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How to Replace a Jaguar XF Replacement Key Fob Modern keyfobs that are high-tech cannot be replaced easily. In contrast to older keys made of metal that can be copied at any hardware store for less than $5, modern key fobs aren't easily replaced. The battery must be replaced if the key fob’s range decreases and the Jaguar vehicle’s message center displays the message “SMART KEY” Battery is low. Keyless Entry The convenience and security of keyless entry systems are gaining popularity among car buyers. For instance, certain models automatically lock or unlock when you touch the door handle, which is much easier than fumbling with keys in your purse or pocket. These systems are also more secure than standard locks, as they use rolling codes which change each time you use your key fob. This makes it more difficult for thieves to hijack or alter the signal. Key fobs emit a radio signal with a unique digital identification code that only the vehicle can recognize. When you press the button on a key fob from Jaguar, the computer in the car receives the number and responds by opening doors and starting the motor. The key fob also sends signals to a device in the trunk which can be used to open the tailgate hands-free. However, criminals have discovered ways to bypass these systems. They've been able to make use of software that can decode the signals sent by key fobs, or remotely reprogram a new key with the transponder code of your car. Many experts recommend installing a shielded case on your key fob. These cases limit the distance at which radio frequencies from the fob are transmitted. They are available in many auto parts stores and cost less than $10. Remote Start You can make use of your Jaguar XE key fob to lock, unlock, or start your car remotely. Press and hold the lock button while keeping the key fob inside the range of your car. Push the start button once the door handles have been unlocked. If the key fob cannot be found, the car will display the message “SMART KEY Battery Low”. All new Jaguar models are equipped with remote-starting capabilities. With this feature, you can turn on your vehicle's engine from the convenience of your smartphone. This is particularly helpful when you're returning home after a long journey or when it's too cold to turn on the heater. You can reduce fuel consumption while reducing pollution and protecting the environment when you're driving. Contrary to the traditional metal keys you can purchase at a hardware store the new smart keys are equipped with an integrated security chip inside. This feature safeguards your vehicle from theft in the event that someone stumbles across it and attempts to use. This also makes it difficult for locksmiths to duplicate keys, so you'll need to visit your dealer for replacement Jaguar XF keys. The days of purchasing keys for replacement at the local hardware store are slowly disappearing into the past, as modern automobile owners choose to use more sophisticated key fobs that allow you to manage your vehicle through an app. The latest technologies make the vehicles of today more convenient safe, and reliable than ever. However, this added convenience comes at a price for the latest key fobs. They need to be purchased from a dealership and then programmed with your vehicle. Anti-Theft System The anti theft system is designed to stop criminals from taking your Jaguar. It uses a unique technology known as Ultra Wideband (UWB) to detect the key fob signal and confirm that it is genuine. This prevents so-called relay attacks that can intercept the signal to unlock or start the vehicle even when the key is not in the ignition. The system comes with a Guardian Mode that reports if the vehicle is locked unexpectedly or started. Jaguar recommends activating this feature during the handover procedure. The Jaguar XF also features an immobilizer that confirms that the key 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 the vehicle from beginning. Unlike older vehicles and models, modern Jaguars are equipped with sophisticated security features that require specialized tools and equipment to service. Diagnostic tools like a scanner can be used to detect diagnostic trouble codes of the anti theft control modules and check real-time data and freeze frame. The technician will also need to physically test the voltages of analog throughout the system. This can be done by connecting a multimeter to the anti-theft control module, or using the factory software. This is usually the best method to identify the anti-theft system. If the technician finds an issue, they might have to replace the module. Bluetooth Bluetooth has been around since over 20 years, and has revolutionized wireless communication. The technology is everywhere and can be found everywhere from light bulbs to smartphones, and automobiles. To set up the Bluetooth connection between two devices, both of them need to be turned on and be within a reasonable distance for the communication to take place. jaguar xf key fob shell may need to access the settings of your device based on the model. An iOS or Android phone has a Bluetooth menu, whereas desktop computers typically have one within the Control Panel. The first Bluetooth connection is required. Both devices exchange their unique addresses (which are displayed as Hexadecimal numbers). As opposed to other RF technologies, Bluetooth is secure, with encryption and authentication to secure data transmissions. Bluetooth operates on the unlicensed ISM band and is governed by the same set of guidelines and specifications that differentiate it from other protocols such as ZigBee or WiFi. InControl allows you to pair your compatible smartphone to the majority of Jaguar XF models. This is accomplished through the phone's Bluetooth menu. The steps differ between different manufacturers, so check the InControl manual to learn what you need to do. You may also have to enter a passkey to complete the connection which will be displayed on the touchscreen of your vehicle.