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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 such as the capability to “double lock” your vehicle, preventing thieves from breaking windows to gain access. However, there are many reasons for why your Jaguar XF key fob might not work. Some of these include a dead battery, signal interference, and a defective chip. Dead coin battery Modern electronic key fobs provide more convenience and security than traditional keys. They can lock and unlock the vehicle, turn on the lights and start the engine. They also have features that make driving more comfortable. However, they could lose their charge over time. If you have noticed that the key fob of your Jaguar XF isn't working, it could be due to a dead coin battery. The good news is that replacing it is a quick and simple fix. Crofton drivers will know it's time for a new battery if the key fob doesn't seem to be as efficient at locking and unlocking over long distances or stops working altogether. You may also see an alert on your Jaguar InControl ® touchscreen interface saying “Smart key battery low”. To replace the battery to replace the battery, slide the emergency key blade to take off the cover of the fob. Then pull the emergency key to take out the chrome side bits and separate from the key fob's body. Replace the old battery by a new one making sure that you place it with the positive side facing upwards. Water damage The chip in the Jaguar XF's key fob could be damaged if was exposed to salt water or has survived the effects of a soapy bath. This could stop the key fob from functioning, causing you to need an upgrade from your dealer. In this situation, you should disassemble the key fob and clean the metal retaining clips and the electronic chip with isopropyl alcohol. Signal interference could be the reason of a remote which isn't working. This can be caused by nearby transmitters using the same frequency as the remote control of your XF, or by objects like buildings or trees. If you leave, the remote control should still work. how to start jaguar xf without smart key is built to ensure that it continuously monitors itself all the way from engine's performance to emissions to brakes and lights. You'll get a notification if the battery is running low. The key fob will be unable to function and you'll get an error message that reads “SMART Key LOW BATTERY”. It is essential to replace the battery of your Jaguar XF keyfob battery as quick as you can to avoid any issues. Contacts of the battery may be damaged. Jaguar key fobs come with many more features than traditional mechanical keys. They also are more sophisticated. Like any electronic device these can wear out over time or stop working altogether. The battery could need to be replaced in the event that the lock button on the Jaguar key fob begins to fail. Most auto parts stores sell replacement batteries for Jaguar key fobs. But before you replace the battery, ensure that the replacement is a genuine Jaguar part. This will ensure that it is of the correct size and voltage. It is also essential to handle the battery with care because touching its outer edges could transfer oil and moisture from the skin which could reduce battery life and also 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 to keep it safe from thieves. The Jaguar key fob is protected by a casing made of metal, making it difficult to break or scratch. Receiver module that is defective The key fob transmits an audio signal at a low frequency that is interpreted by a receiver module in the 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 cease to function if it's faulty. Remove the battery of 12 volts by disconnecting both terminals. Give it a few minutes. Then reconnect the battery in reverse order. Interference from nearby objects or transmitters using the same frequency is another reason that can be a cause 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. A malfunctioning electronic chip Jaguar key fobs are equipped with digital, coded transponder chips. These chips receive a unique signal from the remote control and transmit it to the receiver module within your vehicle. If the receiver module is defective this will prevent you from using your key fob to lock or unlock your vehicle. Fortunately, there are common causes of this problem that you can fix yourself. First, make sure that the button on the key fob works. If not, it's a sign that the button or contact is damaged. It is important to replace the batteries in a correct manner. Make sure you choose a battery that is the same voltage, size, and specification as the original. Make sure the new battery doesn't come into contact with water or salt. It is important to find a skilled locksmith that is able to repair or replacing your Jaguar key fob. This type of service is expensive, but cheaper than purchasing an alternative key fob from the dealer. You can even do this task yourself if you have the appropriate equipment.