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Vehicle smart car keys Key Technology

The smart key technology in vehicles allows a driver to unlock and start the car by touching the door handle or putting the key in the pocket. It also allows for a variety of other adjustments such as the position of the seat and internal temperature settings as well as mirror position.

This could also raise security worries.

Security

Smart keys are computerized key fobs that communicate with the vehicle via an embedded antenna. This allows them to unlock doors and activate the motor. Smart keys, unlike traditional keys, which emit the same frequency every time they're pressed, send encrypted signals that are compatible with the particular car to which they belong. This makes it much more difficult for thieves with the latest technology to steal or spoof the signal and use the key to steal your car.

Mercedes' Keyless Go system for instance, has an internal transponder, which can identify the key of the driver. The Smart Key automatically unlocks and opens the doors and tailgate when it is within 1.5 meters. It also turns on the engine by pressing a button on its Key Programming.

Certain smart keys, such as those made by BMW are also equipped with user-specific settings that allow users to alter the mirrors, seat, steering wheel position, and audio preferences at the press of a single button. They also have a backup lock that stops the car from starting if the key is not in the ignition.

This technology helps drivers avoid accidentally locking their vehicles particularly when they are searching bags or purses to find keys in an open parking lot with strangers or a busy street where crime is high. Many systems will also alert drivers if the key battery is not fully charged, though this feature can vary by the manufacturer.

Convenience

If you're in a hurry to get somewhere, the smart key makes entering your car as easy as possible. By pressing the button on your trunk release or door handle you can unlock, lock and start your vehicle. Key fobs can also interact with your phone to track charging, location and other data about the vehicle, according to Popular Mechanics.

You don't want to accidentally lock your keys in the car. The key fob communicates with an antenna within the vehicle to determine if the key is in range. If it's not, the engine will not start. This will deter thieves from absconding with your vehicle and selling parts of it.

BMW reports that the smart key employs rolling codes in order to stop cloning and hacking. A computer within the vehicle detects the code and confirms it prior to starting the engine. Most systems have a mechanical backup system that is an invisible key blade.

Modern smart keys also recognize which key is in use and adjust the car settings in line with the use of the key, says How Stuff Works Electronics. For instance, if you turn on the car while holding the key fob in your hand the windows and sunroof will open to let air circulate through the cabin. You can also set a speed limit which will only be activated when the car is powered by the specified key. This feature could be useful when you lend your vehicle to a driver who has no prior 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 down and then press the unlock button.

This will disable your smart key fob from transmitting or receiving radio waves, which will extend its battery's life by a significant amount. You can reactivate this function by pressing the unlock and lock buttons again.

Some smart keys also have anti-theft features to prevent them from being copied by thieves. For instance, Mercedes-Benz smart keys use rolling codes to block unauthorized access to the vehicle. When the smart key is inserted in the ignition, a computer in the car checks the code in milliseconds prior to it starts the engine. BMW uses a similar method with its Display Key, which includes an LCD touchscreen on the smart key for convenience, and allows drivers to lock or unlock their cars without ever removing it from their pockets.

If you're thinking of buying an automobile with a smart key, or if you require the battery in your smart key fob replaced, contact 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

Although smart keys aren't theft-proof, they do help to deter thieves. smart car key programmer keys employ rolling security codes to prevent hacking, and when placed in the ignition, the car's computer validates the code within milliseconds. This technology was invented by Mercedes-Benz and is now utilized by a variety of high-end car brands.

A smart forfour key replacement key system will work even if it is not possible to remember the key in the trunk or leave it in an establishment. Some systems will also alert the driver if the battery is running low. Some brands offer key covers that are specifically designed for smart keys to guard the fob from damage.