2+1Buttons 164-R8163 315MHz Smart Key for 2017 2018 Ford Fusion

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Introduction to 3C digital key specifications:
After successfully completing the owner's pairing, the owner should perform the minimum safety ranging process (UWB's work content) every time the car owner is carrying the device near the vehicle APPROACH to establish a safe ranging before starting the Approach, such as welcome, LOCK, UNLOCK functions. Once the safety ranging and localization of the equipment are established, the vehicle can start the above operations according to its strategy or request. URSK (UWB ranging key) is required before establishing a safe ranging. Vehicles can have a pre-derived Ursk or a new Ursk as needed. The confidentiality and integrity of Ursk should be protected throughout the life cycle of Ursk.