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Vehicle Smart Key Technology

Vehicle smart key technology allows the driver to unlock and start the car simply by grabbing the door handle or putting the key in the pocket. It also allows for many other adjustments like seat position, internal temperature settings and mirror positioning.

However, it could also result in security issues.

Security

Smart keys are key fobs that are computerized that communicate with the vehicle via an embedded antenna. This allows them to unlock doors and activate the motor. Contrary to conventional keys, which emit the same frequency signal every time they are activated, smart keys transmit encrypted signals that only match the specific car smart key they belong to. This makes it harder for thieves with advanced technology to intercept or fake the signal and use your key to steal your vehicle.

For example, Mercedes' system -- called Keyless Go -- has an internal transponder which can identify the driver's keys. The Smart Key automatically unlocks and opens the doors and the tailgate when it is within 1.5 meters. It also starts the engine by pressing a button on its key.

Furthermore certain smart keys- like those from BMW have their own user settings that allow the driver to adjust seat, mirrors and the steering wheel's position as well as audio preferences at the touch of the button. They also have a backup lock, which stops the car from starting without the key in the ignition.

This technology can prevent drivers from locking their cars, especially when searching through a purse or backpack to locate keys in a parking lot packed with people or on a busy street with high crime rates. Many systems will also alert drivers when the battery in their keys is low, but this feature varies by manufacturer.

Convenience

If you're in a hurry get to a place, the smart key makes getting into your vehicle as simple as it can be. You can unlock, lock and start your car by pressing a button on the door handle or trunk release. The key fob will communicate with your phone to keep track of charging, location and other information about the vehicle, explains Popular Mechanics.

It isn't safe to lock your keys inside the car. The key for smart car fob communicates with an antenna inside the vehicle to determine if it is within range. If it's not, the engine won't start. This helps deter would-be thieves who would steal your vehicle in order to sell the parts.

BMW reports that the smart key makes use of rolling codes to stop cloning and hacking. The computer inside the vehicle recognizes the code and confirms it prior to launching the engine. The majority of systems have a mechanical backup in the form of a hidden key blade.

Modern smart keys also know which key is in use and adjust the car settings in accordance with the key's use, according to How Stuff Works Electronics. If you turn on the vehicle while holding the key in your palm, for example windows and the sunroof will be opened to let air circulate the interior. You can also set a speed limit which will only be applied when the car is powered by the chosen key. This feature is beneficial if you're lending your vehicle to a driver with no 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, hold the lock button until you release it and press the unlock button.

This will disable your smart key fob's smart chip from sending or receiving radio signals that could extend its battery's life considerably. You can always activate this feature by pressing the unlock and lock buttons again.

Some smart keys have anti-theft features that stop them from being stolen by thieves. Mercedes-Benz smart keys use rolling codes to block the unauthorized access. The car's computer examines the code in milliseconds after the smart car key Programming (marvelvsdc.faith) key is introduced. BMW has a similar system with its Display Key, which comes with an LCD touchscreen on the smart key for ease of use and allows drivers to lock or unlock their cars without ever removing the key from their pockets.

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

Special Cases

Smart keys aren't 100% theft-proof but they can aid in deterring thieves. Smart keys utilize rolling security codes to prevent hacking, and when placed in the ignition, the vehicle's computer validates the code within milliseconds. This technology was developed by Mercedes-Benz and is currently used by a number of high-end car brands.

Another helpful feature is that the majority of smart key systems will continue to operate in the event that the user forgets the key in the trunk, left it at a restaurant or lost it on an excursion. Some systems will alert the driver when the battery is running low. Certain brands also offer key covers that are specifically designed for smart keys that protect the fob from damage.