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Vehicle Smart Key Technology

The smart key technology that is found in vehicles lets drivers unlock and start their vehicle by just touching the door handle, or putting the key in the pocket. It also enables a range of other adjustments, such as the position of seats and internal temperature settings, mirror position and stereo presets.

This can also cause security issues.

Security

replacement smart car key keys are advanced computerized key fobs that communicate with vehicles via one of the antennas built into the car to unlock the doors and to start the engine. Smart keys, unlike traditional keys, which emit the same frequency every time they're used, transmit encrypted signals that are only compatible with the car to which they belong. This makes it harder for thieves with a technological edge to fake or intercept the signal and use the key to steal your car.

For instance, Mercedes' system -- called Keyless Go -- has an internal transponder that identifies 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 starts the engine by pressing a button on its key.

Certain smart keys, like the ones from BMW additionally have user-specific settings. These allow the driver to adjust the seat, mirrors and steering wheel's location 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 assists drivers from accidentally locking their vehicles, particularly when they are rummaging through their purses or backpack to locate keys in a parking space packed with people or on an area with high rates of crime. Many systems will also inform drivers when the battery of their key is depleted, though this feature varies from manufacturer manufacturer.

Convenience

The replacement smart car key key is perfect for those in a hurry to get to their destination. You can unlock, lock and start your car by pressing a button on the door handle or trunk release. The key fob will interact with your phone to keep track of charging and location as well as other information regarding the vehicle, as explained by Popular Mechanics.

One of the biggest advantages is that you won't accidentally lock yourself out. The key fob communicates to an antenna in the vehicle to determine if it's within the range. If it's not, the engine will not start. This will deter thieves who could steal your vehicle in order to sell its parts.

BMW reports that the smart key utilizes rolling codes in order to prevent hacking and cloning. A computer inside the vehicle is able to recognize the code and verifies it prior to launching the engine. Many systems also have a mechanical backup in the form of the key blade, which is hidden to serve as a styling tool.

How Stuff Works Electronics notes that modern smart keys also detect the keys being used and adjust the vehicle settings in line with the use of the key. For instance, if turn on the car holding the key fob in the palm of your hand, the windows and sunroof open to let air circulate through the cabin. You can also set up an automatic speed limit that will only be applied when the car is powered by the chosen key. This feature can be useful if you are lending your vehicle to a driver who has no prior Vehicle smart key 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 do this, hold the lock button until you release it and press the unlock button.

This will disable your smart key fob from sending or receiving radio waves that could extend its battery life significantly. You can always reactivate this feature by pressing the unlock and lock buttons once more.

Certain smart keys for cars keys also have anti-theft functions that stop them from being copied by thieves. Mercedes-Benz smart keys use rolling codes to prevent unauthorised access. When the smart key is put in the ignition, a computer in the car confirms the code in milliseconds before starting the engine. BMW uses a Display Key that has a tiny LCD color screen. This lets drivers lock their cars, unlock them, and start them without having to remove the smart key from their pocket.

If you're thinking about buying an automobile with a smart key, or require the battery in your smart key fob replaced, contact Pop-A-Lock for a fast and easy service. Our mobile locksmiths will replace the battery on any smart car key repair key, and will help to set it so that your car can recognize it.

Special Cases

Smart keys aren't 100% theft-proof, but they assist in preventing thieves. smart car key programming keys use rolling security codes to prevent hacking, and when placed in the ignition, the car's computer validates the code within milliseconds. Mercedes-Benz invented this technology, which is now used by luxury car brands.

Another helpful feature is that most smart key systems will continue to work in the event that the user forgets the key in the trunk or left it at the restaurant or if it is lost on hiking. Some systems will also alert the driver when the battery is not fully charged. Some brands offer key covers that are specifically designed for smart keys, to shield the fob from damage.