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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. There are a variety of reasons that your Jaguar XF key fob might not work. One of them is a malfunctioning battery, signal interference, or an incompatible chip. Dead coin battery Modern electronic keys offer greater convenience and security than manual keys. They can lock and unlock the vehicle, turn on lights and even start the motor. They also come with additional features that make driving more convenient. However, they could lose their charge over time. If you've noticed that your Jaguar XF's key fob isn't functioning it could be due to a dead battery in the coin. The good news is that replacing it is a quick and easy fix. Crofton drivers can tell when it's time to replace their battery when their key fob stops working or isn't as effective in locking and unlocking from a distance. There's also an alert on your Jaguar InControl ® touchscreen interface that says “Smart key battery low”. Slide the blade of the emergency key out to expose the cover of the key fob. Then, pull the emergency key in order to remove the chrome side bits and then separate from the key fob's body. Replace the old battery with a brand new one, making sure that you place it with the positive side facing upward. Water damage The electronic chip in the Jaguar XF's key fob could be damaged if it has been exposed salt water or has survived a soapy bath. The key fob may not work, and you'll need buy a new one from your dealer. In this scenario, remove your key fob and clean the metal retaining clip as well as the chip using isopropyl ethanol. Signal interference could be a cause of a remote which isn't working. This could be caused by nearby transmitters on the same frequency as your XF's remote control or caused by other objects like buildings or trees. jaguar xf spare key should continue function if you remove yourself from the source of interference. Your Jaguar is designed to continuously monitor itself including engine performance and emissions to the lights and brakes. This means that if it begins to run out of battery power, you'll be notified by warnings. One of them will be a decrease in the range of your key fob. another one will be a message that reads “SMART KEY BATTERY LOW.” It is recommended to replace the Jaguar XF key fob battery as soon as possible to avoid problems. Contacts to the battery are not working properly. Modern Jaguar key fobs are far more sophisticated than traditional mechanical keys and offer a variety of additional functionality. However, like any other electronic device, they will eventually fail or cease functioning completely. The battery may need to be replaced when the lock button on the Jaguar key fob starts to malfunction. Most auto parts stores sell replacement batteries for Jaguar key fobs. Before replacing the battery, ensure that the new battery is a genuine Jaguar part. This will ensure that it is the correct size and voltage. Handling the battery with care is essential, since oils and skin moisture can be transferred to the outer edges, decreasing battery life and corrosion of the contacts. A Jaguar key fob can be used as an remote control that allows you to unlock the doors of your vehicle to activate the alarm and open the sunroof and windows. It can double lock your vehicle to protect it from thieves. The Jaguar key fob is protected by a metal casing making it impossible to break or scratch. The receiver module is not working properly. The key fob functions by transmitting a low-frequency radio signal that is interpreted by the receiver module inside your Jaguar. This module receives the signal from your smart-key, and then activates or deactivates your security systems. The module also lets you to start your car and control the audio system. If the receiver module fails and stops working, it could cause the system to stop. Drain the 12 volts battery by disconnecting both terminals. Wait a few moments. Reconnect the battery in reverse. Interference from nearby transmitters or objects that operate on the same frequency is another common cause for Jaguar XF keyfob not working. Interference may also hinder the Body Control Module from recognizing key signals. The key fob can be programmed to work properly again by following the directions in the owner's manual. A malfunctioning electronic chip Jaguar key fobs include electronic transponder chips which are programmed. The chips read a specific signal from the remote control, and send it to the receiver module that is in your vehicle. If the receiver module is not functioning properly this will prevent you from using your key fob to unlock and lock your car. Luckily, there are some common causes of this problem which you can resolve yourself. First, check whether the key fob's button functioning correctly. If not, it's a sign that the button or contact is worn out. It is important to replace the batteries correctly. Be sure to choose an alternative battery that has the same voltage, size and specifications as the original one. Make sure that the new battery does not come into contact with salt or water. It is important to find a reputable locksmith that is able to repair or replacing your Jaguar key fob. This type of service is expensive, but much cheaper than buying a new key fob at the dealer. You can even complete this task yourself if you have the appropriate equipment.