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Vehicle Smart Key Technology

Vehicle smart key technology allows drivers to open and start the car simply by touching the door handle or putting the key in the pocket. It also permits various other adjustments like seat position as well as internal temperature settings and mirror positioning.

However, this could also cause security issues.

Security

Smart keys are key fobs with computers that communicate with a vehicle via one of the antennas that are embedded in the vehicle to open the doors and begin the engine. Smart key fobs, as opposed to traditional keys, which emit the same frequency each time they're pulled, transmit encrypted signals which are only compatible with the specific car to which they belong to. This makes it difficult for thieves who are tech-savvy to fake or intercept the signal and use the key to steal your car.

For example, Mercedes' system -- called Keyless Go -- has an internal transponder which can identify the driver's key. When the smart car key programmer Key comes within 1.5 meters of a car, it automatically unlocks the tailgate and door and the engine will start when the key's button is pressed.

Certain smart keys, such as the ones from BMW additionally have user-specific settings. These allow users to alter the mirrors, seat, steering wheel position, and even the audio settings with the touch of a single button. They also come with a backup lock that blocks the vehicle from running without the key.

This technology helps drivers avoid accidentally locking their vehicles particularly when they are searching a purse or a backpack for keys on a parking lot with strangers, or on a street where crime is high. Many systems will also inform drivers when the battery of their key is low, though this feature varies by manufacturer.

Convenience

The smart key is perfect for those trying to get somewhere. By pressing the button on the trunk release or door handle, you can unlock, lock and open your vehicle. Popular Mechanics explains that the key fob can also be used to monitor charging or location as well as other information about your vehicle.

You can't accidentally lock your keys in the car. The key fob communicates with an antenna within the vehicle to determine if it's in range. If it's not, the engine will not start. This will deter thieves who might steal your vehicle to sell the parts.

BMW reports that the smart key repair key uses rolling codes in order to prevent hacking and cloning. A computer inside the vehicle reads the code and verifies it before starting the engine. Most systems have a mechanical backup in the form of an invisible key blade.

how to unlock a smart car without a key Stuff Works Electronics notes that modern smart keys can also detect the keys being used and adjust the vehicle settings in accordance with the key's use. For example, if you turn on the car while holding the key fob in the palm of your hand the windows and sunroof will open to let the cabin air dry. You can also set an upper limit on speed that will only be in effect when the car is started using the specified key, a feature that could be helpful when lending your car 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 this feature, hold the lock button, then press the unlock button.

This will disable your smart key fob from transmitting or receiving any radio waves which will increase its battery's lifespan significantly. You can reactivate this feature by pressing the unlock and lock buttons again.

Certain smart keys come with anti-theft features that stop them from being stolen by thieves. For instance, Mercedes-Benz smart keys use rolling codes to block unauthorised access to the vehicle. The computer in the car examines the code in milliseconds after the smart key is placed. BMW makes use of a Display Key that has a small LCD color screen. This allows drivers to lock their vehicles, unlock them, and start them without taking the smart key from their pocket.

If you're considering purchasing a new car with a smart key, or if you require the battery of your smart key fob replaced, contact Pop-A-Lock for a quick and simple service. Our mobile locksmiths will change the battery on any smart key and assist you set it so that your car recognizes it.

Special Cases

Although smart keys aren't security-wise, they can be used to hinder thieves. Smart keys employ rolling security codes to protect against the hacking of keys, and when they are placed in the ignition, the car's computer can verify the code within milliseconds. This technology was developed by Mercedes-Benz and is now used by a variety of premium car brands.

A smart key system will work even if you forget the key in your trunk or leave it in an establishment. Some systems will alert the driver when the battery is running low. Certain brands also offer key covers specifically made for smart keys that ensure that the fob is protected from harm.