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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 can't be easily replaced. The battery will have to be replaced when the range of the key fob diminishes and the Jaguar vehicle's message center shows the message “SMART KEY” Battery is low. Keyless Entry The convenience and security of keyless entry systems are becoming popular among car owners. For instance, certain models automatically lock or unlock when you touch the door handle, which is much less trouble than fumbling around with keys in your bag or pocket. Additionally, jaguar key case 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 a radio frequency, which has a unique digital identity code that only the vehicle can recognize. When you press a button on a key fob from Jaguar, the computer in the car receives the code and responds by unlocking doors and starting the motor. The key fob can transmit a signal to the trunk receiver that can be used for opening the tailgate without touching it. Unfortunately, thieves have discovered ways to bypass these systems. They've managed to use software that can decode the signals sent by key fobs, or even remotely reprograms a new key to the car's number. Many experts suggest installing a shielded case on your key fob. These cases limit the distance at which frequencies that the fob emits travel, and they can be found at most auto parts stores for less than $10. Remote Start Your Jaguar XE keyfob can be used to remotely lock or unlock your vehicle. Press and hold the lock button while keeping the key fob within reach of your car. Push the start button once the door handles are unlocked. If the fob for your key cannot be accessed, the car will display the message “SMART Key Battery Low”. All new Jaguar models come with remote-starting capability. This feature lets you start your car using your smartphone. This is particularly useful if you're returning home after a long trip or when it's too cold outside to crank up the heater. You can save money on fuel, reduce pollution and protect the environment while driving. These new smart keys have a built-in security chip unlike the older metal keys you could purchase at hardware stores. This security feature will prevent your car from being stolen by anyone else who stumbles upon and tries to use it. This technology also makes it difficult for locksmiths to copy keys, so you'll need to visit your dealer for replacement Jaguar XF keys. The days of buying keys to replace your car at the local hardware store are slowly disappearing into the past as modern automobile owners are opting for more advanced key fobs that let you control your vehicle using an app. The new technology makes the vehicles of today more convenient robust, and secure than ever. However, that added functionality 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 was designed to deter criminals from getting your Jaguar. It utilizes a technology known as Ultra Wideband to detect and confirm the signal of the key fob. This stops relay attacks, which can intercept the signal for unlocking or starting the car when the key isn't inserted in the ignition. The system includes a Guardian Mode that reports if the vehicle is suddenly unlocked or started. Jaguar recommends activating this feature during the handover process. In addition the Jaguar XF features an immobilizer that verifies that the key fob is used to turn on the engine. If the key is not being used, the immobilizer will disable the fuel pump, ignition coil and injectors, which will stop the car from beginning. Contrary to older models that were built in the past, modern Jaguars are equipped with sophisticated security features that require specialized tools and equipment for servicing. This includes diagnostic tools such scanners that can detect the anti theft control module's diagnostic trouble codes, and then check real-time and freeze frame information. The technician also needs to physically test analog voltages throughout the system. This can be accomplished by connecting a multimeter to the anti theft control module or by using the factory software. This is the simplest method of diagnosing an anti-theft system. If the technician discovers an issue, they may have to replace the module. Bluetooth Bluetooth has been in use for over twenty years and has revolutionized wireless communications. This technology is everywhere from lighting bulbs to cars and smartphones. Both devices need to be turned on and placed close to each other in order for communication to take place. You may need to access the settings of your device depending on the type of device. An iOS or Android phone has an Bluetooth menu, whereas desktop computers usually have one in the Control Panel. The first Bluetooth connection is required. Both devices will exchange unique addresses (which are displayed as hexadecimal numbers). Unlike other RF technologies, Bluetooth is secure, with encryption and authentication to secure data transmissions. Bluetooth operates in the unlicensed ISM frequency band, and a uniform set of specifications and rules distinguishes it from other protocols, such as ZigBee and WiFi. InControl allows you to connect your compatible smartphone to the majority of Jaguar XF models. This is done through the phone's Bluetooth menu; the steps differ between different manufacturers and therefore, you should consult the InControl manual to know exactly what you need to do. It is also possible enter a passcode to complete the connection, which will be shown on your vehicle's touchscreen.