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How to Replace a Jaguar XF Replacement Key Fob In contrast to the older metal keys that can be copied for less than $5 at any hardware store Key fobs of today aren't able to be replaced. The battery needs to be replaced when the range of the key fob 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 is becoming popular among car owners. Some models lock or unlock the door when you touch it, which is much easier than searching for keys in your pocket. In addition, these locks tend to be more secure than standard car locks as they employ rolling codes that alter each time you use the key fob. This makes it harder for thieves to sabotage the signal or alter it. Key fobs emit a radio frequency that has an unique digital identity code that only the vehicle is able to recognize. When you press one of the buttons on a Jaguar key fob, it sends this code to the car computer, which then responds by unlocking the doors and then starting the engine. jaguar car keys can transmit a signal to the trunk receiver that can be used for opening the tailgate, without having to touch it. However, criminals have discovered ways to get around these systems. They've been able to utilize software to decode the signals sent by key fobs or remotely reprogram a key using the transponder code of your car. For this reason, many experts recommend putting the shielded protection case your key fob. These cases limit the distance that frequencies that the fob emits travel, and they are available at a majority of auto parts stores for under $10. Remote Start Your Jaguar XE keyfob can be used to remotely lock or unlock your vehicle. Press and hold the lock button while holding the key fob within reach of your car. After the door handles have been unlocked, push the start button to start your engine. If the fob for your key cannot be found, the vehicle will display the message “SMART KEY Battery Low”. All new Jaguar models come with remote-starting capabilities. This feature lets you start your vehicle using your smartphone. This feature is especially helpful when you are returning home from a long drive or when it's too cold to turn on the heating. You'll save fuel, prevent pollution, and protect the environment while you're on the road. Unlike the old metal keys you can buy at a hardware store the new smart keys contain an integrated security chip. This security feature helps protect your car from being stolen by someone else who finds and attempts to use it. This also makes it difficult for locksmiths to copy keys, which is why you'll have to visit your dealer to purchase replacement Jaguar XF keys. The days of getting keys to replace your car at your local hardware store are disappearing into the past as modern car owners prefer smarter key fobs that let you control your vehicle using an app. These new technologies make vehicles more secure, convenient, and capable than ever. This added functionality comes with a price. The most recent key fobs are available only at dealerships and are required to be programmed within your vehicle. Anti-Theft System The anti-theft system is designed to deter criminals from getting your Jaguar. It utilizes a unique technology known as Ultra Wideband (UWB) to detect the key fob's signal and confirm that it is genuine. This prevents so-called relay attacks that can take advantage of the signal to unlock or start the car when the key isn't in the ignition. The system also comes with Guardian Mode, which reports when the vehicle is not locked or started unexpectedly. Jaguar suggests activating this feature during the handover process. In addition the Jaguar XF features an immobilizer that verifies that the key fob is being used to turn on the engine. The immobilizer disables the fuel pump, ignition coil, and injectors when the key isn't being used. This prevents your vehicle from being able to start. Modern Jaguars unlike older vehicles are equipped with sophisticated security systems which require special equipment and tools to service. This includes diagnostic tools such scanners that read the anti-theft control module's diagnostic trouble codes and verify the freeze and real-time data. The technician will also have to physically test the voltages of analog throughout the system. This can be done by connecting a multimeter with the anti-theft module or by using the factory software. This is the most common method of identifying an anti-theft system. If the technician finds an issue, they could have to replace the module. Bluetooth Bluetooth has been around since over 20 years, and has revolutionized wireless communication. This technology is widely used appearing in everything from lighting bulbs to smartphones and automobiles. To set up a Bluetooth connection between two devices, both of them need to have it turned on and close enough for the connection to occur. You may need to go into your device's settings depending on the type of device. A iOS or Android phone comes with an Bluetooth menu, whereas desktop computers typically have one in the Control Panel. The initial Bluetooth connection will have to be established with the two devices exchanging their unique addresses which are presented as Hexadecimal numbers. Contrary to other RF technologies, Bluetooth is secure, with encryption and authentication to safeguard data transmissions. It operates on the unlicensed ISM band and comes with an established set of rules and specifications that differentiate it from other protocols like ZigBee or WiFi. InControl allows you to pair an compatible smartphone to 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 find out exactly the procedure to follow. You may also have enter a passcode in order to connect, which will be shown on the touchscreen of your vehicle.