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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 offers security features like the capability to “double lock” your vehicle, preventing thieves from breaking windows to gain access. There are many reasons for why your Jaguar XF key fob might not function. There are a variety of reasons, including a malfunctioning battery, signal interference or the chip is defective. Dead coin battery Modern electronic keys offer more convenience and security than traditional keys that are manually operated. They can lock and unlock the vehicle, turn on the lights and start the engine. They also have additional features that make driving more convenient. They are prone to losing their battery over time. If you're Jaguar XF key fob has stopped working, it may be because the battery is dead. It is easy to replace. Crofton drivers can tell it's time to replace the battery if their key fob stops working or becomes less effective at locking and unlocking from a distance. You may also receive a message on your Jaguar InControl ® touchscreen interface that says “Smart key battery low”. To replace the battery, slide the emergency key blade to take off the cover of the fob. Then pull the emergency key to take out the chrome side bits and separate the two parts of the key fob's body. Replace the old battery by a new one making sure that you place it with the positive side facing upwards. 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 may be damaged. This can prevent the key fob from working, causing you to need an alternative from your dealer. In this situation, you should disassemble your key fob, and clean the metal retaining clip as well as the chip with isopropyl ethanol. If the remote control still isn't working, it could be caused by signal interference. This can be caused due to nearby transmitters operating on the same frequency as the remote control on your XF, or by objects like buildings or trees. The remote control should continue to work if you move away from the source of the interference. Your Jaguar is built to monitor itself constantly – from engine performance and emissions to the lights and brakes. If you're alerted, the battery is low. One of them will be a decrease in the range of your key fob and another will be a 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 problems. Contacts for the battery that are defective Jaguar key fobs offer many more features than traditional mechanical keys. They are also more sophisticated. Like any electronic device, they can become worn out with time or cease working altogether. If the lock button on your Jaguar key fob starts to malfunction, it is likely that the battery needs to be replaced. You can purchase replacement batteries for your Jaguar key fob from most auto parts stores. Before you replace the battery ensure that it's an original Jaguar part. This will ensure it's the correct size and voltage. It is also important to take care when handling the battery as touching its outside edges could transfer oil and moisture from the skin, which can reduce battery life and cause corrosion to the contacts. A Jaguar key fob is a remote control that can unlock the doors of your car, activate the alarm, and open the windows and sunroof. It can double-lock your vehicle to protect it from thieves. The Jaguar key fob is made of a metal casing that makes it impossible to break or destroy. Faulty receiver module The key fob transmits an audio signal at a low frequency that is interpreted by a receiver module inside the Jaguar. This module receives a signal from your smart-key and then activates or disarms your security system. It also allows you to start your vehicle and control the audio system. If the receiver module is faulty 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. Another reason that is commonly cited for Jaguar XF key fob not functioning is interference from other objects or transmitters on the same frequency. Interference may also hinder the Body Control Module from recognizing key signals. You can reprogramme the key fob to make it work again by following instructions in the owner's manual. Faulty electronic chip Jaguar key fobs are fitted with electronic, encrypted transponder chips. The chips read a specific signal from the remote control and relay it to the receiver module within your vehicle. If the receiver module is faulty, you will not be able to use the key fob to unlock or lock your vehicle. There are several common causes that you can fix yourself. Verify first that g28carkeys.co.uk on the key fob works. If not, it's likely that the button or contact is worn out. It is important to replace the batteries correctly. Make sure to use a battery with the same voltage, size and specification as your original. Make sure the new battery doesn't come into contact with salt or water. If your Jaguar key fob is faulty It is crucial to find a reputable locksmith who can repair or replace it. This kind of service is expensive, but it is cheaper than purchasing the replacement key fob from the dealer. If you have the proper tools, you can complete this yourself.