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A Help Guide To Smart Car Key Programming From Start To Finish
Vehicle Smart Key Technology

The smart key technology in vehicles allows the driver to unlock and start the car by touching the door handle or placing the key in the pocket. It also allows a variety of other adjustments like seat position, internal temperature settings and mirror positioning.

However, it could also lead to security concerns.

Security

Smart keys are key fobs that are computerized which communicate with the vehicle through an embedded antenna to unlock doors and activate the motor. Smart key fobs, unlike traditional keys that 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 difficult for thieves with a technological edge to spoof or intercept the signal and use the key to take your car.

Mercedes' Keyless Go system for instance, has an internal transponder that can identify the driver's key. When the Smart Key comes within 1.5 meters of a vehicle it will automatically unlock the door and tailgate, and the engine starts when the key's button is pressed.

Furthermore some smart keys- like those from BMW have their own user settings that let the driver adjust the mirrors, seat and the steering wheel's position and audio preferences at the push of a button. They also have an emergency lock that stops the vehicle from running without the key.

This technology can prevent drivers from locking their vehicles, particularly when searching through a purse or backpack for keys in a parking lot full of strangers or in an area with high crime rates. A lot of systems will also notify drivers when keys are in danger of being depleted, though this feature differs by manufacturer.

Convenience

The smart key is ideal for those in a hurry to get somewhere. By pressing the button on your trunk release or door handle you can lock, unlock and open your vehicle. Key fobs can also interact with your phone to track charging, location and other data about the vehicle, says Popular Mechanics.

It isn't safe to lock your keys inside 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 stop thieves from stealing your vehicle and selling parts of it.

The smart key also uses rolling codes to deter hacking attempts and cloning, says BMW. The vehicle's computer recognizes and verifies the code prior the start of the motor. Most systems come with a mechanical backup in the form of a key blade hidden in the.

How Stuff Works Electronics notes that modern smart keys also detect the key being used and adjust the vehicle settings in line with the use of the key. For example, if you start the car while holding the key fob in your palm, the windows and the sunroof are opened to let air circulate through the cabin. You can also set up the speed limit to only be used when the vehicle is powered by the selected key. This feature can be useful if you are lending your vehicle to a person who is not experienced.

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 simply press and hold the lock button while pressing the unlock button.


This will make it impossible for your smart key fob 's smart device from being able to transmit or receive radio waves. This will greatly extend its battery life. It is possible to reactivate the function by pressing the unlock and lock button again.

Certain smart keys have anti-theft functions that stop them from being copied by thieves. For example, Mercedes-Benz smart keys use rolling codes to block unauthorised access to the vehicle. When the smart key is inserted in the ignition, a computer in the car validates the code in milliseconds prior to it starts the engine. BMW has a similar system with its Display Key, which features a small LCD color touchscreen on the smart key for ease of use, and lets drivers lock and unlock their vehicles without ever taking it from their pockets.

If you're thinking of buying a new car with a smart key, or require your smart key fob's battery replaced, contact Pop-A-Lock for a quick and efficient service. Our mobile locksmiths can change the battery on any smart key and assist to set it up so that your car can recognize it.

Special Cases

Smart keys are not 100 100% safe from theft, but they can assist in preventing thieves. Smart keys use rolling security codes to protect against the hacking of keys, and when they are placed in the ignition, the vehicle's computer checks the code in milliseconds. Mercedes-Benz invented this technology, which is currently used by luxury car manufacturers.

A smart key system will continue to function even if you lose the key in the trunk or leave it at an establishment. Certain systems will also notify the driver if the battery is low. Certain brands also offer key covers specifically made for smart keys that keep the fob protected from damage.

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