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Vehicle Smart Key Technology The technology of smart keys in vehicles enables drivers to unlock and start their vehicle by simply rubbing the door handle, or by putting the key into the pocket. It also permits a variety of other adjustments, including seating positions and internal temperature settings, mirror positioning and stereo presets. However, this can also cause security issues. Security Smart keys are computerized key fobs which communicate with the vehicle via an embedded antenna. This allows them to unlock doors and begin the motor. Smart key fobs, unlike traditional keys that emit the same frequency each time they're pressed, transmit encrypted signals that are compatible with the car to which they belong to. This makes it much more difficult for thieves with the latest technology to impersonate or intercept the signal and use the key to steal your car. For instance, Mercedes' system -known as Keyless Go — has an internal transponder, which identifies the driver's key. The Smart Key automatically unlocks and opens the doors and the tailgate when it is within 1.5 meters. It also allows you to start the engine by pressing the key. Some smart keys, like the ones from BMW and Mercedes-Benz, also come with user-specific settings that allow the driver to adjust the seat, mirrors and steering wheel's position and audio preferences at the press of a single button. They also have the backup lock, which stops the vehicle from running without the key. This technology assists drivers from locking their car, especially when they are rummaging through their purses or backpack to find keys in a parking lot packed with strangers or on a busy street with high rates of crime. A lot of systems will also notify drivers when the key is not fully charged, however this feature is dependent on the manufacturer. Convenience The smart key is perfect for those who are on the move and need to get somewhere. You can lock, unlock and start your car by pressing the door handle or the trunk release. Popular Mechanics explains that the key fob can also be used to track charging, location, and other information about your vehicle. You shouldn't lock your keys inside the car. The key fob communicates with an antenna in the vehicle to determine whether it is within the range. If it's not, the engine won't not start. This will deter thieves from the vehicle and stealing parts of it. BMW reports that the smart key employs rolling codes to prevent hacking and cloning. A computer in the vehicle recognizes the code and validates it before starting the engine. Most systems have a mechanical back-up in the form an unnoticed key blade. How Stuff Works Electronics notes that modern smart keys also detect when the key is used and adjust the car settings in line with the use of the key. For instance, if switch on the car while holding the key fob in your hands, the windows and the sunroof are opened to let the cabin air dry. You can also set a speed limit that will only be applicable when the vehicle is started using the selected key, which could be useful when loaning your vehicle to a novice driver. 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 it simply press and hold the lock button while pressing the unlock button. This will prevent your smart key fob from transmitting or receiving any radio signals which will increase its battery's life by a significant amount. You can reactivate this feature by pressing the unlock and lock buttons once more. Certain smart keys also have anti-theft features to prevent them from being copied by thieves. Mercedes-Benz smart keys use rolling codes to prevent unauthorized access. When a smart key is inserted in the ignition, a computer within the car checks the code in milliseconds prior to even starting the engine. BMW also has smart car key reprogramming G28 Car Keys with its Display Key, which has a small LCD color touchscreen on the smart key for ease of use, and allows drivers to lock or unlock their vehicles without ever taking the key from their pockets. If you're thinking about buying a new car with a smart key, or you need the battery in your smart key fob changed, contact us at Pop-A Lock for a fast and easy service. Our mobile locksmiths will change the battery on any smart key, and will help you set it so that your car can recognize it. Special Cases Smart keys aren't 100% secure against theft, but they do assist in preventing thieves. Smart key fobs are designed to deter hackers from gaining access to the system. When they are placed in the ignition of the car the computer validates the code in milliseconds. This technology was invented by Mercedes-Benz and is now used by a number of high-end car brands. A smart key system will work even if it is not possible to remember the key in the trunk or leave it at an establishment. Certain systems will also inform the driver when the battery is depleted. Certain brands have keys with covers specifically designed for smart keys that protect the fob from damage.