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How to Fix a Skoda Superb Key Fob Not Working A faulty key fob is an inconvenience, especially as it can prevent you from getting into your vehicle or even starting the car. The good news is that most key fob issues can be solved by a bit of troubleshooting and some common sense. Replace the battery first. This is the most frequently encountered problem and can be solved within a matter of minutes. Dead Coin Battery If your key fob won't work the first thing you need to look at is the battery. If the battery is dead, it's easy to fix – just remove it and replace it with a fresh one. The key fob will then begin working normally. This is particularly important as the batteries in the key fob don't last very long and you'll likely have to replace them regularly, depending on how often you use the key fob. If the new battery fails to solve the issue, there could be a problem with the key fob that requires professional help. The most frequent issues that key fobs face are signals interfering or damaged buttons, worn buttons or receiver module issues and the battery is dead at 12 volts. It is beneficial to have a working spare key fob so you can rule out other possible causes. The battery of 12 volts in the key fob is crucial for powering the on-board electronics, including the central locking and remote keyless systems. If the battery is bad or has run out of charge, all of the electronic components on board will cease to function and the remote keyless system will not work. To test the battery, take off the negative cable, and then the positive cable for a few moments. This will remove the remaining electrical energy from the circuit and reset it. The remote keyless system will now work again. If you have an additional key fob, you should consider reprogramming the original one to see if it solves the issue. The process for reprogramming the key fob is easy and involves turning on the ignition and leaving it in by pressing the unlock button five times with a 1 second interval between each press, and waiting 6 seconds after the horn sounds to activate the coding process. Worn Buttons It is inevitable that your key fob will fail at some point, no matter how well you handle it. Fortunately, most key fob problems are not severe and can be repaired by replacing the battery. In certain situations, it may be necessary to replace the entire fob. However, prior to doing this, you must make sure that the replacement battery has the same size and voltage as the original battery. You can always use an extra key fob to determine if the issue is with the car or the fob. If it does not work, then the issue is with the car and you'll be required to take it to a dealer. The buttons on your key fob have many wear and tear, and are more likely to break or pressurized over time. In the process, they can be erratic and stop functioning properly. This is especially true if the key fob was dropped or left in the rain. If this is the case, pressing the buttons gently will help to restore their function. You can also take the battery off and clean it with electronic cleaner or isopropyl. Also, make sure that the retaining clips made of metal are tight and clean. This will ensure that the clips are in good alignment. Another possible issue is interference with signals. This can be caused either by radio transmitters or objects in the vicinity or even the weather. The key fob will only work if close to your car. This can be fixed by removing the source. Water Damage Whether you have taken your key fob for a swim or bathed it in soapy water, if the electronic components inside were damaged by moisture it could stop your key from working properly. It could stop working completely or it may only function when you are near the vehicle. The first thing you need to do is replace the battery. This is a cheap and simple fix that is done with the use of a flathead screwdriver or thumb screwdriver. The battery in your key fob is responsible for transmitting signals to the receiver module, therefore it's vital that it's in good health. A battery that is not working will stop the key fob from functioning properly. If you have an extra key fob, use it to determine whether the issue is related to the receiver module in your car or if it's simply an old battery that needs replacing. This will allow you to determine if the skoda key fob is at fault or if there's a different issue that needs professional attention. If you've tried the battery trick but you are still unable to get your skoda key fob to function, it could be because of a signal interference problem. This is a common issue that is caused by a number of things, such as other electronic devices that operate on the same frequency. Interference can be caused by bad weather, or other objects that interfere with radio waves. This kind of issue is difficult to identify in certain situations because it is not always obvious. If you notice that your key fob is only working when it's close to the vehicle, that's a good indication of a signal interference issue. replacement skoda key fob that the receiver module is not working properly in the event that your key fob doesn't work. This is the chip that communicates with the other modules of your car in order to lock and unlock doors. If the chip has developed a fault, it will probably need to be replaced. Signal interference could be the reason. If your key fob is located too close to other transmitters, the signals could be in conflict and cause it to stop functioning. This can include things like nearby towers and radio masts as well as TV and mobile phone antennas and even household appliances. If you suspect that this is the problem, try moving your keyfob away from any source and see if it starts working again. Also, make sure that the key fob's steel retaining clips are tight and not loose or damaged. They keep the battery in place and complete the circuit. If they're not tight or damaged the battery won't receive power and the remote won't function. You should also replace the battery with one of the same size and voltage to avoid damaging the key fob. Another reason that your key fob's not working is that the key fob has been exposed to water or salt. If your keyfob is submerged, you need to take it off to clean the chip using isopropyl or electronic cleaner. It's also important to ensure the chip is dry before reinstalling it in the key fob. It's a hassle when the key fob you've purchased stops working. However, you can still drive your vehicle. In fact, it's a good idea carry a spare key fob in your car just in case. Signal Interference Signal interference from other sources could cause your key fob to malfunction. It's not always caused by the battery. It could be due to radio transmissions from other cars nearby, wireless devices or even key fobs. You can make use of an OBDII scanner to see what's going on and what you can do to repair it. It can be a huge problem if your car's key fob doesn't work. Fortunately, the majority of problems are relatively simple to diagnose and repair. In some instances the replacement of a keyfob might be needed. The coin battery is the most commonly cited cause of the key fob not functioning. While it is possible for the battery to be recharged, it's generally more cost-effective to replace it. It is also crucial to ensure that the new battery is a suitable fit. It is crucial to purchase the button cell battery with the same size and voltage of your original battery. If you choose the wrong size battery, it may harm the inside of the key fob. Other reasons why your key fob might not function could be due to water damage, worn buttons or a weak connection. If your key fob is having issues it's an ideal idea to test using a spare fob first to determine if it is working. If it does, the issue could be attributed to the keyfob, not your car. If it doesn't, it could indicate a more serious problem.