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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 comes with security features like the ability to “double lock” your vehicle to stop thieves from breaking your windows to gain access. There are a myriad of reasons why the Jaguar XF keyfob may not work. Some of these include a malfunctioning battery, signal interference or the chip is defective. Dead coin battery Modern electronic key fobs provide more convenience and security than traditional manual keys. They can lock and unlock the vehicle, turn on lights and even start the motor. They come with additional features that allow you to drive more easily. They are prone to losing their battery over time. If you've noticed that the key fob of your Jaguar XF 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 the battery when their key fob ceases to function or is less effective at locking and unlocking from at a distance. The Jaguar InControl ® touchscreen interface may display a message that reads “Smart key battery is low”. To replace the battery to replace the battery, slide the emergency key blade to remove the cover of the fob. Pull the emergency key in order to remove any chrome pieces on the side and then separate the two halves of the key fob. Replace the battery you have previously used and ensure that the positive side is facing upward. Water damage The chip that is embedded in your Jaguar XF's key fob could be damaged if has been exposed salt water or has survived a soapy bath. This can prevent the key fob from functioning and force you to purchase an alternative from your dealer. In this instance you must disassemble the key fob and clean the metal clips and the electronic chip using isopropyl alcohol. Signal interference could be the cause of a remote control that doesn't work. This can be caused either by nearby transmitters that use the same frequency as the remote control on your XF or by objects such as buildings or trees. If you move, the remote control should still work. Your Jaguar is designed to constantly monitor itself including engine performance and emissions to the lights and brakes. If you're alerted, the battery is in low. One of these is a decrease in the range of your key fob and another warning message that reads “SMART KEY BATTERY LOW.” It is recommended to replace the Jaguar XF key fob battery immediately to avoid the problems. Contacts of the battery may be damaged. Modern Jaguar key fobs are more sophisticated than traditional mechanical keys and they provide a wealth of additional functions. Like any electronic device, these can wear out over time or cease working altogether. The battery might need to be replaced if the lock button on the Jaguar key fob starts to fail. You can buy replacement batteries for your Jaguar key fob at most auto parts stores. Before replacing the battery, be sure that the new battery is a genuine Jaguar part. This will guarantee that it's the correct size and voltage. Careful handling of the battery is important, as the moisture from the skin and oil could be transferred to the edges, decreasing battery life and corroding the contacts. A Jaguar key fob can be used as remote control to open the doors of your car as well as to turn off the alarm and open the sunroof as well as windows. It can also double-lock your vehicle, ensuring it is secure from theft. The Jaguar key fob has an aluminum casing, which makes it difficult to break or destroy. A malfunctioning receiver module The key fob emits the radio signal at a low frequency that is picked up by a receiver module within the Jaguar. This module receives the signal from your smart key and activates the door locks, or deactivates the security system. This module also allows you to start your vehicle and control the audio system. If the receiver module is faulty it may stop working. To fix the issue you must drain the 12 volt battery by disconnecting it from both terminals while waiting for some time. Then, reconnect the battery in reverse. Another reason that is commonly cited for Jaguar XF key fob not working is interference from objects or transmitters operating on the same frequency. jaguar xj8 key fob programming can also prevent the Body Control Module from recognizing key signals. You can reprogramme the key fob to allow it to work again by following the instructions in the owner's manual. Faulty electronic chip Jaguar key fobs are equipped with electronic transponder chips, which are coded. These chips receive a distinct remote control signal and send it to the car's receiver module. If the receiver module becomes damaged, you will not be allowed to use your key fob to unlock or lock your vehicle. Luckily, there are some common causes which you can resolve yourself. Check first that the button on the key fob is functioning. If not, it's a sign that the button or contact is worn out. It is essential to replace the batteries in a correct manner. Be sure to choose one that has the same voltage, size, and specification as the original. Also, make sure that the new battery is not exposed to salt or water. If your Jaguar key fob is faulty it is essential to find a professional locksmith who can fix or replace it. This kind of service is costly, but it's far less expensive than purchasing a new key fob at the dealer. If you have the proper tools, you could do this yourself.