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How to Replace a Dead Coin Battery in Your Jaguar XF The Jaguar Smart Key system allows you to lock your Jaguar quickly and easily. It also has security features, such as the ability “double lock” a vehicle to prevent thieves from breaking windows to gain access. There are a variety of reasons for why your Jaguar XF key fob might not work. It could be due to a dead or defective coin battery, signal interference and a malfunctioning electronic chip. Dead coin battery Modern electronic keys offer greater convenience and security than traditional manual keys. They can lock and unlock your vehicle, switch on the lights and start the engine. They also come with features that make driving easier. However, they will lose their charge in time. If your Jaguar XF key fob has stopped working, it may be due to the battery that powers the coin is dead. It's easy to replace. Crofton drivers will know it's time to replace the battery when their key fob ceases to function or isn't as effective in locking and unlocking from at a distance. Your Jaguar InControl ®, touchscreen may display a message saying “Smart key battery is low”. To replace the battery, slide the emergency key blade to remove the fob cover. jaguar activity key cost uk in order to remove any chrome pieces on the side, and then cut off the two halves of the fob key. Replace the battery you have previously used by ensuring that the positive side is facing upwards. Water damage If your Jaguar XF key fob has been exposed to soapy water, or has been exposed to salt water, the electronic chip inside may be damaged. The key fob might not function, and you'll need to purchase a replacement from your dealer. In this situation it is recommended to disassemble the key fob and clean the metal clips as well as the electronic chip using isopropyl alcohol. If the remote control does not work, it could be caused by signal interference. It could be caused due to nearby transmitters operating on the same frequency as the remote control for your XF or by obstructions like buildings or trees. If you move away the remote control should remain functional. Your Jaguar is designed to monitor itself continuously from engine performance to emissions to the lights and brakes. This means that if it starts to run low on battery power, you'll be notified by warnings. The key fob will lose its range and you will receive an error message that reads “SMART Key low battery”. It is necessary to replace your Jaguar XF keyfob battery as quickly as possible to avoid any problems. Contacts for the battery that are defective Jaguar key fobs offer many more features than conventional mechanical keys. They are also more sophisticated. However, just like any other electronic device, they will eventually fail or cease to function completely. The battery could need to be replaced if the lock button on the Jaguar key fob begins to malfunction. Most auto parts stores sell replacement batteries for Jaguar key fobs. Before replacing the battery, be sure that the battery you purchase is a genuine Jaguar part. This will ensure that it is the correct size and voltage. Being careful when handling the battery is vital, as the moisture from the skin and oil could be transferred to the edges, decreasing battery life and damaging the contacts. A Jaguar key fob can be used as remote control to open the doors of your vehicle to activate the alarm and open the sunroof and windows. It can double-lock your car to guard it from thieves. The Jaguar key fob is secured by a steel casing, which makes it difficult to break or damage. A malfunctioning receiver module The key fob emits an audio signal at a low frequency that is interpreted by a receiver module within the Jaguar. This module receives a signal from your smart-key and activates or disarms your security system. The module also lets you to start your vehicle and control the audio system. The receiver module may be inoperable if it's defective. To fix the issue you must drain the battery to 12 volts by disconnecting it from both terminals, and then waiting for a few minutes. Reconnect the battery in reverse. Another common reason for Jaguar XF key fob not working is interference from nearby objects or transmitters on the same frequency. Interference can also stop the Body Control Module from recognizing key signals. The key fob can be programmed to work again by following the steps in the owner's manual. Electronic chip malfunctions Jaguar key fobs have electronic transponder chips which are programmed. The chips receive a specific remote control signal, and send it to your car's receiver module. If the receiver module becomes faulty, you will not be able to use the key fob to unlock or lock your vehicle. Fortunately, there are a few common causes that you can solve yourself. First, make sure that the button on the key fob works. If not, you probably have an old button or contact. It is important to replace the batteries correctly. Make sure you use identical in size, voltage and specifications as the original. Also, make sure that the new battery has not been exposed to water or salt. It is important to find a skilled locksmith who is capable of repairing or replacing your Jaguar key fob. This kind of service is costly, but it's significantly less expensive than purchasing a new key fob at the dealer. If you have the proper tools, you could do this yourself.