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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 offers security features like the capability to “double lock” your vehicle, preventing thieves from breaking windows to gain access. However, there are many reasons that your Jaguar XF key fob might not work. It could be due to a dead or defective coin battery, signal interference or a malfunctioning electronic chip. Dead coin battery Modern electronic keys provide greater convenience and security over traditional manual keys. They can lock and unlock the vehicle, turn on lights and start the engine. They also come with additional features that make driving more convenient. However, they can lose their charge as time passes. If you've noticed that the key fob of your Jaguar XF isn't functioning, it could be due to a dead coin battery. It's simple to replace. Crofton drivers will recognize it's time for an upgrade to their battery when the key fob isn't as effective in locking and unlocking over long distances, or it stops working completely. You might also get a message on your Jaguar InControl ® touchscreen interface saying “Smart key battery low”. To replace the battery to replace the battery, slide the emergency key blade to take off the fob cover. Then pull the emergency key to take out the chrome side bits and separate the two pieces of the key fob's body. Replace the battery that was used with a brand new one, making sure to put it with the positive side facing upward. Water damage If your Jaguar XF key fob has been through a bath with soapy water or has been exposed to salt water, the electronic chip inside could be damaged. The key fob may not function, and you'll have to purchase a replacement from a dealer. In this instance you should take apart the key fob and clean the metal clips and the electronic chip using isopropyl alcohol. Signal interference could be the cause of a remote that doesn't function. It could be caused by nearby transmitters using the same frequency as the remote control of your XF or by objects such as buildings or trees. The remote control should continue function if you remove yourself from the source of interference. Your Jaguar is designed so that it constantly monitors itself in all aspects, from engine's performance through emissions to brakes and lights. You'll be notified if the battery is running low. The key fob will be unable to function and you will receive an alert message that reads “SMART KEY LOW BATTERY”. It is necessary to replace the battery in your Jaguar XF keyfob battery as quickly as possible to avoid any problems. Contacts of the battery may be damaged. Jaguar key fobs come with many more features than traditional mechanical keys. They are also more sophisticated. But, as with any electronic device, they could eventually fail or cease working completely. The battery may need to be replaced if the lock button on the Jaguar key fob begins to fail. You can buy replacement batteries for your Jaguar key fob in most auto parts stores. Before replacing the battery, ensure that it's an original Jaguar part. This will ensure it's the correct size and voltage. Careful handling of the battery is essential, since skin moisture and oil may be transferred to the outer edges, decreasing battery life and corroding the contacts. A Jaguar key fob can be used as an remote control that allows you to unlock the doors of your car, activate the alarm and open the sunroof and windows. It can also double-lock your vehicle, ensuring that it is safe from thieves. The Jaguar key fob has an aluminum casing, which makes it impossible to break or harm. Faulty receiver module The key fob emits a radio signal at a low-frequency which is detected by a receiver unit in the Jaguar. This module receives the signal from your smart key, and then opens the door locks, or disables the security system. It also lets you start your car and manage the audio system. The receiver module may fail if faulty. Take out the 12 volt battery by disconnecting both terminals. Take a moment to wait. Reconnect the battery in reverse. Interference from nearby transmitters or objects using the same frequency is another common reason for Jaguar XF keyfob not working. Interference may also prevent the Body Control Module (BCM) from recognizing the key signals. The key fob is reprogrammed to work again by following the directions in the owner's manual. jaguar key programming The Keylab come with transponder electronic, coded chips. The chips receive a specific remote control signal, and send it to your car's receiver module. If the receiver module is defective, you won't be able to use the key fob to unlock or lock your car. Fortunately, there are common causes of this problem that you can solve yourself. Check first that the button on the key fob is working. If it is not, you have an old button or contact. It is also important to replace the battery in a proper manner. Use a new battery with the same size, voltage and specifications as the original. Also, ensure that the new battery is not exposed to water or salt. It is essential to find a reputable locksmith who can repair or replacing your Jaguar key fob. This kind of service can be expensive, but significantly less expensive than purchasing an alternative key fob from the dealer. If you have the right tools, you can complete this yourself.