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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 provides 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 the Jaguar XF keyfob may not function. One of them is a malfunctioning battery, signal interference and an incompatible chip. Dead coin battery Modern electronic keys provide greater convenience and security than traditional keys that are manually operated. They can be used to lock and unlock your car, turn on the lights and turn off the engine. They have additional features that make driving easier. They can lose their charge with time. If you have noticed that the key fob of your Jaguar XF isn't working, it could be due to a dead battery in the coin. It is easy to replace. Crofton drivers will know it's time to replace the battery when their key fob stops working or is less effective at locking and unlocking from the distance. Your Jaguar InControl ® touchscreen interface could display a message saying “Smart key battery is depleted”. Slide the emergency key blade out to take off the cover of the fob. 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 new one, making sure to put it with the positive side facing upwards. Water damage If your Jaguar XF key fob has survived a bath in soapy water, or it has been exposed to salt water, the electronic chip inside could be damaged. This could prevent the key fob from working and cause you to require an alternative from your dealer. In this case you should disassemble your key fob, and clean the metal retaining clip as well as the chip with isopropyl alcohol. Signal interference could be the reason of a remote which isn't working. This can be caused by nearby transmitters that operate on the same frequency as the remote control on your XF, or by objects like buildings or trees. The remote control should continue work if you move away from the source of interference. Your Jaguar is built so that it is constantly monitoring itself, from the engine's performance to emissions to brakes and lights. This means that if your car begins to run out of battery power, you'll receive warnings. One of these will be an increase in the range of your key fob, and another message that reads “SMART KEY BATTERY LOW.” It is recommended to replace the Jaguar XF key fob battery in the earliest time possible to avoid these issues. Contacts to the battery are not working properly. Modern Jaguar key fobs are more advanced than traditional mechanical keys and they provide a wealth of additional features. Like all electronic devices, these can wear out over time or stop working altogether. If the lock button on your Jaguar key fob starts to fail, it's likely that the battery needs to be replaced. You can purchase replacement batteries for your Jaguar key fob from most auto parts stores. But before you replace the battery, be sure that the battery you purchase is genuine Jaguar part. This will ensure that it is of the correct size and voltage. Handling the battery with care is important, as skin moisture and oil may be transferred to the outer edges, decreasing battery life and damaging the contacts. A Jaguar key fob can be used as remote control to unlock the doors of your car activate the alarm, and open the sunroof as well as windows. It can also double-lock your vehicle, ensuring that it is safe from thieves. www.g28carkeys.co.uk is made of a metal casing that makes it hard to break or harm. The receiver module is not working properly. The key fob functions by transmitting a low-frequency radio signal that is detected by the receiver module in your Jaguar. The module receives a signal from your smart-key and then activates or disarms your security system. It also allows you to start your car and manage the audio system. The receiver module may be inoperable if it's malfunctioning. The battery that is 12 volts should be removed by disconnecting both terminals. Give it a few minutes. 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. Interference can also prevent the Body Control Module from recognizing key signals. You can reprogram the key fob to make it work again by following the instructions in the owner's manual. Electronic chip that is malfunctioning Jaguar key fobs are equipped with electronic, encrypted transponder chips. These chips receive a distinct remote control signal and send it to your car's receiver module. If the receiver module is defective it will stop you from using your key fob to lock and unlock your vehicle. Fortunately, there are common causes that you can fix yourself. First, verify that the button on your key fob is working properly. If it's not, it's likely that the button or contact is worn out. It is important to replace the battery in a proper manner. Make sure you use a battery that has the same size, voltage, and specifications as your original. Also, ensure that the new battery has not been exposed to water or salt. It is important to find an experienced locksmith who can fix or replacing your Jaguar key fob. This kind of service is expensive, but it is far less expensive than purchasing a new key fob at the dealer. You can do this task yourself if your have the proper equipment.