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How to Replace a Jaguar XF Replacement Key Fob Keyfobs with the latest technology can't be easily replaced. In contrast to older keys made of metal which can be purchased at any hardware store for less than $5, the modern keys cannot be easily replaced. Drivers will know it's time to replace the battery when they see a decrease in the key fob's effectiveness range, as well as a “SMART KEY BATTERY LOW” message in their Jaguar vehicle's message center. Keyless Entry The convenience and security of keyless entry systems are growing in popularity with car owners. For instance, certain models automatically lock or unlock when you touch the door handle, which is much more convenient than fumbling for keys in your pocket or handbag. Additionally, these systems tend to be more secure than standard car locks because they employ rolling codes that alter each time you use the key fob. This makes it much more difficult for thieves to steal the signal or alter it. Key fobs emit a radio frequency, which has an unique digital identity code that only the vehicle is able to recognize. When you press the button on the Jaguar's key fob and the computer in the car detects the code and responds by unlocking doors and triggering the motor. The key fob can also send a signal to the trunk receiver, which can be used to open the tailgate without having to touch it. Unfortunately, thieves have discovered ways to circumvent these systems. They have been able use software that decodes the signals sent by the key fobs and even remotely reprograms keys to the car's security code. Many experts suggest installing a shielded case on your key fob. These cases limit the distance radio frequencies from the fob can travel. They are available in the majority of auto parts stores and are priced less than $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 reach of your vehicle. Push the start button once the door handles are locked. If the key fob isn't within range the car will display an “SMART KEY BATTERY LOW” message. Most new Jaguar models come with remote-start capabilities. With this feature, you can turn on your vehicle's engine from the convenience of your phone. This feature is especially useful when you're coming to your home after a long road trip or when it's too cold to turn on the heating. You'll save fuel, reduce pollution and help protect the environment while driving. These new smart keys have a built-in security chip and are not like the old keys made of steel that you purchase at hardware stores. This security feature helps protect your vehicle from being stolen should someone find it and attempts to use. This technology also makes it difficult for locksmiths to copy the keys, meaning you'll need to go to your dealer for replacement Jaguar XF keys. Modern car owners are opting for smarter keys that enable the control of their vehicle through an app. These advanced technologies make today's vehicles more convenient, robust, and secure than ever. However, that extra function is a cost: the latest key fobs should be purchased from the dealership and programmed to work with your vehicle. Anti-Theft System The anti theft system is designed to deter criminals from stealing your Jaguar. It uses a unique technology called Ultra Wideband (UWB) to detect the key fob's signal and confirm that it is genuine. This is to prevent relay attacks which could intercept the signal used for unlocking or starting the car when the key isn't in the ignition. jaguar xf key fob cover includes a Guardian Mode that reports if the vehicle is suddenly unlocked or started. Jaguar suggests activating this feature during the handover procedure. In addition to that, the Jaguar XF features an immobilizer that checks to see if the key fob is used to start the engine. The immobilizer blocks the fuel pump, ignition coil, and injectors when the key isn't in use. This stops your car from beginning. Contrary to older models and models, modern Jaguars come with sophisticated security systems that require specialized tools and equipment in order to service. Diagnostic tools like scanners are used to detect diagnostic trouble codes of the anti theft control modules and to check the real-time data as well as freeze frame. The technician will also have to physically test analog voltages throughout the system. This can be done by connecting a multimeter to the anti theft control module, or using factory software. This is the simplest method to identify an anti-theft system. If the technician finds an issue, they might have to replace the module. Bluetooth Bluetooth has been in use for more than 20 years and has revolutionized wireless communication. Bluetooth technology is everywhere, from automobiles to light bulbs and even smartphones. Both devices need to be on, and in close proximity to each other to enable communication to occur. You may have to go into your device's settings depending on the type. An iOS or Android phone comes with an Bluetooth menu, while desktop computers usually have one within the Control Panel. The first Bluetooth connection is required. Both devices will exchange their unique addresses (which are displayed as Hexadecimal numbers). Unlike other RF technologies, Bluetooth is secure, with encryption and authentication to protect data transmissions. Bluetooth operates in the unlicensed ISM frequency band, and a uniform set of specifications and rules distinguishes Bluetooth from other protocols such as ZigBee and WiFi. InControl allows you to connect an compatible smartphone to most Jaguar XF models. This is done via the phone's Bluetooth menu; the steps vary from manufacturer to manufacturer and so you must refer to the InControl manual to learn what you need to do. It is also possible to enter a passcode to connect, which will be shown on the touchscreen of your vehicle.