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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, including the ability “double lock” your vehicle to stop thieves from breaking windows to gain entry. There are many reasons for why the Jaguar XF keyfob may not function. These include a dead coin battery, signal interference, and a damaged electronic chip. Dead coin battery Modern electronic keys provide more security and convenience than traditional keys. They can be used to lock and unlock the vehicle, turn on the lights and even start the motor. They have additional features that allow you to drive more easily. However, they could lose their charge as time passes. If you have noticed that the key fob of your Jaguar XF isn't working it could be due to a dead coin battery. It's simple to replace. Crofton drivers will recognize it's time for replacement batteries when the key fob isn't effective in locking and unlocking over long distances or ceases to function altogether. You might also get an email on your Jaguar InControl ® touchscreen interface that says “Smart key battery low”. Slide the emergency key blade out to take off the cover on the fob. Pull the emergency key in order to remove any chrome bits from the side. Then, separate the two halves of the fob for the key. Replace the old battery with a new one making sure to place it with the positive side facing upward. Water damage The chip that is embedded in the key fob of your Jaguar XF could be damaged if it has been exposed to saltwater or survived a soapy bath. This can stop the key fob from working and cause you to require an upgrade from your dealer. In this situation, you should disassemble your key fob and clean the metal clip that holds it and the chip with isopropyl alcohol. If the remote control does not work, it could be caused by signal interference. It could be due to nearby transmitters operating on the exact frequency as the XF's remote control, or it may be caused by other objects like trees or structures. If you relocate, the remote control should remain functional. Your Jaguar is built so that it constantly monitors itself in all aspects, from engine's performance, to emissions, to brakes and lights. You'll be notified if the battery is in low. The key fob will lose its range and you'll receive a message stating “SMART KEY LOW BATTERY”. You will need to replace the battery in your Jaguar XF keyfob battery as fast as you can in order to avoid any problems. Faulty battery contacts Modern Jaguar key fobs are far more sophisticated than traditional mechanical keys, and they come with a host of additional functions. But, as with any electronic device, they can eventually get worn out or stop working entirely. If the lock button on your Jaguar key fob starts to fail, it's likely that the battery needs to be replaced. You can buy replacement batteries for your Jaguar key fob at a variety of auto parts stores. Before replacing the battery, ensure that it is an original Jaguar part. This will ensure that it is of the proper size and voltage. Handling the battery with care is important, as skin moisture and oil can be transferred to the outer edges, which can reduce battery life and corroding the contacts. A Jaguar key fob is a remote control that will unlock the doors of your car as well as activate the alarm and open the windows and sunroof. It can double lock your vehicle to guard it from thieves. The Jaguar key fob is secured by a metal casing making it impossible to break or damage. Faulty receiver module The key fob emits a radio signal at a low-frequency that is picked up by a receiver module inside the 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. The receiver module may be inoperable if it's faulty. To resolve the problem you must drain the battery with 12 volts by disconnecting it from both terminals and letting it sit for some time. Reconnect the battery in reverse. Interference from nearby transmitters or objects using the same frequency are another common reason for Jaguar XF keyfob not working. Interference can also block the Body Control Module (BCM) from understanding the key signals. You can reprogramme the key fob to make it function again by following the directions in the owner’s manual. Faulty electronic chip Jaguar key fobs are equipped with digital, coded transponder chips. spare jaguar keys receive a distinct remote control signal and transmit it to the receiver module. If the receiver module is defective it will stop you from using your key fob to unlock and lock your car. Fortunately, there are common causes of this problem that you can fix yourself. Check first that the button on the key fob is functioning. If not, it's likely that the button or contact is worn out. It is also crucial to replace the battery in a proper manner. Make sure you use a battery that is the same voltage, size and specifications as the original. Also, make sure that the new battery is not exposed to salt or water. It is crucial to find an experienced locksmith who can repair or replacing your Jaguar key fob. This kind of service can be expensive, but it is much cheaper than buying a new key fob at the dealer. You could even complete the job yourself if the proper equipment.