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Key Fob Repair Service – 5 Common Reasons Your Key Fob Won't Work The loss of your key fob down is a frustrating situation. Fortunately, most fob issues aren't too serious or complex and can be fixed at home or with an auto locksmith near you. The first step is to examine the fob for physical damage and an unresponsive battery. You can then reset the fob according to the instructions contained in your owner's manual. Dead Key Fob Battery A key fob lets you to unlock and start your vehicle without having to mess around with your physical keys. Some models even unlock doors, hatchbacks and trunks with the push of one button. A lost key fob isn't as difficult to fix as it might seem. Most car owners know that they can go to a dealership or repair shop for help but did you know that you could also attempt to fix your own key fob at home? The first thing you'll need is a fresh, new CR2032 battery. You can purchase them in a multipack from most hardware stores. Then, use an flathead screwdriver or watch to pry open the fob case. There's typically an opening or notch to start after you've made the first gap, you can use your tool as you would peel an apple or an orange to open the case more. Be gentle in order not to harm the fob or its circuit board. Once you've got your case open, put the battery you just purchased under the tabs highlighted by yellow arrows in this image. Make sure it's over the two tabs pointed to by the green arrows. Close your key fob after you have installed the new battery, and then test it. If it's still not working, it might be the right time to contact an expert for more thorough troubleshooting. In key repairs of a battery in a keyfob may result in a non-functional device. In this situation there's probably a problem with the vehicle or the fob. It's a good idea to keep a spare key fob on the shelf so that you are prepared when the original battery fails or a different issue occurs. You may also ask an expert to provide other key fob repair procedures. They can check for damages to buttons and contacts, as well as other parts, as well as do reprogramming and synchronization if your vehicle is having a difficult communicating with your key fob. Damaged Key Fob Battery Most key fobs use a small battery to power their internal components, which include buttons that trigger the antenna and chip to release the radio frequency. The battery also powers the plastic casings to protect these components. If the battery dies and your key fob stops working, it will not work. Fortunately, the solution is easy and cheap: just replace it. In their owner's manual the majority of manufacturers offer instructions on how to replace the key fob's battery. It may be a bit difficult, but it is not hard to do and you'll likely save money by doing it yourself instead of bringing the fob into the auto shop or dealership. If your key fob is not working after replacing the battery, you may be experiencing another problem. Examine the key fob for indications of physical damage, like cracks or dents. You can also open the case to inspect the circuit board for signs of corrosion or other issues. If you are confident doing this, you can use a cotton swab coated with rubbing alcohol to clean the contact points on the key fob's circuit board. This will eliminate the corrosion, but not damage to the fob. Key fobs also need to be programmed to connect to the vehicle's receiver. This is to ensure that only those with keys for the same vehicle can unlock the car, and to stop other key fobs from trying to gain access to vehicles they are not intended for. If you've recently had your key fob repaired or replaced or if it hasn't been used for a long time the receiver and transmitter could have been disconnected. A good method to test this is by using a spare key fob that you have. This will let you know whether the issue is related to the key fob or the electrical system in your vehicle. A mechanic at your vehicle will be able to connect any wires that are disconnected and help you solve the issue. You could also try connecting the key fob with another receiver and try to determine if this solves the problem. If you are unable connect your key fob to an alternative receiver in your vehicle, you might have to take it to a car dealership or auto repair shop to get more specific repairs. Damaged Key Fob Transmitter When your car key fob fails to function, it can be a major inconvenience. The majority of car key fobs can be easily repaired by following a few simple steps. Examine the fob to determine whether it's got any physical damage and make sure that it's not dead. A new battery may be all that's needed but if it's not enough to fix the problem, there could be a larger issue with the fob transmitter. Car key fobs are made up of a lot of moving parts, so it's not unreasonable for them to undergo wear and tear over time. A damaged transmitter for your key fob could stop your vehicle from starting or opening the doors. A damaged transmitter may also affect radio signals that are sent from your key fob to the receiver inside the car. Bring your key fob to a professional for repair and inspection when you suspect that the transmitter is damaged. Batteries are often the cause of a key fob not working. Key fob batteries usually last between three and five years, so it's a good idea to purchase fresh ones on a regular basis. Replacing the battery of a key fob is a fairly simple procedure that anyone can complete at home. All you require is a flat head screwdriver to pry off the case and then you can replace the old battery with a brand new one. Most key fobs are powered by 3V button cells that are sold at most auto parts shops. A malfunctioning receiver could be the reason behind your key fob not responding. This can be a very frustrating issue that usually happens when you're driving. If your key fob isn't appearing to be receiving a signal, try placing it in the driver's side of the door lock. A damaged receiver could cause your key fob to act in a strange manner, for example, turning off or locking the vehicle whenever you press one of its buttons. Try using an alternative keyfob to see if the vehicle will respond. Contact your dealer if do not have a spare keyfob. If your current key fob is still in warranty, a few dealerships selling new cars may be able to provide a replacement at no cost. Key fob receiver damaged Key fobs can be prone to several issues. They are useful tools that let us lock and unlock our cars. If your remote key fob in your car isn't working properly it's likely that you need to contact a locksmith or an auto dealer. Fortunately, many common issues with keys are easily fixed without needing to shell out for a costly replacement. Here are five of the most commonly-cited reasons your key fob may not be functioning: Key Fob Needs Re-Programming Over time, the key fob receiver and transmitter can get out of sync with each and the other. To fix this issue, you'll have to reconnect the key fob and its receiver by following the instructions for reprogramming your car. These instructions are found in your owner's manual or you can consult your dealer in your area to assist you. If reprogramming the keyfob does not resolve the issue, there may be a problem or an interference with your receiver or keyfob. Luckily, this issue is simple to repair by opening your key fob to take a closer look at the interior. Find evidence of damage, like cracks on the board, tiny electronic components that aren't connected to the board or bent or damaged battery contacts. Repairing the key fob if you spot any of the above. Whether you need to replace or repair your key fob, the best solution will depend on the source of the issue and the amount you value convenience and the cost. If your key fob is damaged or dropped, it might be more cost-effective to replace it professionally. In any case, make sure to take good care of your key fob to ensure it will continue to give you years of trouble-free operation. By cleaning it regularly and avoiding exposing it to extreme temperatures or electromagnetic fields you can ensure that 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 working as intended.