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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 has security features, like the ability to “double lock” the vehicle to stop thieves from breaking into your windows to gain access. However, there are numerous reasons that your Jaguar XF key fob might not work. There are a variety of reasons, including a dead battery, signal interference, and an unreliable chip. Dead coin battery Modern electronic key fobs offer more security and convenience than traditional keys. They can be used to lock and unlock the vehicle, turn on the lights and start the motor. They also come with additional features to make driving easier. However, they will lose their charge in time. If you've 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 know it's time for replacement batteries when the key fob isn't as efficient at locking and unlocking over long distances, or it stops working completely. There's also a message on your Jaguar InControl ® touchscreen interface that says “Smart key battery low”. Slide the emergency key blade out to remove the cover on the fob. Then pull the emergency key in order to remove the chrome side bits and then separate the two parts of the key fob's body. Replace the battery you have previously used and ensure that the positive side is facing upwards. Water damage The chip inside the key fob of your Jaguar XF could be damaged if it has been exposed to saltwater or survived the effects of a soapy bath. The key fob might not function properly, and you'll have to buy a new one from your dealer. In this case you should take apart your key fob and clean the metal retaining clip and the chip using isopropyl ethanol. If the remote control still doesn't work, it might be caused by signal interference. This can be caused by nearby transmitters that operate on the same frequency as your remote control for XF, or it may be caused by other objects like buildings or trees. If you move the remote control should still work. Your Jaguar is designed to continuously monitor itself from engine performance to emissions to the lights and brakes. This means that when it begins to lose battery power, you'll receive warnings. One of these will be a decrease in the range of your key fob. another message that reads “SMART KEY BATTERY LOW.” You'll need to replace the Jaguar XF key fob battery as soon as possible to avoid the problems. Contacts of the battery may be damaged. Modern Jaguar key fobs are far more sophisticated than traditional mechanical keys and they provide a wealth of additional functions. Like all electronic devices, they will wear out over time, or cease functioning completely. If the lock button on your Jaguar key fob begins to fail, it's likely that the battery needs to be replaced. The majority of auto parts stores sell replacement batteries for Jaguar key fobs. Before replacing the battery, make sure that the replacement is a genuine Jaguar part. This will ensure that it is of the right size and voltage. Being careful when handling the battery is important, as skin moisture and oil can be transferred to the edges, reducing battery life and corroding the contacts. A Jaguar key fob is a remote control which 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 secured by a casing made of metal, making it difficult to break or damage. A malfunctioning receiver module The key fob functions by transmitting a radio signal which is detected by the receiver module of your Jaguar. The receiver module receives the signal from your smart key and activates the door locks, or disarms the security system. The module also lets you to start your vehicle and control the audio system. If the receiver module is faulty it may stop working. To resolve the issue remove the battery with 12 volts by disconnecting it from both terminals and waiting for several minutes. Reconnect the battery in reverse. Another common reason for Jaguar XF key fob not working is interference from surrounding objects or transmitters operating on the same frequency. Interference can also block the Body Control Module from recognizing key signals. You can reprogramme the key fob to allow it to work once more by following the steps in the owner's manual. Electronic chip malfunctions Jaguar key fobs come with electronic transponder chips that are encoded. These chips receive a distinct remote control signal, and send it to your car's receiver module. If the receiver module is faulty this will prevent you from using your key fob to lock and unlock your car. Fortunately, there are on front page that you can solve yourself. The first step is to check if the key fob's button functioning correctly. If it is not working, it could be a worn out button or contact. It is also crucial to replace the battery properly. Make sure you use one that has the same voltage, size and specifications as the original one. Also, make sure that the new battery isn't exposed to salt or water. If your Jaguar key fob is broken, it is important to find a skilled locksmith who can fix or replace it. This service is expensive but it is less expensive than purchasing the new key fob from the dealer. You can even complete this task yourself if you have the proper equipment.