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Vehicle Smart Key Technology The smart key technology that is found in vehicles allows drivers to unlock and start their car by simply touching the door handle, or putting the key in the pocket. It also permits a variety of other adjustments, such as seating positions and temperature settings inside the car, stereo presets and mirror positions. This could also create security concerns. Security Smart keys are computerized key fobs that communicate with vehicles through an embedded antenna. auto smart key replacement G28CarKeys can unlock doors and begin the motor. In contrast to conventional keys that emit the same frequency signal each time they are used, smart keys transmit encrypted signals that are specific to the specific vehicle they belong to. This makes it more difficult for hackers with the latest technology to spoof or intercept the signal and use your key to steal your vehicle. For instance, Mercedes' system -known as Keyless Go — has an internal transponder, which identifies the key of the driver. When the Smart Key comes within 1.5 meters of a vehicle it automatically unlocks the door and tailgate and starts the engine when the key's button is press. Certain smart keys, such as those made by BMW, also have user-specific settings, which allow users to alter the seat, mirrors and steering wheel's location and even audio preferences with the click of a button. They also come with a backup lock that blocks the vehicle from running without the key. This technology protects drivers from being unable to lock their vehicle especially when looking in the bag or purse for keys on a parking lot with strangers, or on a street where crime is high. A lot of systems will alert motorists when the battery for their key is low, though this feature varies by the manufacturer. Convenience If you're in a hurry to get somewhere the smart key makes getting into your vehicle as easy as it can be. By pressing the button on the trunk release lever or door handle, you can open, lock and begin your vehicle. Popular Mechanics explains that the key fob can be used to track charging, location, and other vehicle information. You shouldn't lock your keys inside the car. The key fob communicates with an antenna in the vehicle to determine if the key is in range. If it's not in range, the engine will not start. This is a deterrent to thieves who would steal your vehicle to sell the parts. BMW reports that the smart key makes use of rolling codes as well to stop cloning and hacking. A computer in the vehicle is able to recognize the code and verifies it prior to starting the engine. The majority of systems have a mechanical backup in the form of an unnoticed key blade. How Stuff Works Electronics notes that modern smart keys can also detect the keys used and adjust the car settings in line with the use of the key. For example, if you turn on the car while holding the key fob in your hand the windows and the sunroof are opened to let the cabin air dry. You can also set a speed limit that will only be in effect when the car is started with the selected key, which can 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 do this, press and hold the lock button while pressing the unlock button. This will disable your smart key fob from transmitting or receiving radio waves that could extend its battery life significantly. You can always restart the function by pressing the lock and unlock buttons again. Some smart keys also have anti-theft features to prevent them from being copied by thieves. Mercedes-Benz smart key uses rolling codes to stop unauthorised access. The computer in the car will check the code every millisecond after the smart key is placed. BMW offers a similar system with its Display Key, which has a small LCD color touchscreen on the smart key for ease of use, and lets drivers lock and unlock their vehicles without ever taking the key from their pockets. Contact Pop-A-Lock if your need to replace the battery on your smart key fob, or if you are thinking of buying a car with a smart-key. We can replace the battery in any smart key and our mobile locksmiths can assist you in setting the system so that your car can recognize it. Special Cases Smart keys aren't 100% safe from theft, but they can help deter thieves. Smart key fobs use rolling security codes to protect against hacking, and when placed in the ignition, the vehicle's computer can verify the code within milliseconds. This technology was developed by Mercedes-Benz and is now employed by a number of high-end car brands. A smart key system will continue to work even if you don't remember the key in the trunk or leave it at an establishment. Some systems will alert the driver when the battery is depleted. Certain brands provide key covers specifically designed for smart keys. They keep the key safe from harm.