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Vehicle Smart Key Technology

The smart key replacement key technology that is found in vehicles lets drivers unlock and start their car by simply touching the door handle or putting the key in the pocket. It also allows a variety of other adjustments including the position of the seat as well as internal temperature settings and mirror positioning.

However, this could result in security issues.

Security

Smart keys are key fobs that are computerized which communicate with the vehicle via an embedded antenna. This allows them to unlock doors and start the motor. As opposed to traditional keys, which emit the same frequency signal every time they are press, smart key fobs transmit encrypted signals that are specific to the specific car key cutting and programming they belong to. This makes it harder for thieves who are tech-savvy to impersonate or intercept the signal and use the key to steal your car.

For example, Mercedes' system -- called Keyless Go -- has an internal transponder, which identifies the driver's key. When the Smart Key comes within 1.5 meters of a car it will automatically unlock the tailgate and door and the engine will start when a button on the key is hit.

Certain smart keys, like those made by BMW are also equipped with user-specific settings that allow the driver to adjust the seat, mirrors and steering wheel's position and audio preferences with the press of a single button. They also come with a backup lock that prevents the vehicle from starting if it is not connected to the key.

This technology prevents drivers from accidentally locking their vehicles especially when looking in a purse or a backpack to find keys in parking lots with people who are not familiar with the area or where crime is high. Many systems also alert motorists when their keys are low on battery, although this feature is different for each manufacturer.

Convenience

If you're in a hurry get to a place the smart key makes getting into your vehicle as easy as possible. You can lock, unlock and start your car by pressing the door handle or the trunk release. Popular Mechanics explains that the key fob can be used to track charging, location, and other information about your vehicle.

A major benefit is that you won't accidentally lock yourself out. The key fob communicates with an antenna inside the vehicle to determine if it's in range. If it's not, the engine won't start. This will deter thieves from stealing your vehicle and selling parts of it.

The smart key also uses rolling codes to ward off hacking attempts and cloning, according to BMW. The computer in the vehicle is able to recognize and verify the code prior to starting the motor. Many systems also have a backup mechanical system that is the key blade, which is hidden to serve as a styling tool.

how to unlock a smart car without a key Stuff Works Electronics notes that modern smart keys can also detect when the key is being used and adjust the 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 air circulate through the cabin. You can also set up the speed limit to only be applied when the car is powered by the selected key. This feature is beneficial if you're 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 this feature simply press and hold the lock button while pressing the unlock button.

This will stop your smart key fob's ability to send or receiving radio waves which will increase its battery's life by a significant amount. You can always reactivate the function by pressing both the lock and unlock buttons again.

Certain smart keys come with anti-theft functions that prevent them being stolen by thieves. For example, Mercedes-Benz smart keys use rolling codes to block unauthorized access to the vehicle. The computer in the car will check the code every millisecond after the smart key for smart car is placed. BMW makes use of a Display Key that has a small LCD screen with a color. This lets drivers lock their cars, unlock their doors, and start them without having to remove the smart key from their pocket.

Contact Pop-Alock if you need to replace the battery in the smart key fob you have or should you be thinking of purchasing a car that has a smart-key. We can replace the battery on any smart key, and our mobile locksmiths can help you set it up so that your vehicle can recognize it.

Special Cases

Smart keys are not 100 100% secure against theft, but they do aid in deterring thieves. Smart keys employ rolling security codes to prevent hackers, and when put in the ignition, the vehicle's computer verifies the code within milliseconds. This technology was developed by Mercedes-Benz and is now used by a variety of automobile brands that are luxury.

Another helpful feature is that many smart key systems will operate even if a user forgot the key in the trunk, left it at an eatery or lost it on a hike. Some systems will also notify the driver if the battery is running low. Certain brands have keys with covers specifically designed for smart keys, to shield the fob from damage.