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Vehicle Smart Key Technology The smart key technology found in vehicles allows drivers to unlock and start their car by simply pressing the door handle, or placing the key into the pocket. It also permits various other adjustments, including the position of the seat, internal temperature settings and mirror position. However, this can also lead to security concerns. Security Smart keys are computerized key fobs that communicate with the vehicle through an embedded antenna to unlock doors and activate the motor. Contrary to conventional keys, which emit the same frequency signal each time they are press, smart key fobs transmit encrypted signals that are only compatible with the car they belong to. This makes it difficult for thieves with advanced technology to intercept or spoof the signal and use your key to steal your car. For instance, Mercedes' system — called Keyless Go — has an internal transponder which can identify the driver's keys. 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 a button on its key. Additionally there are smart keys thatsuch as those from BMW include individual user settings that let the driver adjust the seat, mirrors and the position of the steering wheel as well as audio preferences at the touch of the button. They also have a backup lock, which stops the car from starting without the key in the ignition. This technology helps drivers avoid getting their car locked accidentally and causing damage to their vehicle, particularly when searching a purse or a backpack for keys in parking lots with strangers, or on a street where crime is high. A lot of systems will also notify drivers when keys are in danger of being depleted, though this feature is different for each manufacturer. Convenience The smart key is perfect for those trying to get to their destination. By pressing the button on the trunk release or door handle you can unlock, lock and get into your vehicle. Key fobs can also communicate with your phone to keep track of charging, location and other information about the vehicle, explains Popular Mechanics. You can't accidentally lock your keys in the car. The key fob communicates to an antenna inside the vehicle to determine whether it is within the range. If it's not, the engine won't start. This will stop thieves from taking your vehicle and then selling its parts. The smart key also uses rolling codes to protect against hacking attempts and cloning, says BMW. A computer in the vehicle detects the code and checks it before starting the engine. A majority of systems also have a mechanical backup that is an unnoticed key blade to be used for styling purposes. Modern smart keys can also tell which key is in use and adjust the settings of the vehicle as needed, according to How Stuff Works Electronics. If you turn on the vehicle while holding the key in your hand for instance windows and the sunroof can be opened to allow fresh air to enter the interior. You can also set up the speed limit to only be in effect when the vehicle is powered by the specified key. This feature can be useful if you are lending 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 it, press down the lock button and press the unlock button. This will block your smart key fob's ability to send or receiving radio signals that could extend its battery life significantly. G28CarKeys is possible to reactivate the function by pressing the unlock and lock buttons again. Certain smart keys have anti-theft capabilities that prevent them from being copied by thieves. Mercedes-Benz smart key uses rolling codes to prevent the unauthorized access. When a smart key is put in the ignition, a computer inside the car checks the code in milliseconds, before even starting the engine. BMW utilizes a Display Key with a small LCD screen with a color. This allows drivers to lock their cars, unlock them, and then start them without having to remove the smart key from their pocket. Call Pop-A-Lock if you need to replace the battery in your smart key fob, or considering purchasing a vehicle with a smart-key. Our mobile locksmiths can replace the battery on any smart key, and will help to set it so that your car recognizes it. Special Cases While smart keys aren't theft-proof, they do help to stop thieves. Smart key fobs are designed to deter hackers from hacking into the system. When they are inserted into the ignition of the vehicle, the computer verifies the code in milliseconds. Mercedes-Benz developed this technology, which is currently used by luxury car brands. Another useful feature is that many smart key systems will continue to work if the user forgot the key in the trunk or left it in an eatery or lost it during hiking. Certain systems will notify the driver when the battery is running low. Certain brands have key covers specifically made for smart keys that ensure that the fob is protected from damage.