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Vehicle Smart Key Technology

Vehicle smart key technology allows the driver to unlock and start the car simply by grabbing the door handle or placing the key in the pocket. It also allows for various other adjustments like the position of the seat, internal temperature settings and mirror positioning.

However, it could also lead to security concerns.

Security

Smart keys are computerized key fobs which communicate with the vehicle via an embedded antenna. This allows them to unlock doors and begin the motor. Smart key fobs, as opposed to conventional keys that emit the same frequency each time they're pulled, transmit encrypted signals that are compatible with the specific car to which they belong to. This makes it much more difficult for thieves with advanced technology to intercept or fake the signal, and then use your key to steal your vehicle.

For instance, Mercedes' system -- called Keyless Go -- has an internal transponder, which identifies the driver's key. When the Smart Key comes within 1.5 meters of a car, it automatically unlocks the tailgate and door and the engine will start when a button on the key is hit.

Additionally, some smart keys -like those made by BMW -- have individual user settings that let the driver adjust seat, mirrors and the steering wheel's position as well as audio preferences at the touch of one button. They also have a backup lock that will stop the car from starting without the key in the ignition.

This technology prevents drivers from locking their cars, especially when they have to search their purse or backpack to find keys in a parking lot filled with strangers or on an area with high crime rates. A lot of systems will alert drivers if the key battery is low, but this feature varies by the manufacturer.

Convenience

The smart key is ideal for those who are in a rush to get somewhere. You can lock, unlock and start your car by pressing a button on the door handle or the trunk release. Popular Mechanics explains that the key fob can also be used for tracking charging, location, and other information about your vehicle.

You don't want to accidentally lock your keys inside the car. The key fob communicates to an antenna in the vehicle to determine whether it's within the range. If it's not, the engine will not start. This helps deter would-be thieves who might steal your car to sell its parts.

BMW reports that the smart key replacement near me key makes use of rolling codes to ward off hacking and cloning. The vehicle's computer is able to recognize and verify the code prior to starting the motor. The majority of systems also have a mechanical backup in the form of an invisible key blade for styling purposes.

How Stuff Works Electronics notes that modern smart keys be able to detect keys used and adjust the car settings accordingly. If you start the vehicle while holding the key in your palm, for example the windows as well as the sunroof will be opened to let air circulate the interior. You can also set the speed limit to only apply when the vehicle is started using the specified key, which could be useful when loaning 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 down and then press the unlock button.

This will block your smart key fob's smart chip from sending or receiving any radio waves that could extend its battery's life considerably. It is possible to reactivate the function by pressing the unlock and lock buttons again.

Certain smart keys come with anti-theft features that stop them from being copied by thieves. Mercedes-Benz replacement smart car key key uses rolling codes to block access by anyone who is not authorized to use it. The computer in the car examines the code in milliseconds after the smart key is put in. BMW utilizes a Display Key that has a tiny LCD screen with a color. This allows drivers to lock their cars, open them, and even start them without taking the smart key from their pockets.

If you're considering purchasing a new car with a smart key, or if you require your smart key fob's battery replaced, contact Pop-A-Lock for a fast and easy service. Our mobile locksmiths can replace the battery on any smart key and help to set it up so that your car recognizes it.

Special Cases

Smart keys aren't 100% safe from theft, but they can aid in deterring thieves. Smart keys use rolling security codes to prevent theft, 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 number of automobile brands that are luxury.

A smart key system will work even if you don't remember the key in your trunk or leave it at an establishment. Some systems will alert the driver when the battery is low. Some brands offer key covers designed specifically for smart keys, to shield the fob from damage.