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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 Today's modern key fobs can't be easily replaced. The battery will have to be replaced when the range of the key fob decreases and the Jaguar vehicle's message center displays the message “SMART KEY” The battery is low. Keyless Entry The convenience and security of keyless entry systems are growing in popularity with car owners. For example, some models automatically lock or unlock when you press the door handle, which is simpler than having to search for keys in your pocket or handbag. These systems are more secure than standard locks as they use rolling codes which change every time you use your key fob. This makes it difficult for thieves to sabotage the signal or spoof it. Key fobs emit radio frequencies with a unique identification code that can only be recognized by the vehicle. When you press the button on a key fob from Jaguar, the computer in the car receives the number and responds by unlocking doors and starting the motor. The key fob also sends an alert to a receiver in the trunk that can be used to open the tailgate without hands. However, additional resources have discovered ways to get around these systems. They've been able to use software that can decode the signals generated by the key fobs, or even remotely reprograms a key to the car's number. Many experts recommend the use of a shielded case for your key fob. These cases limit the distance the frequencies emitted from the fob can be transmitted. They are available at many auto parts stores and cost less than $10. Remote Start Your Jaguar XE keyfob can be used to remotely lock or unlock your vehicle. To activate the feature just press and hold down the lock button while keeping the key fob within range of your vehicle. When the door handles are locked, press the start button to start your engine. If the key fob isn't within range the car will display a “SMART KEY BATTERY LOW” message. All new Jaguar models come with remote-starting capabilities. With this feature, you are able to start the engine of your vehicle from the comfort of your phone. This is especially useful when you're returning home after a long journey or when it's too cold outside to crank up the heater. You'll be able to save the environment, save fuel and safeguard the environment while traveling. These new smart keys have built-in security chips, unlike the old metal keys that you can purchase at hardware stores. This security feature helps protect your vehicle from being taken by a person who finds and attempts to use it. This also makes it difficult for locksmiths to copy keys, so you'll have to go to your dealer for replacement Jaguar XF keys. The days of purchasing keys to replace your car at your local hardware store are slowly disappearing into the past as modern car owners prefer smarter key fobs that allow you to manage your car using an app. These new technologies make vehicles more secure, convenient and more efficient than ever. However, that added functionality is a cost that is why the most recent key fobs should be purchased from the dealership and then programmed with your vehicle. Anti-Theft System The anti-theft system was created to deter criminals from taking Jaguars. It utilizes a technology known as Ultra Wideband to detect and verify the key fob's signal. This prevents relay attacks, which can intercept the signal used for unlocking or starting the car even if the key isn't in the ignition. The system also features Guardian Mode, which reports if the vehicle is unlocked or started in a sudden manner. Jaguar suggests that you turn on this feature during the handover process. In addition, the Jaguar XF features an immobilizer that ensures that the key fob is being used to start the engine. If the key is not being used the immobilizer will turn off the ignition coil and injectors, which will stop your car from getting started. Modern Jaguars in contrast to older vehicles have advanced security systems which require special equipment and tools to service. Diagnostic tools, such as a scanner can be used to identify the diagnostic trouble codes of anti theft control modules and to check the real-time data as well as freeze frame. The technician will need to check the voltages of analog in the entire system. This can be done by connecting a multimeter with the anti-theft control system or by using the factory software. This is the most commonly used method to identify an anti-theft system. If the technician finds a problem, they may need to replace the device. Bluetooth Bluetooth has been in use for more than a decade and has revolutionized wireless communication. The technology is everywhere, appearing in everything from light bulbs to smartphones, and automobiles. To establish a Bluetooth connection between two devices, both of them need to have it turned on and be close enough for the communication to occur. You may have to access the settings of your device, based on the model. An iOS or Android phone will come with a Bluetooth menu and a desktop computer will usually have a Bluetooth menu in the Control Panel or the System Preferences. The first Bluetooth connection is required. Both devices will exchange unique addresses (which are displayed as hexadecimal numbers). In contrast to 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 guidelines and specifications distinguishes Bluetooth from other protocols like ZigBee and WiFi. The majority of Jaguar XF models offer Bluetooth connectivity by default and you can connect an compatible smartphone to the car using InControl. The steps for pairing your phone with the car differ based on the manufacturer, so make sure you read the InControl manual for the exact instructions. You may also have enter a passcode in order to complete the connection, which will be displayed on your vehicle's touchscreen.