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How to Replace a Jaguar XF Replacement Key Fob Unlike older metal keys that can be copied for less than $5 at any hardware store Today's modern key fobs can't be easily replaced. The battery will need to be replaced when the key's range decreases and the Jaguar vehicle’s message center displays the message “SMART KEY” BATTERY LOW. Keyless Entry The convenience and security of keyless entry systems are increasing in popularity with car buyers. For example, some models automatically lock or unlock when you touch the door handle, which is less trouble than fumbling around with keys in your purse or pocket. In addition, these locks tend to be more secure than standard car locks because they employ rolling codes that change every time you use the key fob. jaguar key fobs makes it more difficult for thieves to steal the signal or to spoof it. Key fobs emit a radio frequency with an unique digital identity code that only the vehicle is able to recognize. When you press the button on a key fob from Jaguar, the computer in the car receives the code and responds by opening doors and triggering the motor. The key fob also transmits a signal to a receiver located in the trunk, which can be used to open the tailgate without hands. Unfortunately, thieves have found ways to bypass these systems. They've been able employ software that decodes the signals sent by key fobs, and even remotely reprogram a key using the transponder code of your car. For this reason, many experts recommend adding a shielded protection case to your key fob. These cases limit the distance at which frequencies generated by the fob could travel. They are readily available at many auto parts stores for under $10. Remote Start Your Jaguar XE keyfob can be used to remotely lock and unlock your vehicle. Press and hold the lock button while keeping the key fob within range of your vehicle. Press the start button after the door handles have been locked. If the key fob isn't in range the car will display an “SMART KEY BATTERY LOW” message. All new Jaguar models are equipped with remote-starting capabilities. With this feature, you can start your vehicle's engine from the convenience of your smartphone. This is especially helpful if you're returning home after a long drive or when it's cold outside to turn on the heating. You can save money on fuel and reduce pollution, as well as protect the environment while driving. In contrast to the old keys made of metal you can purchase from a hardware store, these new smart keys have an integrated security chip. This security feature protects your vehicle from being stolen in the event that someone stumbles across it and attempts to use. This technology also makes it difficult for locksmiths to copy the keys, meaning you'll need to visit your dealer for replacement Jaguar XF keys. Modern car owners are opting for more sophisticated key fobs, which permit the vehicle to be controlled through an app. The latest technologies make today's vehicles more convenient, safe, and reliable than ever. This extra functionality comes at costs. The latest key fobs can only be purchased from dealers and need to be programmed in your vehicle. Anti-Theft System The anti-theft system has been designed to deter criminals from stealing Jaguars. It uses a technology called Ultra Wideband to detect and verify the signal of the key fob. This is to prevent relay attacks which could intercept the signal used for unlocking or starting the car even if the key isn't in ignition. The system also includes Guardian Mode, which reports when the vehicle is not locked or started in a sudden manner. Jaguar recommends that you activate this feature during the handover process. Additionally to that, the Jaguar XF features an immobilizer that checks to see if the key fob is used to start the engine. The immobilizer disables the fuel pump, ignition coil, and injectors when the key isn't in use. This stops your vehicle from starting. Modern Jaguars like older models are equipped with advanced security features which require special equipment and tools to service. Diagnostic tools such as a scanner can be used to identify the diagnostic trouble codes of the anti theft control modules and verify real-time information and freeze frame. The technician will need to check the voltages of analog in the entire system. You can do this by connecting a multimeter with the anti-theft control system or by using the factory software. This is usually the best method to determine the condition of the anti-theft system. If the technician discovers problems, they may need to replace the device. Bluetooth Bluetooth has been in use for over 20 years, and has revolutionized wireless communication. The technology is everywhere, from lights to cars and even smartphones. Both devices must be powered on, and in close proximity to each other in order for communication to take place. You may need to access the settings of the device, based on the model. An iOS or Android phone will have an Bluetooth menu; a desktop computer will usually have one within the Control Panel or the System Preferences. The initial Bluetooth connection must be paired with both devices exchanging unique addresses, which are represented as numbers in hexadecimal format. As opposed to other RF technologies, Bluetooth is secure, with encryption and authentication to secure data transmissions. It operates on the unlicensed ISM band and comes with a standard set of rules and specifications that differentiate it from other protocols such as ZigBee or WiFi. The majority of Jaguar XF models offer Bluetooth connectivity by default and you can connect a compatible phone with the car through InControl. The steps to pair your phone to the car will vary based on the manufacturer, so make sure to refer to the InControl manual for the precise instructions. It is possible that you will need to enter a passkey, which will be displayed on the screen of your vehicle, to complete the connection.