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Vehicle Smart Key Technology Vehicle smart key technology allows a driver to unlock and start the car simply by touching the door handle or placing the key in the pocket. It also permits a variety of other adjustments, like seating positions as well as internal temperature settings stereo presets, and mirror positioning. However, this could lead to security concerns. Security Smart keys are key fobs that are computerized which communicate with the vehicle via an embedded antenna. This allows them to unlock doors and activate the motor. Unlike conventional keys, which emit the same frequency signal each time they are pressed, smart key fobs transmit encrypted signals that only match the car they belong to. This makes it more difficult for thieves with the latest technology to steal or spoof the signal and use the key to steal your car. For example, Mercedes' system -known as Keyless Go — has an internal transponder that identifies the key of the driver. When the Smart Key comes within 1.5 meters of a vehicle it will automatically unlock the tailgate and door, and the engine starts when a button on the key is hit. Additionally, some smart keys — like those from BMW have their own user settings that let the driver adjust the seat, mirrors and the position of the steering wheel as well as audio preferences at the click of one button. They also come with the backup lock, which stops the vehicle from running without the key. This technology prevents drivers from locking their cars, particularly when searching through a purse or backpack to locate keys in a parking area packed with strangers or on a busy street with high crime rates. Many systems will also inform motorists when the battery for their key is not fully charged, though this feature varies by the manufacturer. Convenience If you're in a hurry to get to a place, the smart key makes getting into your vehicle as simple as it can be. By pressing the button on your trunk release or door handle, you can lock, unlock and start your vehicle. The key fob will communicate with your smartphone to keep track of charging and location as well as other information about the vehicle, says Popular Mechanics. The main benefit is that you won't accidentally be locked out. The key fob is connected to an antenna in the vehicle to determine if it is within the range. If not, the engine will not start. This will stop thieves from taking your vehicle and then selling parts of it. The smart key also uses rolling codes to prevent hacking attempts and cloning, according to BMW. The computer inside the vehicle recognizes and verifies the code prior to launching the motor. Many systems also have a backup mechanical system that is a key blade that's hidden for styling purposes. How Stuff Works Electronics notes that modern smart keys can be able to detect keys used and adjust the car settings according to the situation. If you switch on the vehicle while holding the key in your hand for instance, the windows and the sunroof can be opened to allow fresh air to enter the interior. You can also set the speed limit to only be used when the car is powered by the chosen key. This feature is useful if you are lending your vehicle to a person 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 do this, hold down the lock button and press the unlock button. This will prevent your smart key fob from having to transmit or receive radio waves. This will significantly extend its battery life. You can always activate the function by pressing the lock and unlock buttons again. Some smart keys include anti-theft functions that prevent them being stolen by thieves. Mercedes-Benz smart key uses rolling codes to prevent unauthorised access. When a smart key is inserted into ignition, a computer within the car confirms the code in milliseconds, before it starts the engine. BMW has a similar system with its Display Key, which includes an LCD touchscreen on the smart key to make it easier and allows drivers to lock or unlock their vehicles without ever taking it from their pockets. Contact us at Pop-A Lock if you require to replace the battery in your smart key fob should you be thinking of purchasing a vehicle with a smart-key. We can replace the battery on any smart key, and our mobile locksmiths are able to help you set it up to make sure your vehicle recognizes it. Special Cases Although smart keys aren't theft-proof, they do help to deter thieves. Smart keys employ rolling security codes to avoid hacking, and when placed in the ignition, the vehicle's computer validates the code within milliseconds. This technology was developed by Mercedes-Benz and is currently used by a variety of luxury car brands. G28CarKeys will work even if you don't remember the key in your trunk or leave it at a restaurant. Certain systems will notify the driver when the battery is low. Certain brands have key covers designed specifically for smart keys to protect the fob from damage.