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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 comes with security features, like the ability “double lock” the vehicle to stop thieves from breaking into your windows to gain access. There are many reasons for why your Jaguar XF key fob might not function. It could be due to a dead or defective coin battery, signal interference and a defective electronic chip. activity key jaguar g28carkeys.co.uk offer greater convenience and security than manual keys. They can be used to lock and unlock the vehicle, turn on the lights and even start the motor. They also come with features that make driving more comfortable. However, they can 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 coin battery. It is easy to replace. Crofton drivers will be aware that it's time to get replacement batteries when the key fob isn't as efficient at locking and unlocking over long distances or stops working altogether. Your Jaguar InControl ®, touchscreen interface could display a message stating “Smart key battery is depleted”. To replace the battery take the emergency key blade to remove the fob cover. Then pull the emergency key to release the chrome side bits, and then break the two pieces of 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 survived a bath in soapy water, or has been exposed to salt water, the chip inside could be damaged. This can stop the key fob from functioning, causing you to need a new one from your dealer. In this instance, you must disassemble your key fob and clean the metal retaining clip and the chip using isopropyl ethanol. Signal interference could be the reason of a remote which isn't working. This can be caused by nearby transmitters operating on the exact frequency as your XF's remote control or caused by objects such as trees or buildings. If you move, the remote control should still work. Your Jaguar is designed to ensure that it monitors itself continuously in all aspects, from engine's performance through emissions to brakes and lights. This means that when it begins to lose battery power, you'll be notified by warnings. One of them will be an increase in the range of your key fob, and another one will be a message that reads “SMART Key Battery Low.” You'll need to replace the Jaguar XF key fob battery in the earliest time possible to avoid these problems. Contacts to the battery are not working properly. Modern Jaguar key fobs are far more sophisticated than traditional mechanical keys, and they offer a lot of additional functions. However, like any other electronic device, they can eventually get worn out or cease to function completely. If the lock button on your Jaguar key fob begins to malfunction, it is likely that the battery will need to be replaced. You can buy replacement batteries for your Jaguar key fob at a variety of auto parts stores. Before replacing the battery, be sure that the new one is genuine Jaguar part. This will ensure it is the correct size and voltage. Handling the battery with care is essential, since skin moisture and oil may be transferred to the outer edges, which can reduce battery life and damaging the contacts. A Jaguar key fob can be used as an remote control that allows you to unlock the doors of your vehicle, activate the alarm and open the sunroof as well as windows. It can double lock your vehicle to keep it secure from thieves. The Jaguar key fob has an aluminum casing that is difficult to break or cause damage. Receiver module that is defective The key fob works by transmitting a low-frequency radio signal which is detected by the receiver module of your Jaguar. The receiver module receives the signal from your smart key and activates the door locks, or disarms the security system. It also enables you to start your car and manage the audio system. If the receiver module is damaged and is not working properly, it will stop working. To resolve the problem remove the 12 volt battery by disconnecting it from both terminals and waiting for a few minutes. Reconnect the battery in reverse. Another reason for Jaguar XF key fob not working is interference from nearby objects or transmitters on the same frequency. Interference can also hinder the Body Control Module (BCM) from being able to recognize the key signals. The key fob can be programmed to work once more by following the instructions in the owner's manual. Electronic chip that is malfunctioning Jaguar key fobs come with electronic transponder chips which are programmed. The chips receive a specific remote control signal and send it to the car's receiver module. If this receiver module becomes damaged, you will not be allowed to use your key fob to lock or unlock your vehicle. Fortunately, there are common causes of this problem that you can fix yourself. First, check whether the key fob's button is working correctly. If it is not, you may have worn out the button or contact. It is also important to replace the battery properly. Make sure you choose one that has identical in size, voltage, and specification as the original one. Also, ensure that the new battery isn't exposed to water or salt. If your Jaguar key fob is damaged it is vital to find a professional locksmith who can fix or replace it. This kind of service may be expensive, but far less expensive than purchasing the replacement key fob from the dealer. You can do this job yourself if the right equipment.