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remote car key repairs – 5 Common Reasons Your Key Fob Won't Work It can be a stressful experience when your key fob malfunctions. Most fob issues can be resolved at home by an auto locksmith or are not urgent. The first step is to examine the key fob to see whether it has physical damage or a dead battery. Then, try to reset the fob using instructions in the owner's manual. Dead Key Fob Battery With a key fob you can open and start your vehicle without fumbling around with your keys. Many models unlock doors trunks, and hatchbacks by pressing a button. A dead key fob is not as difficult to fix as it may appear. Many car owners know that they can visit a dealer or repair shop for assistance but did you know that you could also attempt to fix your own key fob at home? First, you'll require a brand new CR2032. You can purchase them in a multipack from most hardware stores. Use a flathead screwdriver or a watch to pry the case open. After you've widened the first gap and you're ready to employ your pry tool to open the case. You should be gentle in order not to damage the fob or its circuit board. Insert the new battery under the tabs marked with yellow arrows on this photo. Be sure to insert the battery past the two smaller tabs indicated by the green Arrows. Close your key fob after you have installed the new battery, and then test it. If it doesn't work, it might be the time to speak with a professional for more in-depth troubleshooting. In rare instances replacing a battery on a keyfob may result in a non-functional device. If this happens, it's a sign that something is wrong with your fob or the vehicle itself. Keep a spare keyfob in your car so that you're prepared in case the battery dies, or if another problem arises. You can also ask an expert to provide other key fob repair services. They can inspect for damaged buttons, contacts, and other parts. They can also carry out the reprogramming process or synchronization when your vehicle is experiencing trouble communicating with your key fob. Key Fob Battery Damage Most key fobs rely on small batteries to power their internal components, which include buttons that trigger the antenna and chip to release radio frequencies. The battery also powers the plastic casing that protects these parts. Your key fob will not function if the battery dead. Fortunately, the solution is simple and affordable simply replacing it. There are many manufacturers that have instructions in their owner's manual on how to replace the battery on the key fob. It's not difficult, and you can save money by doing it yourself instead of taking the fob to a dealer or auto shop. If your key fob not working after replacing the battery, you may have another issue. Inspect the key fob for indications of physical damage, such as cracks or scratches. You can also open the case to inspect the circuit board for signs of corrosion or other issues. If you're comfortable, you can use a cotton ball dipped into rubbing alcohol to clean contact points on the circuit board of the key fob. This will eliminate the corrosion without damaging the fob. The key fobs also need to be programmed to connect to the vehicle receiver. This is done so that only those with the keys to the same car can unlock the vehicle, and to prevent key fobs that are not meant for that vehicle from opening it. If you have recently had your keyfob repaired or replaced or it's been unoccupied for a long time the transmitter and receiver may have become disconnected. An effective method to test this is using an extra key fob you have. This will tell you whether the issue is related to the key fob or the electrical system in your vehicle. A mechanic can help you fix the problem by reconnecting any wires that have been disconnected. You can also try connecting the key fob with another receiver and see if this fixes the problem. If you're unable to connect your key fob to another receiver in your vehicle, you might need to take it to a car dealership or auto repair shop to get more specific repairs. Damaged Key Fob Transmitter It can be a big hassle when your car's key fob doesn't work. Fortunately, most car key fobs can be repaired by following a few simple steps. Check the fob to see if it has any physical damage and ensure that it is not just dead. A new battery could be all that's needed but if it's not enough to solve the issue, it could be a larger issue with the fob's transmitter. It's not surprising that key fobs for cars wear out over time. They're made of a variety of moving parts. A damaged transmitter on your fob can hinder your vehicle from starting or from unlocking the doors. Additionally a damaged transmitter may affect the radio signals that are sent between your key fob's receiver and your key fob inside the vehicle. Bring your key fob to a technician for repair and inspection when you believe that the transmitter is damaged. Batteries are usually the reason of a key fob that isn't working. Key fob batteries last between 3 and five years. It is best to replace them regularly. The replacement of a key fob's battery is a relatively simple process that most people can do at home. You'll need a flat-head screwdriver in order to pry the case open, and after that you'll be able to replace the old battery. Most key fobs are powered by 3V button cell batteries that are available at most auto parts stores. A damaged receiver may be the reason for your key fob not responding. This can be a very frustrating issue, as it usually occurs while you are driving. If your key fob doesn't appear to be receiving a signal, try placing it inside the driver's door lock. A damaged receiver may also cause your keyfob to act in a strange manner. For instance it might lock or turn off the vehicle when you press one of its buttons. If you have an extra key fob, test it to see if it can respond to the vehicle's commands. Call your dealer if you do not have a spare keyfob. In certain cases, a new-car dealership may be able to offer an alternative for free if the current fob is in warranty. Key fob receiver damaged Key fobs may have a number of problems. They are useful tools that allow us to lock and unlock our vehicles. If your remote key fob for your car isn't functioning properly, you may need to call a locksmith or an auto dealer. Most common problems with key fobs can be easily fixed without the need to purchase an expensive replacement. Here are five of the most frequent reasons why your key fob might not be working: Key Fob Needs Re-Programming Over time, the key fob receiver and transmitter can become out of sync with each and the other. To fix this issue, you'll need to re-sync the key fob with its receiver following the instructions for reprogramming your vehicle. These instructions are found in the owner's manual or you can consult your local dealer to help you. If the re-programming of your key fob fails to fix the issue, it may be other issues or interference to the key fob or its receiver. It's generally easy to repair if you open your key fob and take a close look inside. Find signs of damage, like cracks in the board tiny electronic components that aren’t connected to the board or damaged or bent battery contacts. If you spot any of these, you can repair your key fob by replacing damaged parts. The best solution for you is based on your budget and the convenience. However, if your key fob was damaged by a fall or other forms of physical damage, it may be easier and less expensive to have it replaced by an expert. In any event, take good care of your key fob to ensure it continues to work smoothly for many years. By cleaning it regularly and avoiding exposure to extreme temperatures or electromagnetic fields you can ensure it will last the longest time possible. By selecting a professional with experience with the model and make of your vehicle you can be certain that your key fob is always functioning as it should be.