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Vehicle Smart Key Technology

The smart key technology that is found in vehicles enables drivers to unlock and start their car by just touching the door handle, or putting the keys in the pocket. It also permits many other adjustments, including the position of the seat, internal temperature settings and mirror positioning.

This could also raise security issues.

Security

smart car key programming (browse this site) keys are computerized key fobs that communicate with the vehicle via an embedded antenna. This allows them to unlock doors and begin the motor. Smart keys, unlike traditional keys, which emit the same frequency every time they're pressed, transmit encrypted signals that are compatible with the vehicle to which they belong to. This makes it harder for hackers with the latest technology to intercept or spoof the signal and use your key to steal your vehicle.

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

Additionally, smart car key programming some smart car key fob keys -- like those from BMW include individual user settings that allow the driver to alter the seat, mirrors, steering wheel position and audio preferences at the click of a button. They also have an emergency lock that stops the vehicle from starting if it is not connected to the key.

This technology stops drivers from accidentally locking their vehicles and causing damage to their vehicle, particularly when searching the bag or purse for keys on an open parking lot with strangers or a busy street where crime is high. Many systems also alert drivers when keys are in danger of being depleted, though this feature is different for each manufacturer.

Convenience

The smart fortwo key replacement key is ideal for those in a hurry to get somewhere. You can lock, unlock and start your car by pressing the door handle or the trunk release. The key fob will communicate with your smartphone to keep track of charging, location and other information about the vehicle, says Popular Mechanics.

You can't accidentally lock your keys in the car. The key fob is connected to an antenna in the vehicle to determine whether it's within range. If it's not, the engine won't start. This will deter thieves from absconding with your vehicle and selling its parts.

The smart key also uses rolling codes to ward off hacking attempts as well as cloning, according BMW. The computer inside the vehicle detects and validates the code prior to starting the motor. A majority of systems also have a mechanical backup in the form of an unnoticed key blade to be used for styling purposes.

How Stuff Works Electronics notes that modern smart car key reprogramming keys can also detect when the key is used and adjust the car settings according to the situation. If you start the vehicle while holding the key in your hands, for example windows and the sunroof will be opened to let air circulate the interior. You can also set the speed limit which will only apply when the vehicle is started using the selected key, which can be useful when loaning your vehicle to a novice 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, press and hold the lock button while pressing the unlock button.

This will disable your smart key fob from transmitting or receiving any radio signals, which will extend its battery life significantly. You can always reactivate the function by pressing both the unlock and lock buttons again.

Certain smart keys come with anti-theft features to prevent them from being stolen by thieves. For example, Mercedes-Benz smart keys use rolling codes to prevent unauthorized vehicle access. When a smart key is inserted into the ignition, a computer in the car validates the code in milliseconds prior to it starts the engine. BMW makes use of a Display Key that has a tiny LCD screen with a color. This lets drivers lock their vehicles, unlock their doors, and start them without having to remove the smart key from their pocket.

If you're thinking of buying a new car that has a smart key, or need the battery in your smart key fob changed, contact us at Pop-A Lock for a quick and simple service. Our mobile locksmiths can replace the battery of any smart key and help to set it up so that your car can recognize it.

Special Cases

Although smart car replacement key keys aren't theft-proof, they do help to hinder thieves. Smart keys utilize rolling security codes to protect against theft, and when placed in the ignition, the car's computer can verify the code within milliseconds. Mercedes-Benz created this technology, which is now used by luxury car manufacturers.

A smart key system will work even if you don't remember the key in the trunk or leave it at a restaurant. Some systems will alert the driver when the battery is depleted. Certain brands also offer key covers specifically designed for smart keys. They protect the fob from damage.