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How to Replace a Jaguar XF Replacement Key Fob The high-tech keyfobs of today aren't easily replaced. Contrary to the older metal keys, which can be copied at any hardware store for less than $5, modern key fobs aren't easily replaced. The battery will need to be replaced if the range of the key fob decreases and the Jaguar vehicle's message center displays the message “SMART KEY” BATTERY IS LOW. Keyless Entry Keyless entry systems are becoming more and more popular with car owners due to their convenience and security features. For instance, certain models automatically lock or unlock when you touch the door handle, which is much simpler than having to search for keys in your purse or pocket. In addition, these locks tend to be more secure than standard car locks since they employ rolling codes that change each time you use the key fob. This makes it difficult for thieves to sabotage the signal or even spoof it. Key fobs emit radio frequency with a unique identification code that can only be recognized by the vehicle. When you press a button on the Jaguar's key fob the computer inside the car receives the number and responds by unlocking doors and triggering the motor. Key fobs can also transmit a signal to the trunk receiver that can be used for opening the tailgate without touching it. Unfortunately, thieves are finding ways to circumvent these systems. They've been able to use software that can decode the signals sent by the key fobs or even remotely reprograms a new key to the car's security code. In this regard, many experts recommend adding an enclosure that is shielded to protect your key fob. These cases limit the distance that the frequencies generated by the fob are transmitted. They can be found in many auto parts stores and cost less than $10. Remote Start You can utilize your Jaguar XE key fob to lock, unlock and start your vehicle remotely. To activate the feature simply press and hold the lock button while holding the key fob within range of your vehicle. Press the start button after the door handles are unlocked. If jaguar xf key cover g28carkeys.co.uk fob isn't in range the car will display an “SMART KEY BATTERY LOW” message. The majority of the latest Jaguar models are equipped with remote-start technology. With this feature, you are able to start your vehicle's engine using the convenience of your phone. This feature is particularly helpful in the event that you're returning home from a long drive or it's too cold to turn on the heating. You'll save fuel, prevent pollution and safeguard the environment while you're driving. These new smart keys have integrated security chips and are not like the old metal keys you could purchase at hardware stores. This security feature prevents your car from being taken by a person who finds and attempts to use it. This technology makes it hard for locksmiths and car thieves to duplicate these keys. You'll need to go to your dealer to purchase a replacement Jaguar XF key. Modern car owners are opting for smarter key fobs, which enable them to control their vehicle through an app. These advanced technologies make cars more secure, easy to use and efficient than ever. However, this added convenience comes at a cost for the latest key fobs. They should be purchased from the dealer and programmed with your vehicle. Anti-Theft System The anti-theft system is designed to deter criminals from theft of your Jaguar. It makes use of a technology known as Ultra Wideband to detect and verify the key fob's signal. This prevents so-called relay attacks, which can intercept the signal to unlock or start the car even when the key isn't in the ignition. The system also has a Guardian Mode that reports if the vehicle is not locked or started. Jaguar recommends that you activate this feature during the handover process. The Jaguar XF also features an immobilizer that confirms that the key is being used to start the engine. If the key isn't being used, the immobilizer will disable the ignition coil and injectors. This will prevent your car from beginning. Contrary to older models and models, modern Jaguars have sophisticated security systems that require specialized tools and equipment for servicing. This includes diagnostic tools, such as scanners that read the anti-theft control module's diagnostic trouble codes and verify real-time and freeze frame information. Technicians will need to test analog voltages in the entire system. This can be done by connecting a multimeter with the anti-theft module or using the factory software. This is the most common way to diagnose an anti-theft system. If the technician spots an issue, they might need to replace the system. Bluetooth Bluetooth has been in use for more than 20 years and has revolutionized wireless communication. Bluetooth technology is everywhere, from lights to cars and smartphones. To set up a Bluetooth connection between two devices, both need to have it turned on and close enough for the connection to occur. You may need to go into the device's settings, depending on the model: an iOS or Android phone will include an Bluetooth menu while a desktop computer will usually have one in the Control Panel or the System Preferences. The initial Bluetooth connection will have to be paired with both devices exchanging their unique addresses, which are presented as the hexadecimal value. In contrast to other RF technologies, Bluetooth is secure, with encryption and authentication to secure data transmissions. It operates on the unlicensed ISM band and is governed by the same set of rules and specifications that distinguishes it from other protocols such as ZigBee or WiFi. InControl allows you to pair an compatible smartphone to most Jaguar XF models. This is done via the phone's Bluetooth menu. The steps differ between different manufacturers and so you must refer to the InControl manual to know exactly what you need to do. You may have to enter a passkey which is displayed on the screen of your vehicle, in order to complete the connection.