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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 touching the door handle or by putting the key into the pocket. It also allows many other adjustments, including seat position as well as internal temperature settings and mirror positioning.

This can also lead to security concerns.

Security

Smart keys are key fobs that are computerized and communicate with vehicles via one of the antennas in the car to unlock doors and start the engine. As opposed to traditional keys, which emit the same frequency signal each time they are activated, smart keys transmit encrypted signals that are only compatible with the specific vehicle they belong to. This makes it much more difficult for thieves with advanced technology to intercept or fake the signal, and then use your key to steal your vehicle.

For example, Mercedes' system -- called Keyless Go -- has an internal transponder, which identifies the driver's keys. When the smart car key programming near me Key comes within 1.5 meters of a car it instantly unlocks the door and tailgate and starts the engine when the key's button is activated.

Certain smart fortwo key programming keys, like the ones made by BMW, also have user-specific settings that permit users to alter the mirrors, seat, steering wheel position, and audio preferences with the touch of a single button. They also come with a backup lock, which prevents the vehicle from starting without the key in the ignition.

This technology can prevent drivers from locking their cars, especially when fumbling in a purse or backpack to locate keys in a parking lot filled with strangers or on a busy street with high crime rates. Some systems also notify drivers when the key is in danger of being depleted, though this feature differs by manufacturer.

Convenience

The smart key is ideal for those who are in a rush to get somewhere. By pressing the button on your trunk release lever or door handle, you can open, lock and start your vehicle. The key fob will also interact with your phone to track charging, location and other data about the vehicle, explains Popular Mechanics.

The main benefit is that you can't accidentally get locked out. The key fob is connected to an antenna inside the vehicle to determine whether it's within range. If it's not in range, the engine will not start. This will deter thieves who could steal your vehicle to sell its parts.

BMW reports that the smart key employs rolling codes, as well as to stop cloning and hacking. The vehicle's computer recognizes and verifies the code prior to starting the motor. Most systems have a physical backup system in the form of a hidden key blade.

How Stuff Works Electronics notes that modern smart keys also detect the keys being used and adjust the vehicle settings in accordance with the key's use. If you start the vehicle while holding the key in your hand for instance windows and sunroof will be opened to let air circulate the interior. You can also set the speed limit which will only be applied when the vehicle is started with the selected key, a feature that could be helpful when lending your car 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 this feature simply press and hold the lock button while pressing the unlock button.

This will prevent your smart key fob's ability to send or receiving radio signals which will increase its battery life significantly. You can always restart the function by pressing the unlock and lock buttons again.

Certain smart keys also come with anti-theft functions that stop them from being copied by thieves. Mercedes-Benz smart keys employ rolling codes to block unauthorized access. When the smart car key fob programming key is inserted into ignition, a computer inside the car validates the code in milliseconds prior to starting the engine. BMW uses a Display Key with a small LCD screen with a color. This allows drivers to lock their cars, open them, and even start them without having to remove the smart key from their pocket.

If you're thinking about buying a new car that has 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 can replace the battery of any smart key and also help to set it up so that your car recognizes it.

Special Cases

Smart keys aren't 100% secure against theft, but they do assist in preventing thieves. smart Forfour key Replacement keys utilize rolling security codes to avoid hackers, and when put in the ignition, the vehicle's computer can verify the code within milliseconds. Mercedes-Benz invented this technology, which is now used by luxury car brands.

Another helpful feature is that the majority of smart key systems will continue to operate even if the user has forgotten the key in the trunk or left it at the restaurant, or lost it during the trail. Certain systems will notify the driver when the battery is depleted. Some brands offer keys with covers specifically designed for smart keys to protect the fob from damage.