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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 offers security features like the capability to “double lock” your vehicle, preventing thieves from breaking windows to gain access. There are a myriad of reasons for why the Jaguar XF keyfob may not function. It could be due to a dead or defective coin battery, signal interference, and a malfunctioning electronic chip. Dead coin battery Modern electronic keys offer more convenience and security than manual keys. They can lock and unlock your car, turn on the lights and then start the engine. They have additional features that allow you to drive more easily. However, they will lose their charge in time. If you have noticed that the key fob of your Jaguar XF isn't functioning, it could be due to a dead coin battery. It's easy to replace. Crofton drivers will know it's time to replace their battery when their key fob ceases to function or is less effective at locking and unlocking from at a distance. You may also receive a message on your Jaguar InControl ® touchscreen interface that says “Smart key battery low”. To replace the battery to replace the battery, slide the emergency key blade to take off the fob cover. Then pull the emergency key to take out the chrome side bits and to separate the two parts of the key fob's body. Replace the battery that was used with a new one, making sure you place it with the positive side facing upwards. Water damage If your Jaguar XF key fob has been exposed to soapy water, or was exposed to salt water, the chip inside may be damaged. This could prevent the key fob from working, causing you to need a replacement from your dealer. In this instance, you should disassemble the key fob and clean the metal clips and the electronic chip with isopropyl alcohol. Signal interference could be the cause of a remote which isn't working. It could be caused by nearby transmitters that use the same frequency as the remote control on your XF or by obstructions such as buildings or trees. The remote control should continue to function even if you are away from the source of the interference. Your Jaguar is designed to constantly monitor itself from engine performance to emissions to the brakes and lights. This means that if it begins to lose battery power, you'll be notified by 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 as soon as you can to avoid these problems. Contacts of the battery may be damaged. Jaguar key fobs have many more features than conventional mechanical keys. They are also more sophisticated. However, as with any electronic device, they could eventually become worn out or cease to function completely. If the lock button on your Jaguar key fob starts to fail, it's likely that the battery needs to be replaced. The majority of auto parts stores offer replacement batteries for Jaguar key fobs. Before replacing the battery, make sure it is an original Jaguar part. This will ensure it's the correct size and voltage. It is also important to handle the battery in a controlled manner since touching its outer edges can transfer skin moisture and oil which could reduce battery life and corrode the contacts. A Jaguar key fob can be used as a remote control to unlock the doors of your car as well as to turn off the alarm and open the sunroof as well as windows. It can also double-lock your vehicle, making sure it is secure from theft. The Jaguar key fob has a metal casing that makes it impossible to break or destroy. A malfunctioning receiver module The key fob sends out the radio signal at a low-frequency that is picked up by a receiver module inside the Jaguar. This module receives a signal from your smart-key and then activates or deactivates your security system. The module also lets you to start your car and control the audio system. jaguar xf spare key might cease to function if it's faulty. Drain the 12 volts battery by disconnecting both terminals. Take a moment to wait. Reconnect the battery in reverse. Another reason for Jaguar XF key fob not working is interference from surrounding objects or transmitters on the same frequency. Interference can also hinder the Body Control Module (BCM) from understanding the key signals. The key fob is reprogrammed to work properly again by following the instructions in the owner's manual. A malfunctioning electronic chip Jaguar key fobs are fitted with electronic, encrypted transponder chips. These chips detect a unique signal from the remote control and send it to the receiver module within your vehicle. If this receiver module becomes defective, you won't be capable of using the key fob to lock or unlock your vehicle. There are several common causes that you can repair yourself. First, make sure that the button on your key fob is working properly. If it's not, you have worn-out buttons or contact. It is also essential to replace the battery in a proper manner. Make sure you use an alternative battery that has the same size, voltage and specifications as the original. Also, ensure that the new battery isn't exposed to salt or water. If your Jaguar key fob has a problem it is vital to find a professional locksmith who can fix or replace it. This is costly, however it is less expensive than buying a new key fob at the dealer. You can even complete this job yourself if the right equipment.