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Vehicle Smart Key Technology Smart keys in vehicles allow the driver to unlock and start the car by grabbing the door handle or putting the key in the pocket. It also permits a variety of other adjustments, including seat position the internal temperature setting and mirror positioning. This can also lead to security concerns. Security Smart keys are computerized key fobs which communicate with the vehicle via an embedded antenna to unlock doors and activate the motor. Unlike conventional keys, which emit the identical frequency signal each time they are activated, smart keys transmit encrypted signals that are only compatible with the specific car they belong to. This makes it harder for thieves with the latest technology to impersonate or intercept the signal and use the key to steal your car. Mercedes' Keyless Go system For instance, it has an internal transponder that can identify the key of the driver. The Smart Key automatically unlocks and opens the doors and tailgate when it is within 1.5 meters. It also turns on the engine by pressing a button on its key. Additionally certain smart keyssuch as those from BMW come with individual user settings that let the driver adjust seat, mirrors and the steering wheel's position as well as audio preferences at the push of one button. They also have a backup lock that blocks the vehicle from running without the key. This technology stops drivers from getting their car locked accidentally especially when looking in a purse or a backpack for keys on parking lots with strangers, or on a street where crime is high. Many systems will also inform drivers when the battery in their keys is low, though this feature can vary by manufacturer. Convenience The smart key is perfect for those who are in a rush to get somewhere. You can unlock, lock and start your car simply by pressing the door handle or trunk release. Popular Mechanics explains that the key fob can be used to track charging location, charging status, and other information about your vehicle. A big benefit is that you aren't able to accidentally get locked out. smart roadster key programming with an antenna in the vehicle to determine if it is within range. If it's not, the engine will not start. This will deter thieves from absconding with your vehicle and selling its parts. The smart key also employs rolling codes to protect against hacking attempts as well as cloning, according BMW. The vehicle's computer can recognize and verify the code prior to starting the motor. A majority of systems also have a mechanical backup that is a key blade that's hidden for styling purposes. How Stuff Works Electronics notes that modern smart keys can also detect the keys used and adjust the car settings according to the situation. For instance, if switch on the car while holding the key fob in the palm of your hand the windows and sunroof can be opened to let the air in the cabin breathe. You can also set up an automatic speed limit that will only be in effect when the vehicle is powered by the specified key. This feature could be useful if you're loaning your car to someone who has little experience. 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 you need to press and hold the lock button while pressing the unlock button. This will stop your smart key fob from transmitting or receiving radio waves and will increase the battery life significantly. You can always restart the function by pressing the unlock and lock button again. Certain smart keys also have anti-theft functions that stop them from being copied by thieves. Mercedes-Benz smart keys use rolling codes to stop unauthorised access. The computer in the car examines the code in milliseconds after the smart key is inserted. BMW uses a Display Key with a small LCD screen with a color. This lets drivers lock their vehicles, unlock their doors, and start them without having to remove the smart key from their pocket. Call Pop-A-Lock if you need to replace the battery in the smart key fob you have or if you are thinking of purchasing a car with smart-key. Our mobile locksmiths can change the battery on any smart key and also help you set it so that your car recognizes it. Special Cases While smart keys are not theft-proof, they do help to discourage thieves. Smart key fobs are designed to keep hackers from hacking into the system. When they are placed in the ignition of the car, the computer verifies the code in milliseconds. Mercedes-Benz developed this technology, which is currently used by luxury car manufacturers. A smart key system will work even if it is not possible to remember the key in the trunk or leave it in an establishment. Some systems will alert the driver when the battery is low. Certain brands provide key covers specifically designed for smart keys to guard the fob from damage.