key fob by taking the lid off using a screwdriver 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 small or swab with isopropyl (rubbing) alcohol and begin taking off the dirt from all buttons on the fob and the surrounding areas. Pay special attention to the battery's contacts, ensuring that they are free of any dirt or grease. When you are done your task, allow the fob and its components completely dry. If your fob doesn't work even after cleaning, you may want to reset the system. Consult your owner's manual for the instructions on how to do this and follow them. This could bring the key fob back to normal if the issue was due to the battery being dead. It is essential to keep the key fob in good condition after it is cleaned and resynchronized. By regularly wiping it down with a damp cloth and mild soap, you can ensure that your key fob will continue to work well for the years to come. Reset the System Despite the fact that today's high-tech key fobs are more efficient, secure, and convenient than ever, it is possible for them to run into certain problems. Most of the time these issues aren't too serious or difficult and can be fixed by simple procedures, such as changing the battery. If the issue is severe or is not resolved with simple methods such as auto repair shops, they will replace and reset your key fob. The primary purpose of the device is to lock or unlock your car, but you can also make use of it to enable certain features of your vehicle. One example is the ability to lower or raise a sunroof using the key fob. This feature can be very useful when you have to open the roof when stuck in traffic or when your hands are full. The key fob can also be useful in summoning your car when it's parked in a shady location. The key fob's internal circuitry and buttons could fail due to manufacturing defects or wear and tear. The signs could include erratic behavior or total failure to lock or unlock the car. Moisture or other electromagnetic interference sources can occasionally interfere with the function of a keyfob. If your key fob is damp or contaminated by dust, it's going to require cleaning prior to being used again. If the device continues to behave erratically after replacing the key fob or cleaning the contacts, you might need to perform a factory resetting. G28CarKeys can fix system-related issues and improve device performance. If you're unsure how to do a factory reset on your device, check the device manufacturer's website or your owner's manual. Some devices require a special tool to perform the reset, but you should be able to find the instructions for the specific model you have. Another option to resolve issues with your key fob is to call an Apache Junction mobile car locksmith. These professionals are able to replace and program key fobs for nearly all car models. They can also repair keys for cars that have chips inside them.