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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 provides security features, such as the ability to “double lock” your vehicle, which stops thieves from breaking windows to gain access. There are a number of reasons for why the Jaguar XF keyfob may not work. There are a variety of reasons, including a dead battery, signal interference or the chip is defective. Dead coin battery Modern electronic keys provide greater convenience and security than traditional keys that are manually operated. They can be used to lock and unlock your car, turn on the lights and start the engine. They come with additional features that make driving more comfortable. However, they may lose their charge as time passes. If you've noticed that your Jaguar XF's key fob isn't functioning, it could be due to a dead battery in the coin. The good news is that replacing it is a quick and simple fix. Crofton drivers will know it's time to buy a new battery if the key fob isn't as effective at locking and unlocking from long distances, or it stops working completely. Your Jaguar InControl ®, touchscreen may display a message saying “Smart key battery is depleted”. Slide the emergency key blade out to remove the cover of the key fob. Pull the emergency key to remove any chrome bits on the side and separate the two halves of the fob for the key. Replace the old battery with a new one making sure to put it with the positive side facing upwards. Water damage If your Jaguar XF key fob has survived a bath in soapy water, or was exposed to salt water, the chip inside could be damaged. This could stop the key fob from working, causing you to need a new one from your dealer. In this instance, you should disassemble the key fob and clean the metal clips and the electronic chip with isopropyl alcohol. If the remote control still doesn't work, it might be caused by signal interference. This could be caused by nearby transmitters on the same frequency as the remote control from XF or caused by objects like buildings or trees. The remote control will continue work if you move away from the source of interference. Your Jaguar is designed to continuously monitor itself including engine performance and emissions to the brakes and lights. This means that if it begins to run low on battery power, you'll be notified by warnings. 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 your Jaguar XF keyfob battery as quick as you can to avoid any issues. Contacts for the battery that are defective Modern Jaguar key fobs are far more sophisticated than traditional mechanical keys and they offer a lot of additional functions. Like any electronic device, these can wear out over time or stop working altogether. If the lock button on your Jaguar key fob begins to malfunction, it is likely that the battery will need to be replaced. Most auto parts stores sell replacement batteries for Jaguar key fobs. However, before replacing the battery, be sure that the battery you purchase is genuine Jaguar part. This will ensure it's the right size and voltage. It is also important to handle the battery in a controlled manner since touching its outer edges could transfer skin moisture and oil which could reduce battery life and corrode the contacts. A Jaguar key fob can be used as remote control to unlock the doors of your car to activate the alarm and open the sunroof and windows. It can double-lock your car to keep it secure from thieves. The Jaguar key fob is protected by a casing made of metal, making it impossible to break or damage. Faulty receiver module The key fob emits an radio signal at a low frequency which is detected by a receiver module inside the Jaguar. This module receives the signal from your smart keys and opens the door locks, or disables the security system. The module also lets you to start your vehicle and control the audio system. If the receiver module fails and stops working, it could cause the system to stop. The battery that is 12 volts should be removed by disconnecting both terminals. Give it a few minutes. Reconnect the battery in reverse. Another reason that is commonly cited for Jaguar XF key fob not functioning is interference from other objects or transmitters operating on the same frequency. Interference can also block the Body Control Module from recognizing key signals. You can reprogram the key fob to allow it to work again by following instructions in the owner’s manual. Electronic chip that is malfunctioning Jaguar key fobs are fitted with transponder electronic, coded chips. These chips receive a distinct remote control signal and send it to your car's receiver module. If this receiver module becomes damaged, you will not be able to use the key fob to unlock or lock your car. Fortunately, there are a few common causes that you can fix yourself. Verify first that the button on the key fob is functioning. If not, it's possible that the button or contact is worn out. It is important to replace the battery correctly. Use a battery with the same size, voltage and specifications as your original. Make sure jaguar car key does not come into contact with salt or water. If your Jaguar key fob has a problem it is essential to find an experienced locksmith who can repair or replace it. This kind of service may be expensive, however it is much cheaper than buying an alternative key fob from the dealer. If you have the proper tools, you can complete this yourself.