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Vehicle Smart Key Technology

Smart keys for vehicles allow drivers to unlock and start the car simply by grabbing the door handle or placing the key in the pocket. It also allows a variety of other adjustments, like seats positions, internal temperature settings, mirror positioning and stereo presets.

However, it could also create security concerns.

Security

Smart keys are computerized key fobs that communicate with the vehicle using one of the antennas built into the car to unlock doors and start the engine. Smart key fobs, in contrast to traditional keys, which emit the same frequency every time they're pressed, transmit encrypted signals which are only compatible with the particular car to which they belong. 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.

Mercedes' Keyless Go system for instance, comes with an internal transponder that can identify the driver's key. The Smart Key automatically unlocks and opens the doors and tailgate when it is within 1.5 meters. It also allows you to start the engine by pressing a button on its key.

Certain smart keys, such as those from BMW, also have user-specific settings that allow the driver to alter the mirrors, seat and the steering wheel's position and even audio preferences with the click of a button. They also come with an emergency lock that stops the vehicle starting without the key.

This technology protects drivers from being unable to lock their vehicle particularly when they are searching bags or purses to find keys in parking lots with people who are not familiar with the area or where crime is high. Many systems also alert drivers when their keys are not fully charged, however this feature varies by manufacturer.

Convenience

The smart key is ideal for those who are trying to get somewhere. You can unlock, lock and start your car by pressing a button on the door handle or trunk release. The key fob can also communicate with your smartphone to keep track of charging locations, charging times and other details about the vehicle, says Popular Mechanics.

A major benefit is that you don't be locked out. The key fob communicates with an antenna in the vehicle to determine if the key is in range. If it's not, the engine won't not start. This can deter thieves who might steal your vehicle to sell its parts.

BMW reports that the smart key utilizes rolling codes to ward off hacking and cloning. A computer within the vehicle recognizes the code and confirms it before starting the engine. The majority of systems have a mechanical back-up in the form an unnoticed key blade.

How Stuff Works Electronics notes that modern smart keys can also detect the keys in use and adjust vehicle settings according to the situation. For instance, if start the car while holding the key fob in the palm of 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 applied when the car is powered by the selected key. This feature could be useful when you lend your car to a driver who has no prior 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 this feature make sure you press and hold the lock button while pressing the unlock button.

This will prevent your smart key fob from having to transmit or receive radio waves. This will significantly increase its battery life. You can always reactivate the function by pressing both the lock and unlock buttons again.

Certain smart keys have anti-theft functions that prevent them being stolen by thieves. Mercedes-Benz smart fortwo key replacement key uses rolling codes to stop access by anyone who is not authorized to use it. When a smart key is inserted in the ignition, a computer inside the car verifies the code in milliseconds, before starting the engine. BMW also has a similar system with its Display Key, which comes with a small LCD color touchscreen on the smart key for ease of use, and allows drivers to lock and unlock their cars without ever removing it from their pockets.

If you're thinking of buying an automobile with a smart key, or require your smart forfour key (just click menwiki.men) key fob's battery replaced, call us at Pop-Alock for a fast and easy service. Our mobile locksmiths can change the battery of any smart key and assist to set it up so that your car recognizes it.

Special Cases

While smart keys are not secure against theft, they can help to deter thieves. Smart keys employ rolling security codes that prevent theft, and when placed in the ignition, the car's computer validates the code within 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 your trunk or leave it in an establishment. Some systems will also alert the driver when the battery is depleted. Some brands offer key covers specifically designed for smart keys. They protect the fob from harm.