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Vehicle Smart Key Technology

The smart key technology in vehicles lets drivers unlock and start their vehicle by simply pressing the door handle or placing the key into the pocket. It also enables a range of other adjustments like seating positions and internal temperature settings, mirror position and stereo presets.

This could also create security concerns.

Security

Smart keys are computerized key fobs which communicate with the vehicle through an embedded antenna. It can unlock doors and activate the motor. Contrary to conventional keys, which emit the same frequency signal every time they are pressed, smart key fobs transmit encrypted signals that are only compatible with the specific car they belong to. This makes it harder for thieves with a technological edge to steal or spoof 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. The Smart Key automatically unlocks and opens the doors and tailgate when it is within 1.5 meters. It also begins the engine by pressing the key.

Additionally some smart keys- like those from BMW -- have individual user settings that allow the driver to adjust the seat, mirrors and the position of the steering wheel as well as audio preferences at the push of one button. They also have the backup lock, which prevents the vehicle from starting if the key is not in the ignition.

This technology stops drivers from being unable to lock their vehicle especially when looking in the bag or purse to find keys in parking lots with strangers or a busy street where crime is high. Many systems will also alert motorists when the battery for their key is depleted, though this feature varies by manufacturer.

Convenience

The smart key is perfect for those who are trying to get to their destination. By pressing the button on your trunk release or door handle, you can open, lock and open your vehicle. The key fob will also connect to your phone to track charging locations, charging times and other details regarding the vehicle, as explained by Popular Mechanics.

It isn't safe to lock your keys in the car. The key fob communicates with the antenna inside the vehicle to determine if the key is in range. If it's not, the engine will not start. This will deter thieves from the vehicle and stealing its parts.

BMW reports that the smart car spare key key makes use of rolling codes as well to protect against hacking and cloning. The vehicle's computer recognizes and verifies the code prior the start of the motor. Most systems have a physical backup system in the form of an invisible key blade.

how to unlock a smart car without a key Stuff Works Electronics notes that modern smart keys also detect when the key is when it is in use and adjust the vehicle settings in accordance with the key's use. For instance, if turn on the car while holding the key fob in the palm of your hand the windows and sunroof will open to let air circulate through the cabin. You can also set up the speed limit to only be used when the vehicle is powered by the specified key. This feature can be useful when you lend your car 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 do this, hold the lock button until you release it and press the unlock button.

This will prevent your smart key fob from transmitting or receiving radio waves and will increase the battery's lifespan significantly. You can always restart the function by pressing both the unlock and lock button again.

Certain smart keys also come with anti-theft features to prevent them from being copied 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 is put in. BMW utilizes a Display Key that has a tiny LCD color screen. This allows drivers to lock their cars, unlock them, and start the engine without having to take the smart key from their pockets.

If you're considering purchasing the latest car equipped with a smart roadster key programming key, or you need your smart key fob's battery replaced, call Pop-A-Lock for a quick and simple service. Our mobile locksmiths can replace the battery on any smart key and also help you set it up so that your car can recognize it.

Special Cases

Smart keys aren't 100 100% theft-proof, but they help deter thieves. Smart key fobs are designed to deter hackers from hacking the system. When they are placed in the ignition of the car, the computer verifies the code in milliseconds. Mercedes-Benz developed 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 if the user forgot the key in the trunk or left it in the restaurant or if it is lost on hiking. Certain systems will also inform the driver when the battery is running low. Certain brands also offer key covers that are specifically designed for smart car key fob programming keys to protect the fob from damage.