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Vehicle Smart Key Technology The smart key technology in vehicles enables drivers to unlock and start their car by simply touching the door handle, or putting the key in the pocket. It also allows a variety of other adjustments, such as seating positions, internal temperature settings, stereo presets and mirror positions. This could also raise security concerns. Security Smart keys are sophisticated key fobs that are computerized and communicate with a vehicle through one of the antennas in the car to open the doors and to start the engine. Smart key fobs, in contrast to traditional keys, which emit the same frequency every time they're pressed, send encrypted signals that are only compatible with the car to which they belong. This makes it harder for thieves with advanced technology to detect or spoof the signal and use your key to steal your car. For example, Mercedes' system — called Keyless Go — has an internal transponder that identifies the key of the driver. The Smart Key automatically unlocks and opens the doors and the tailgate when it is within 1.5 meters. It also turns on the engine by pressing the key. Additionally some smart keyslike those made by BMW have their own user settings that let the driver alter the seat, mirrors, the steering wheel's position and audio preferences at the touch of the button. They also come with an emergency lock that keeps the vehicle from starting without the key in the ignition. This technology prevents drivers from locking their cars, especially when they are rummaging through their purses or backpack to locate keys in a parking space filled with strangers or on an area with high rates of crime. A lot of systems will also notify drivers when their keys are in danger of being depleted, though this feature is dependent on the manufacturer. Convenience If you're in a hurry get to a place the smart key makes getting into your vehicle as easy as possible. You can lock, unlock and start your car simply by pressing a button on the door handle or the trunk release. The key fob will connect to your phone to track charging, location and other data about the vehicle, according to Popular Mechanics. One of the biggest advantages is that you aren't able to accidentally be locked out. The key fob communicates to an antenna in the vehicle to determine if it's within the range. If it's not in range, the engine will not start. This will deter thieves from absconding with your vehicle and selling parts of it. The smart key uses rolling codes to ward off hacking attempts and cloning, says BMW. The computer in the vehicle recognizes and verifies the code prior to starting the motor. Most systems have a physical backup in the form of an invisible key blade. How Stuff Works Electronics notes that modern smart keys also detect the key being used and adjust the vehicle settings accordingly. For instance, if you switch on the car while holding the key fob in your palm, the windows and the sunroof are opened to let air circulate through the cabin. You can also set up a speed limit that will only be activated when the vehicle is powered by the chosen key. This feature could be useful if you're loaning your vehicle to a driver who is not experienced. Battery Life If you're looking for a way to get more mileage out of your vehicle's smart key, or just want to make sure it won't die during a trip to the grocery store, you can activate an auto manufacturer-specific feature called Power Saving Mode. To activate smart car key replacement cost uk , press and hold the lock button while pressing the unlock button. This will block your smart key fob from having to transmit or receive radio waves. This will significantly extend the battery's life. It is possible to reactivate the function by pressing the unlock and lock buttons again. Certain smart keys come with anti-theft features that stop them from being copied by thieves. Mercedes-Benz smart keys utilize rolling codes to prevent access by anyone who is not authorized to use it. When a smart key is inserted in the ignition, a computer in the car checks the code in milliseconds prior even starting the engine. BMW uses a Display Key that has a tiny LCD color screen. This allows drivers to lock their vehicles, unlock them, and even start them without having to remove the smart key from their pockets. Contact Pop-Alock if you need to replace the battery on your smart key fob, or should you be thinking of buying a car with a smart-key. We can replace the battery in any smart key, and our mobile locksmiths will assist you in setting it up to make sure your vehicle recognizes it. Special Cases Smart keys aren't 100 100% theft-proof, but they help deter thieves. Smart keys are designed to deter hackers from hacking into the system. When placed in the ignition of the vehicle the computer validates the code in milliseconds. This technology was developed by Mercedes-Benz and is now employed by a number of high-end car brands. Another great feature is that the majority of smart key systems will continue to work in the event that the user forgets the key in the trunk or left it in the restaurant, or lost it on hiking. Certain systems will notify the driver when the battery is running low. Certain brands provide key covers specifically designed for smart keys. They keep the key safe from harm.