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How to Replace a Dead Coin Battery in Your Jaguar XF The Jaguar Smart Key allows you to lock and unlock your Jaguar quickly. It also comes with security features, including the ability “double lock” an automobile to stop thieves from breaking into your windows to gain access. There are many reasons 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 provide more convenience and security than traditional manual keys. They can lock and unlock the vehicle, turn on the lights and even start the motor. They also have added features that make driving more convenient. They may lose their charge over time. If you're Jaguar XF key fob has stopped working, it may be due to the battery that powers the coin is dead. The good news is that replacing it is a simple and easy fix. Crofton drivers will know it's time for a new battery when the key fob isn't effective at locking and unlocking from long distances or stops working altogether. There's also a message on your Jaguar InControl ® touchscreen interface that reads “Smart key battery low”. Slide the blade for the emergency key out to remove the cover of the key fob. Pull the emergency key to remove any chrome bits that are on the side and then separate the two halves of the fob for the key. Replace The Key Lab that was used making sure that the positive side is facing upward. Water damage If your Jaguar XF key fob has been exposed to soapy water, or it has been exposed to salt water, the chip inside could be damaged. This could stop the key fob from functioning and you will need an upgrade from your dealer. In this case you should take apart your key fob and clean the metal clip that holds it and the chip using isopropylethanol. Signal interference could be the cause of a remote control which isn't working. It could be due to nearby transmitters operating on the exact frequency as the remote control from XF, or it may be caused by objects like trees or structures. If you move away, the remote control should be able to work. Your Jaguar is designed to continuously monitor itself from engine performance to emissions to the lights and brakes. This means that if your car begins to run out of battery power, it will send warnings. One of these will be an increase in the range of your key fob, and another one will be a message that reads “SMART Key Battery Low.” You'll need to replace the Jaguar XF key fob battery as soon as possible to avoid the problems. Contacts of the battery may be damaged. Modern Jaguar key fobs are more advanced than traditional mechanical keys, and offer a variety of additional features. Like all electronic devices, they can become worn out with time or cease functioning completely. If the lock button on your Jaguar key fob starts to fail, it's likely that the battery will need to be replaced. The majority of auto parts stores sell replacement batteries for Jaguar key fobs. Before replacing the battery, ensure that it is an original Jaguar part. This will guarantee that it's the correct size and voltage. Being careful when handling the battery is crucial, as oils and skin moisture can be transferred to the edges, reducing battery life and corrosion of the contacts. A Jaguar key fob can be used as a remote control to unlock the doors of your car as well as to turn off the alarm and open the sunroof and windows. It can even double-lock the vehicle, ensuring that it is secure from theft. The Jaguar key fob features an aluminum casing, which makes it impossible to break or damage. Faulty receiver module The key fob functions by transmitting a radio signal that is detected by the receiver module within your Jaguar. The receiver module receives the signal from your smart keys and opens the door locks, or disables the security system. The module also lets you to start your vehicle and control the audio system. If the receiver module is damaged and stops working, it could cause the system to stop. Drain the 12 volts battery by disconnecting both terminals. It should take a few seconds. Reconnect the battery in reverse. Interference from nearby transmitters or objects using the same frequency is another common cause for Jaguar XF keyfob not working. Interference can also stop the Body Control Module from recognizing key signals. The key fob can be reset to work once more by following the directions in the owner's manual. Faulty electronic chip Jaguar key fobs come with digital, coded transponder chips. These chips detect a unique signal from the remote control and send it to the receiver module within your vehicle. If the receiver module is not functioning properly it will block you from using your key fob to lock or unlock your vehicle. There are several common issues that you can fix yourself. The first step is to check if the button on your key fob is functioning properly. If not, it's likely that the button or contact is damaged. It is important to replace the batteries in a correct manner. Make sure to use a battery with the same voltage, size and specification as the original. Make sure the new battery doesn't come into contact with water or salt. It is important to find a reputable locksmith who can repair or replacing your Jaguar key fob. This kind of service is expensive, but far less expensive than purchasing an alternative key fob from the dealer. You could even complete the task yourself if you have the proper equipment.