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Key Fob Repair Service Key fobs take a beating. Buttons can become stuck or break depending on how they are stored and how often they are jostled. Fortunately, the majority of issues with key fobs are simple to fix. Certain key fob issues are more severe and require assistance from a professional. This is where a locksmith can come in handy. Dead Fob Battery The car key fobs are pretty smart, but that does not mean they do not sometimes get stuck in the “not responding zone”. If this happens, it's time to replace the battery. However, this doesn't always fix the issue, since you could also have a bad connection on one of the battery connector's terminals. The car manufacturers are aware of this potential issue, so they often include a spare key mechanical inside the fob for just such an emergency. To access this, you can find the small release button or latch behind the fob (check the user manual for specifics). By pressing this button, you'll be able to open the fob and reveal a physical key that you can use to open the car. Another indication that your fob's batteries are dying is that you have to be much closer to the car to open and lock it than before. The transmitter of the fob loses energy when its battery is depleted. This limits its range. Replacing the battery is easy and relatively inexpensive. You'll need the button-cell battery (which looks like a small silver coin) and then follow the steps in the user guide to remove the old battery. Replace the battery in the exact direction as the old one (the positive side facing upwards towards the buttons). After reassembling the fob, test its lock/unlock and start functions to ensure that the new battery was installed correctly. Certain key fobs may be difficult to open however, you should be able to do it by locating the latch, switch or screw on the back of the fob and then prying it open. Be careful not to break the fob because you'll need it to work with your vehicle! You can also take the fob to an expert in case you're not comfortable making the change yourself. Since it's a routine service the majority of auto shops will replace the battery in fobs for a minimal cost. Some dealers may even offer it for free dependent on the model and make of your vehicle. Fob not working Replace the batteries if your key fob does not work. This is the most efficient solution and is the most likely way to fix the problem. If your device still does not work after changing the battery, it could be caused by damage. Your car key fob can be damaged due to various reasons, including physical trauma or exposure to water or a corroded board. These issues can stop your key from sending a signal to the receiver in your vehicle, which could stop your car's ignition or doors from locking. You may have to get a professional replacement for your fob if it is damaged. The buttons on your keychain may have worn away with repeated use. The rubber can wear away and make the buttons less springy or 'clicky' and may start to fail to register your presses reliably. You could try wiping the buttons down and adjusting them, however, it is recommended to have the fob professionally examined to make more extensive repairs. It is also important to confirm that the battery you're using is a exact match for the fob you're using. You can find a list on the internet or in most hardware stores. Consult your owner's guide or the engraving on your fob for further details. A battery that isn't the perfect match may have problems transmitting strong signals or providing adequate power to the fob's internal components. In rare instances, it could be that the issue isn't with your key fob but rather the vehicle's receiver or electronic components. If you have an inductive backup system and you want to test it, you can do so by opening the door with a physical key and then beginning the car using the inductive backup (if it is available). If your key isn't working to open or start your vehicle check with a mechanic the electronic components and receiver of your car to see if they are functioning correctly. Fobs that are damaged A key fob is made up of many parts that function together, and one failure can cause others to fail. If a keyfob doesn't work, it's important that you look for obvious causes such as a cracked casing or a damaged component. It's also important to check other areas of the vehicle, such as the lights and horn to determine whether those are working normally. If the fob for your key is damaged, it's best to find a replacement at your dealership or an auto locksmith rather than trying to repair it. It might be necessary to reprogram the fob to the car. This isn't something you can do at home, and requires special equipment. The buttons on a key fob utilize contacts to send signals to the circuit board of the key fob however, these contacts will wear down over time. This is more likely when you drop the device or leave it in a hot climate. In time the internal wiring of the key fob could wear down. It could result in the button not working when pressed, or can be used when pressed extremely strongly. This could also lead to the car not being able to start or unlock when the fob is used. Most fobs come with an outer cover made of plastic that can be opened and cleaned using water and soap. This can often restore a key fob to functioning properly and it's a great idea to do this often to prevent dirt from harming the insides. A bad battery is the most common reason that the key fob won't turn on or work. Most car dealers and mechanics are able to replace the batteries in a short time but if you're at ease doing it yourself, you can purchase a battery from a hardware store or big-box retailer, and follow the instructions in your owner's manual or on YouTube to install it. The most likely scenario is that your key fob has internal damage, like cracks small electronic components that aren't fully connected to the circuit boards or corroded and bent contact points for batteries. If you find any of these issues, you should consult an auto locksmith or a dealer to obtain a replacement key fob and help in programming it to your vehicle. Fob is not programming The car key fob is a convenient way to start your engine and unlock the doors of your vehicle. When they stop working or fail to function, they can be a hassle. In some cases the problem can be solved by replacing the battery. In other cases, it might require a more intricate repair. The first step is to identify why the fob doesn't work properly. One of the most frequent causes of a malfunctioning fob is that it is no longer able to recognize your vehicle. This can happen when the connection between your remote and the car is broken. This connection can be reset without the need for expensive key fob repair . Other problems can arise when the key fob isn't able to sends an energizing signal. This could be the result of a key is damaged or the battery is not functioning properly. In any case, try to reconnect the key with your vehicle. You can do this by following the instructions included with the key fob. It's also recommended to carry an extra key, so that you can make use of it in the event that the primary key isn't working. It's possible that the fob doesn't receive an adequate signal from the car. This could be caused by weak car batteries or interference from wireless devices or an antenna issue. With a remote tester, you can test the fob and determine if it's the problem. If the tester doesn't blink when you press one of the buttons, it could be a sign that the battery needs to be replaced or the fob is been damaged. Another possible reason for a fob not sending an adequate signal is that the immobilizer system in your car is blocking it from sending a strong signal. This can happen if your fob isn't properly programmed to your vehicle or it's a software problem. If you are unable to fix the fob or it's not worth the trouble to try to fix it, you need to purchase a new one. There are low-cost alternatives from a variety of online retailers, and some of these are even delivered to your door.