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Vehicle Smart Key Technology

The smart key technology found in vehicles lets drivers unlock and start their vehicle by simply pressing the door handle or putting the keys in the pocket. It also allows for a variety of other adjustments, such as seating positions as well as internal temperature settings stereo presets, and mirror positioning.

This could also create security concerns.

Security

Smart keys are advanced computerized key fobs that communicate with vehicles via one of the antennas that are embedded in the vehicle to unlock the doors and begin the engine. In contrast to conventional keys that emit the identical frequency signal each time they are pressed, smart key fobs transmit encrypted signals that only match the specific vehicle they belong to. This makes it difficult for hackers with the latest technology to intercept or fake the signal and use your key to steal your car.

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

Certain smart keys, like those made by BMW additionally have user-specific settings, which allow drivers to alter the mirrors, seat and steering wheel's position and even audio preferences with the click of a button. They also have an emergency lock that will stop the car from starting without the key in the ignition.

This technology helps keep drivers from locking their vehicles, particularly when they are rummaging through their purses or backpack to locate keys in a parking lot packed with strangers or on a busy street with high rates of crime. A lot of systems will alert motorists when the battery for their key is not fully charged, though this feature varies by the manufacturer.

Convenience

The smart key is ideal for those on the move and need to get somewhere. By pressing the button on your trunk release lever or door handle, you can unlock, lock and open your vehicle. Key fobs can also connect to your phone to keep track of charging, location and other data about the vehicle, explains Popular Mechanics.

A major benefit is that you can't accidentally get locked out. The key fob communicates with an antenna in the vehicle to determine whether it's in range. If it's not in range, the engine will not start. This is a deterrent to thieves who might steal your vehicle in order to sell the parts.

The smart key also uses rolling codes to protect against hacking attempts and cloning, reports BMW. The computer in the vehicle can recognize and verify the code prior to launching the motor. The majority of systems have a mechanical backup in the form of a hidden key blade.

Modern smart keys can also tell which key is in use and adjust the settings of the vehicle as needed, according to How Stuff Works Electronics. For instance, if you turn on the car while holding the key fob in the palm of your hand, the windows and sunroof will open to ventilate the cabin. You can also set the speed limit which will only be in effect when the car is started using the selected key, a feature that could be useful when loaning your car to a new driver.

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, hold the lock button, then press the unlock button.

This will prevent your smart key fob from being able to transmit or receive radio waves. This will greatly extend its battery life. You can always activate this feature by pressing the unlock and lock buttons once more.

Certain smart keys come with anti-theft features that stop them from being copied by thieves. Mercedes-Benz smart keys use rolling codes to stop unauthorised access. When the Smart 450 Key programming key is put in the ignition, a computer inside the car confirms the code in milliseconds, before beginning the engine. BMW uses a Display Key that has a small LCD color screen. This lets drivers lock their cars, open them, and start them without removing the smart key from their pockets.

If you're thinking of buying an automobile with a smart key, or you need your smart key fob's battery replaced, call Pop-A-Lock to get a quick and easy service. We can replace the battery in any smart key, and our mobile locksmiths will assist you in setting the system so that your car can recognize it.

Special Cases

smart car key fob programming keys are not 100 100% safe from theft, but they can help deter thieves. Smart keys employ rolling security codes to prevent the hacking of keys, and when they are placed in the ignition, the vehicle's computer validates the code within milliseconds. This technology was developed by Mercedes-Benz and is now used by a number of high-end car brands.

Another great feature is that many 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 during an excursion. Some systems will alert the driver when the battery is low. Certain brands have key covers specifically made for smart keys that keep the fob protected from harm.