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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, including the ability to “double lock” an automobile to stop thieves from breaking windows to gain access. There are many reasons that your Jaguar XF key fob might not work. These include a dead coin battery, signal interference, and a damaged electronic chip. Dead coin battery Modern electronic keys offer greater convenience and security over traditional keys that are manually operated. They can be used to lock and unlock the vehicle, turn on lights and start the engine. They also come with features that make driving easier. They are susceptible to losing charge with time. If your Jaguar XF key fob has stopped working, it may be due to the fact that the coin battery is dead. It is easy to replace. Crofton drivers can tell when it's time to replace the battery when their key fob ceases to function or is less effective in locking and unlocking from a distance. The Jaguar InControl ®, touchscreen interface may display a message that reads “Smart key battery is low”. Slide the blade of the emergency key out to take off the fob's cover. Then, pull the emergency key in order to remove the chrome side bits and then separate from the key fob's body. Replace the battery that was used 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 was exposed to salt water, the chip inside could be damaged. This can stop the key fob from functioning and force you to purchase an alternative from your dealer. In this scenario it is recommended to disassemble the key fob and clean the metal retaining clips as well as the electronic chip using isopropyl alcohol. Signal interference could be the cause of a remote which isn't working. It could be due to nearby transmitters that operate on the same frequency as the remote control from XF or caused by objects such as trees or structures. If you move away the remote control should be able to work. Your Jaguar is designed so that it constantly monitors itself all the way from engine performance to emissions to brakes and lights. If you're alerted, the battery is not functioning properly. The key fob will be unable to function and you will receive a message stating “SMART Key LOW BATTERY”. You'll need to replace your Jaguar XF keyfob battery as quick as you can to avoid any issues. Faulty battery contacts Jaguar key fobs offer many more features than conventional mechanical keys. They are also more sophisticated. However, just like any other electronic device, they may eventually wear out or cease working completely. If the lock button on your Jaguar key fob begins to fail, it's likely that the battery will need 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 that it is the correct size and voltage. The Key Lab is also essential to handle the battery in a controlled manner as touching its outside edges could transfer skin moisture and oil that can shorten battery life and corrode the contacts. A Jaguar key fob can be used as a remote control to unlock the doors of your car to activate the alarm and open the sunroof as well as windows. It can also double-lock your vehicle to guard it from thieves. The Jaguar key fob features a metal casing that makes it hard to break or cause damage. Receiver module that is defective The key fob operates by transmitting a low-frequency radio signal that is interpreted by the receiver module within your Jaguar. The receiver module receives the signal from your smart key, and then opens the door locks or disarms the security system. This module also allows you to start your car and control the audio system. The receiver module could fail if malfunctioning. Take out the 12 volt battery by disconnecting both terminals. Wait a few moments. Reconnect the battery in reverse. Interference from nearby transmitters or objects with the same frequency is another common reason for Jaguar XF keyfob not working. Interference can also block the Body Control Module (BCM) from acknowledging the key signals. You can reprogram 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 electronic, coded transponder chips. These chips detect a unique signal from the remote control, and send it to the receiver module that is in your car. If the receiver module becomes faulty, you will not be in a position to use the key fob to lock or unlock your vehicle. Fortunately, there are common causes that you can fix yourself. First, verify that the key fob's button working correctly. If not, you probably have an old button or contact. It is essential to replace the batteries in a correct manner. Be sure to use the same voltage, size and specifications as the original one. Make sure the new battery does not come into contact with water or salt. If your Jaguar key fob has a problem It is crucial to find a professional locksmith who can repair or replace it. This kind of service is expensive, but much cheaper than buying a new key fob at the dealer. If you have the right tools, you can do this yourself.