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How to Replace a Jaguar XF Replacement Key Fob Contrary to older keys made of metal that can be copied for less than $5 at any hardware store Key fobs of today aren't able to be replaced. The battery must be replaced when the range of the key fob diminishes and the Jaguar vehicle’s message center displays the message “SMART KEY” The battery is low. Keyless Entry Keyless entry systems are becoming more and more popular with car owners, thanks to their convenience and security features. For example, some models automatically lock or unlock after you touch the door handle, which is much less trouble than fumbling around with keys in your pocket or handbag. In addition, these locks tend to be more secure than standard car locks due to the fact that they utilize rolling codes that change every time you use the key fob. This makes it harder for thieves to sabotage the signal or to spoof it. Key fobs emit radio frequencies with a unique, digital identification code that is only recognized by the vehicle. When you hit one of the buttons on a Jaguar key fob, it relays this code to the car's computer, which responds by unlocking the doors as well as starting the engine. The key fob also sends signals to a receiver in the trunk that can be used to open the tailgate hands-free. However, criminals are finding ways around these systems. They've been able to use software that can decode the signals sent by key fobs, and even remotely reprogram keys using the transponder codes of the car. To prevent this, many experts suggest adding an enclosed protection case to your key fob. These cases limit the distance that frequencies generated by the fob could travel, and they can be found at most auto parts stores for under $10. Remote Start You can use your Jaguar XE key fob to lock, unlock, or start your vehicle remotely. To activate the feature you need to press and hold the lock button while holding the key fob within range of your vehicle. Once the door handles are not locked, press the start button to begin your engine. If the key fob cannot be found, the car will display the message “SMART Key Battery Low”. All new Jaguar models come with remote-starting capability. With this feature, you can activate the engine of your vehicle from the comfort of your phone. This is particularly useful if you're returning to your home after a long drive or when it's too cold to turn up the heat. You can save money on fuel, reduce pollution and protect the environment while driving. As opposed to the old metal keys you can purchase at a hardware store The new smart keys contain a security chip that is integrated into. This security feature helps protect your vehicle from being stolen if someone finds it and attempts to use. This technology makes it difficult for locksmiths and car thieves to duplicate keys. You'll have to visit your dealer to obtain a replacement Jaguar XF key. Modern automobile owners are opting for smarter key fobs that enable the control of their vehicle through an app. The latest technologies make vehicles more secure, easy to use and reliable than ever. However, that extra function comes at a cost: the latest key fobs need to be purchased from a dealership and then programmed with your vehicle. Anti-Theft System The anti theft system has been designed to deter criminals from taking your Jaguar. It uses a technology called Ultra Wideband to detect and verify the signal of the key fob. This is to prevent relay attacks which can intercept the signal for unlocking or starting the car if the key isn't in ignition. The system comes with a Guardian Mode that reports if a vehicle is unlocked unexpectedly or started. Jaguar suggests activating this feature as part of the handover process. jaguar xf spare key TheKeyLab features an immobilizer that ensures that the key is being used to start the engine. The immobilizer blocks the ignition coil, and injectors when the key isn't used. This stops the vehicle from starting. As opposed to older vehicles and vehicles, modern Jaguars have sophisticated security systems that require special tools and equipment for servicing. This includes diagnostic tools such a scanner that can read the anti theft control module's diagnostic trouble codes and check the freeze and real-time data. The technician must test the analog voltages throughout the entire system. This can be done by connecting a multimeter to the anti-theft module or using the factory software. This is the simplest method of diagnosing an anti-theft system. If the technician discovers an issue, they might need to replace the device. Bluetooth Bluetooth has been in use for over 20 years, and has revolutionized wireless communication. This technology is ubiquitous and is present in everything from light bulbs to smartphones, and cars. To establish a Bluetooth connection between two devices, both have to have it turned on and be in close proximity for the connection to occur. You may have to access the settings of your device based on the model: an iOS or Android phone will include an Bluetooth menu and a desktop computer will typically have one in the Control Panel or System Preferences. The initial Bluetooth connection will need to be established, with the two devices exchanging unique addresses, which are displayed as the hexadecimal value. In contrast to other RF technologies, Bluetooth is secure, with encryption and authentication to safeguard data transmissions. It operates in the unlicensed ISM frequency band, and a standard set of rules and specifications distinguishes Bluetooth from other protocols such as ZigBee and WiFi. InControl allows you to pair a compatible smartphone with most Jaguar XF models. This is done using the smartphone's Bluetooth menu. The steps differ from one manufacturer to the next and so you must refer to the InControl manual to see exactly how to accomplish it. You may also need to enter a passcode to complete the connection which will be displayed on the touchscreen of your vehicle.