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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 keys of today aren't able to be replaced. The battery will need to be replaced if the key's range decreases and the Jaguar vehicle's message center displays the message “SMART KEY” BATTERY IS LOW. The Key Lab are becoming more and more popular with car owners, thanks to their convenience and security features. For example, some models automatically lock or unlock when you press the door handle, which is much more convenient than fumbling for 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 hijack or alter the signal. Key fobs emit radio frequency with a unique identification code that can only be recognized by the vehicle. When you hit one of the buttons on the Jaguar key fob, it transmits the code to the car computer, which then responds by unlocking the doors and starting the engine. The key fob also sends an alert to a receiver located in the trunk, which can be used to open the tailgate hands-free. However, criminals have discovered ways to evade these systems. They've been able to utilize software to decode the signals transmitted by key fobs, or remotely reprogram keys using the transponder code for your car. For this reason, experts advise adding an enclosed protection case to your key fob. These cases limit the distance at which the frequencies emitted from the fob are transmitted. They are available in most auto parts stores and cost less than $10. Remote Start You can use your Jaguar XE key fob to lock, unlock, and start your car remotely. To activate the feature you need to press and hold the lock button while securing your key fob within reach of your vehicle. Push the start button once the door handles have been unlocked. If the key fob is not able to be found, the vehicle will display the message “SMART Key Battery Low”. Most recent Jaguar models offer remote-start capability. This feature lets you start your vehicle using your smartphone. This feature is particularly helpful when you are returning to your home after a long road trip or when it's too cold turn on the heater. You'll save the environment, save fuel, and protect the environment while you're on the road. In contrast to the old keys made of metal that you can purchase from hardware stores The new smart keys come with an embedded security chip within. This security feature will prevent your car from being taken by someone else who finds and attempts to use it. This also makes it difficult for locksmiths to copy the keys, meaning you'll need to go to your dealer to purchase replacement Jaguar XF keys. Modern car owners are opting for smarter key fobs that permit the control of their vehicle through an app. These new technologies make vehicles more secure, convenient and reliable than ever. However, this added convenience comes at a price Key fobs with the latest technology need to be purchased from a dealer and programmed with your vehicle. Anti-Theft System The anti theft system is designed to stop criminals from taking 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 is to prevent relay attacks which can snoop on the signal for unlocking or starting the car if keys aren't in ignition. The system also features Guardian Mode, which reports if the vehicle is unlocked or started in a sudden manner. Jaguar recommends activating this feature during the handover process. Additionally the Jaguar XF features an immobilizer that checks to see if the key fob is used to start the engine. If the key is not being used the immobilizer will turn off the fuel pump, ignition coil, and injectors, preventing your vehicle from starting. In contrast to older cars, modern Jaguars have sophisticated security systems that require specialized tools and equipment in order to service. This includes diagnostic tools such scanners that can detect the anti-theft control module's diagnostic trouble codes, and then check the data in real-time as well as 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 by using factory software. This is the most common method to determine the condition of the anti theft system. If the technician detects an issue, they might have to replace the module. Bluetooth Bluetooth has been in use for more than a decade and has revolutionized wireless communication. The technology is everywhere, from lights to cars and smartphones. Both devices must be turned on, and positioned close to each other in order for communication to take place. You may need to go into your device's settings based on the type of device. An iOS or Android phone comes with an Bluetooth menu, while desktop computers typically have one within the Control Panel. The initial Bluetooth connection needs to be established with both devices exchanging unique addresses which are represented as Hexadecimal numbers. In contrast 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 which distinguishes it other protocols such as ZigBee or WiFi. Most Jaguar XF models offer Bluetooth connectivity as standard and it's possible to connect any compatible phone to the car using InControl. The steps for pairing your phone with the car vary depending on the manufacturer, so make sure to check the InControl manual for the exact steps. It is also possible enter a passcode in order for the connection to be completed, which will be shown on the dashboard of your vehicle's.