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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 has security features, such as the ability to “double lock” your vehicle, preventing thieves from breaking windows to gain access. There are a myriad of reasons that the Jaguar XF keyfob may not function. These include a dead coin battery, signal interference, and a defective electronic chip. Dead coin battery Modern electronic keys offer greater convenience and security than traditional keys that are manually operated. They can be used to lock and unlock your vehicle, switch on the lights and turn off the engine. They also come with features that make driving easier. 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 coin battery. It's simple to replace. Crofton drivers will know it's time to replace the battery if their key fob ceases to function or becomes less effective at locking and unlocking from at a distance. You may also receive an alert on your Jaguar InControl ® touchscreen interface that reads “Smart key battery low”. To replace The Key Lab , slide the emergency key blade to take off the fob cover. Pull the emergency key to remove any chrome bits on the side and then separate the two halves of the key fob. Replace the old battery with a new one making sure that you place it with the positive side facing upward. Water damage If your Jaguar XF key fob has been through a bath with soapy water, or it has been exposed to salt water, the electronic chip inside may be damaged. This could stop the key fob from working, causing you to need an alternative from your dealer. In this situation, you should remove your key fob and clean the metal clip that holds it and the chip using isopropyl ethanol. If the remote control does not work, it could be due to signal interference. It could be due to nearby transmitters operating on the same frequency as your remote control on XF, or it may be caused by objects such as trees or buildings. If you move, the remote control should be able to work. Your Jaguar is designed so that it constantly monitors itself in all aspects, from engine performance to emissions to brakes and lights. You'll be notified if the battery is running low. One of these will be an increase in the range of your key fob, and another one will be a message that reads “SMART KEY BATTERY LOW.” It is recommended to replace the Jaguar XF key fob battery as soon as possible to avoid these issues. Faulty battery contacts Modern Jaguar key fobs are far more sophisticated than mechanical keys of the past, and they provide a wealth of additional features. Like any electronic device they are prone to wear out over time or stop functioning completely. If the lock button on your Jaguar key fob starts to fail, it's likely that the battery will need to be replaced. Most auto parts stores carry replacement batteries for Jaguar key fobs. Before replacing the battery, be sure that the replacement is genuine Jaguar part. This will ensure it's the right size and voltage. The proper handling of the battery is important, as skin moisture and oil may be transferred to the edges, reducing the battery's life and damaging 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 guard it from thieves. The Jaguar key fob is protected by a casing made of metal, which makes it difficult to damage or break. Receiver module that is defective The key fob emits an radio signal at a low frequency which is detected by a receiver unit in the Jaguar. The receiver module receives the signal from your smart key and then activates the door locks, or disarms the security system. The module also lets you to start your car and control the audio system. If the receiver module fails and is not working properly, it will stop working. Remove the battery of 12 volts by disconnecting both terminals. It should take a few seconds. Reconnect the battery in reverse. Interference from nearby transmitters or objects using the same frequency is another reason that is commonly cited for Jaguar XF keyfob not working. Interference can also block the Body Control Module (BCM) from recognizing the key signals. The key fob is reprogrammed to work again by following the instructions in the owner's manual. Electronic chip that is malfunctioning Jaguar key fobs come with electronic, coded transponder chips. The chips read a specific signal from the remote control and send it to the receiver module inside 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 issues that you can fix yourself. First, check whether the key fob's button is working correctly. If it's not, you may have an old button or contact. It is essential to replace the batteries correctly. Be sure to choose one that has identical in size, voltage, and specification as the original one. Make sure that the new battery is not brought into contact with water or salt. If your Jaguar key fob has a problem, it is important to find a professional locksmith who can repair or replace it. This kind of service can be expensive, but it is significantly less expensive than purchasing an alternative key fob from the dealer. You could even complete the job yourself if you have the right equipment.