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Vehicle Smart Key Technology

Smart keys for vehicles allow the driver to unlock and start the car by grabbing the door handle or putting the key in the pocket. It also allows a variety of other adjustments like seat position and internal temperature settings as well as mirror positioning.

This could also create security concerns.

Security

Smart keys are key fobs that are computerized that communicate with vehicles via an embedded antenna. This allows them to unlock doors and activate the motor. Smart key fobs, as opposed to traditional keys that emit the same frequency every time they're used, transmit encrypted signals that are only compatible with the particular car to which they belong to. This makes it difficult for hackers with the latest technology to detect or spoof the signal and use your key to steal your car.

For example, Mercedes' system -known as Keyless Go -- has an internal transponder, which identifies the key of the driver. 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 a button on its key.

Certain smart keys, like the ones made by BMW additionally have user-specific settings that permit the driver to adjust the seat, mirrors and steering wheel's location and even audio preferences with the press of a single button. They also come with an emergency lock that stops the car from starting without the key in the ignition.

This technology protects drivers from getting their car locked accidentally especially when looking in the bag or purse for keys on parking lots with strangers or a busy street where crime is high. Many systems also notify drivers when the key is low on battery, although this feature is different for each manufacturer.

Convenience

If you're in a hurry to get to a place the smart key makes entering your vehicle as simple as it can be. You can unlock, lock and start your car simply by pressing a button on the door handle or trunk release. Key fobs can also communicate with your phone to keep track of charging, location and other data about the vehicle, says Popular Mechanics.

A big benefit is that you won't accidentally lock yourself out. The key fob is connected to an antenna in the vehicle to determine if it's within range. If it's not, the engine won't start. This will stop thieves from the vehicle and stealing its parts.

BMW reports that the smart key makes use of rolling codes in order to prevent hacking and cloning. The computer inside the vehicle recognizes and verifies the code prior to starting the motor. Most systems also have a mechanical backup in the form of an unnoticed key blade to serve as a styling tool.

How Stuff Works Electronics notes that modern smart car key fob programming keys also detect the keys in use and adjust vehicle settings accordingly. If you start the vehicle while holding the key in your palm for instance the windows as well as the sunroof can be opened to allow fresh air to enter the interior. You can also set up a speed limit that will only be activated when the vehicle is powered by the selected key. This feature can be beneficial if you're lending your car 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 car keys 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, hold the lock button until you release it and press the unlock button.

This will stop your smart key fob from being able to transmit or receive radio waves. This will dramatically extend the life of your battery. You can always reactivate the function by pressing the unlock and lock button again.

Some smart keys have anti-theft capabilities that prevent them from being copied by thieves. Mercedes-Benz smart keys utilize rolling codes to stop unauthorised access. The car's computer is able to verify the code within milliseconds following the smart key is put in. BMW also has a similar system with its Display Key, which includes an LCD touchscreen on the smart key for convenience and lets drivers lock or unlock their cars without ever removing the key from their pockets.

Contact Pop-A-Lock if your need to replace the battery in the smart key fob you have or should you be thinking of purchasing a car with smart-key. We can replace the battery on any smart key, and our mobile locksmiths will 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 use rolling security codes that prevent theft, and when placed in the ignition, the car's computer verifies the code within milliseconds. Mercedes-Benz developed this technology, which is currently used by luxury car brands.

Another helpful feature is that many 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 on an excursion. Some systems will alert the driver when the battery is depleted. Certain brands also offer key covers designed specifically for smart forfour key programming keys, to shield the fob from damage.