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Vehicle Smart Key Technology

Smart keys for vehicles allow drivers to unlock and start the car simply by grabbing the door handle or placing the key in the pocket. It also allows many other adjustments like the position of the seat and internal temperature settings as well as mirror positioning.

This can also cause security worries.

Security

Smart keys are advanced key fobs that are computerized and communicate with the vehicle using one of the antennas in the car to open the doors and start the engine. As opposed to traditional keys, which emit the same frequency signal every time they are activated, smart keys transmit encrypted signals that are only compatible with the specific car they belong to. This makes it harder for tech-savvy thieves to steal or spoof the signal and use the key to steal your car.

Mercedes' Keyless Go system, for example, has an internal transponder that identifies the driver's keys. When the smart car key not working Key comes within 1.5 meters of a car it automatically unlocks the tailgate and door and starts the engine when the key's button is activated.

Furthermore, some smart keys -- like those from BMW come with individual user settings that let the driver alter the seat, mirrors, the steering wheel's position as well as audio preferences at the touch of a button. They also have an emergency lock that prevents the vehicle from starting without the key in the ignition.

This technology protects drivers from accidentally locking their vehicles and causing damage to their vehicle, particularly when searching the bag or purse to find keys in an open parking lot with strangers, or on a street where crime is high. Many systems will also alert drivers if the key battery is low, but this feature varies from manufacturer the manufacturer.

Convenience

The smart key is perfect for those trying to get somewhere. You can lock, unlock and start your car by pressing the door handle or the trunk release. Popular Mechanics explains that the key fob can be used to track charging, location, and other vehicle information.

A big benefit is that you aren't able to accidentally get locked out. The key fob communicates with an antenna in the vehicle to determine if the key is in range. If it's not, the engine won't not start. This will deter thieves from the vehicle and stealing parts of it.

BMW reports that the smart key utilizes rolling codes to stop cloning and hacking. The computer in the vehicle can recognize and verify the code prior to launching the motor. A majority of systems also have a backup mechanical system in the form of a key blade that's hidden to be used for styling purposes.

How Stuff Works Electronics notes that modern smart keys can also detect when the key is when it is in use and adjust the vehicle settings in line with the use of the key. If you switch on the vehicle while holding the key in your palm, for example windows and the sunroof will be opened to let air circulate the interior. You can also set the speed limit to only be applicable when the vehicle is started with the selected key, a feature that could 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 this feature make sure you press and hold the lock button while pressing the unlock button.

This will stop your smart key fob's ability to send or receiving any radio waves, which will extend its battery life significantly. You can always restart this function by pressing the unlock and lock buttons again.

Some smart 450 key programming keys include anti-theft features to prevent them from being copied by thieves. Mercedes-Benz smart keys utilize rolling codes to prevent unauthorized access. When a smart key is put in the ignition, a computer within the car validates the code in milliseconds before starting the engine. BMW uses a Display Key with a small LCD screen with a color. This allows drivers to lock their cars, unlock them, and then start the engine without having to take the smart fortwo key replacement key from their pocket.

Contact Pop-A-Lock if your need to replace the battery in your smart key fob, or should you be thinking of purchasing a vehicle with a smart-key. Our mobile locksmiths will change the battery of any smart key and also help to set it up so that your car recognizes it.

Special Cases

While smart keys aren't secure against theft, they can help to deter thieves. Smart keys utilize rolling security codes to prevent 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 high-end car brands.

A smart car key programming key system will work even if it is not possible to remember the key in your trunk or leave it in the restaurant. Certain systems will also inform the driver when the battery is depleted. Certain brands have key covers that are specifically designed for smart keys to protect the fob from damage.