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Vehicle Smart Key Technology

The smart key technology found in vehicles enables drivers to unlock and start their car by simply rubbing the door handle, or by putting the key into the pocket. It also allows for various other adjustments, including seat position, internal temperature settings and mirror positioning.

However, this could cause security issues.

Security

Smart keys are highly sophisticated computerized key fobs that communicate with the vehicle using one of the car's embedded antennas to open doors and start the engine. Unlike conventional keys, which emit the same frequency signal every time they are pressed, smart key fobs transmit encrypted signals that only match the specific car they belong to. This makes it difficult for thieves with advanced technology to intercept or fake the signal, and use your key to steal your vehicle.

Mercedes' Keyless Go system, for example, has an internal transponder that identifies the driver's key. When the Smart Key comes within 1.5 meters of a car it automatically unlocks the door and tailgate, and the engine starts when a button on the key is pressed.

Certain smart keys, like those made by BMW are also equipped with user-specific settings, which allow users to alter the mirrors, seat and steering wheel's location and even the audio settings with the press of a single button. They also come with the backup lock, which stops the vehicle from starting if it is not connected to the key.

This technology helps drivers avoid being unable to lock their vehicle and causing damage to their vehicle, particularly when searching a purse or a backpack to find keys in a parking lot with strangers or on a busy street where crime is high. Some systems also notify drivers when the key is not fully charged, however this feature differs by manufacturer.

Convenience

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

A big benefit is that you can't accidentally lock yourself out. The key fob communicates with an antenna inside the vehicle to determine whether it's in range. If it's not, the engine will not start. This is a deterrent to thieves who may steal your vehicle in order to sell its parts.

BMW reports that the smart key employs rolling codes in order to stop cloning and hacking. The computer inside the vehicle recognizes the code and checks it prior to starting the engine. Most systems also have a backup mechanical system that is the key blade, which is hidden for styling purposes.

how much is a replacement smart car key Stuff Works Electronics notes that modern smart keys also detect when the key is being used and adjust the vehicle settings in line with the use of the key. For instance, if you switch on the car while holding the key fob in your hands the windows and sunroof will open to let air circulate through the cabin. You can also set the speed limit to only be in effect when the car is started using the chosen key, a feature that could be useful when loaning your car to a new 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 down the lock button and press the unlock button.

This will block your smart key fob's smart chip from sending or receiving radio signals and will increase the battery's lifespan significantly. You can always restart the function by pressing both the unlock and lock buttons again.

Some smart forfour key programming keys have anti-theft features that stop them from being copied by thieves. Mercedes-Benz smart fortwo key fob keys use rolling codes to prevent access by anyone who is not authorized to use it. The computer in the car will check the code every millisecond after the smart key is placed. BMW uses a similar method with its Display Key, which includes an LCD touchscreen on the smart key for added convenience, and allows drivers to lock or unlock their cars without ever removing it from their pockets.

Call Pop-A-Lock if you need to replace the battery in your smart key fob or in the event that you are thinking of purchasing a vehicle with a smart-key. We can replace the battery on any smart key and our mobile locksmiths will help you set it up so that your vehicle recognizes it.

Special Cases

Although smart keys aren't secure against theft, they can help to stop thieves. smart car Spare key keys utilize rolling security codes that prevent hacking, and when placed in the ignition, the vehicle's computer validates the code within milliseconds. This technology was developed by Mercedes-Benz and is currently used by a number of luxury car brands.

Another useful feature is that the majority of smart key systems will continue to function even if the user has forgotten the key in the trunk or left it at the restaurant, or lost it during an excursion. Certain systems will also notify the driver if the battery is running low. Certain brands provide keys with covers specifically designed for smart keys to protect the fob from damage.