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Vehicle Smart Key Technology

The technology of smart keys in vehicles allows drivers to unlock and start their vehicle by simply touching the door handle, or putting the keys in the pocket. It also allows for various other adjustments, including seat position the internal temperature setting and mirror positioning.

This could also raise security worries.

Security

Smart keys are highly sophisticated electronic keys that communicate with a vehicle via one of the antennas in the car to open the doors and start the engine. Unlike conventional keys, which emit the same frequency signal every time they are press, smart key fobs transmit encrypted signals that are only compatible with the car they belong to. This makes it more difficult for thieves with advanced technology to intercept or fake the signal, and then use your key to steal your vehicle.

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

Some smart keys, such as those made by BMW, also have user-specific settings, which allow drivers to alter the seat, mirrors, steering wheel position, and even the audio settings with the click of a button. They also have a backup lock that prevents the vehicle from running without the key.

This technology protects drivers from accidentally locking their vehicles, especially when searching in a purse or a backpack for keys in the parking lot of people who are not familiar with the area or where crime is high. A lot of systems will alert drivers when the battery of their key is low, though this feature can vary by manufacturer.

Convenience

The smart key is ideal for those on the move and need to get somewhere. You can unlock, lock and start your car simply by pressing a button on the door handle or the trunk release. Popular Mechanics explains that the key fob can be used to track charging location, charging status, and other information about your vehicle.

The main benefit is that you don't lose your keys. The key fob communicates with an antenna in the vehicle to determine whether it is within the range. If it's not, the engine will not start. This will deter thieves from taking your vehicle and then selling its parts.

The smart Car key case key also makes use of rolling codes to ward off hacking attempts and cloning, according to BMW. The computer inside the vehicle can recognize and verify the code prior to starting the motor. Many systems also have a backup mechanical system that is a key blade that's hidden to serve as a styling tool.

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. If you turn on your vehicle while holding the key in your hand, for example the windows as well as the sunroof can be opened to allow fresh air to enter the interior. You can also set an automatic speed limit that will only be applied when the car is powered by the chosen key. This feature can be beneficial if you're lending your car to a driver who has little 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 it, press the lock button, then press the unlock button.

This will stop your smart key fob from sending or receiving any radio waves, which will extend its battery's life by a significant amount. You can always restart this feature by pressing the unlock and lock buttons once more.

Certain smart keys have anti-theft capabilities that protect them from being copied by thieves. For instance, Mercedes-Benz smart keys use rolling codes to stop unauthorized access to the vehicle. The car's computer is able to verify the code within milliseconds following the smart key is introduced. BMW uses a similar method with its Display Key, which comes with an LCD touchscreen on the smart key for convenience, and allows drivers to lock, unlock, and start their vehicles without ever taking the key from their pockets.

Contact Pop-Alock if you need to replace the battery on the smart key fob you have or in the event that you are thinking of purchasing a car that has a smart-key. We can replace the battery on any smart key and our mobile locksmiths are able to assist you in setting the system so that your vehicle can recognize it.

Special Cases

While smart keys aren't security-wise, they can be used to discourage thieves. Smart keys use rolling security codes to protect against the hacking of keys, and when they are placed in the ignition, the vehicle's computer checks the code in milliseconds. Mercedes-Benz invented this technology, which is currently used by luxury car manufacturers.

Another great feature is that many smart car replacement key key systems will continue to function even if the user has forgotten the key in the trunk or left it at an eatery or lost it during a hike. Some systems will also notify the driver if the battery is low. Certain brands have key covers designed specifically for smart keys to guard the fob from damage.