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Vehicle Smart Key Technology

The smart key technology found in vehicles enables drivers to unlock and start their vehicle by simply rubbing the door handle, or putting the keys in the pocket. It also permits a variety of other adjustments, including the position of the seat and internal temperature settings as well as mirror position.

However, it could also result in security issues.

Security

Smart keys are highly sophisticated computerized key fobs that communicate with vehicles via one of the antennas in the car to unlock doors and start the engine. Smart keys, unlike traditional keys, which emit the same frequency each time they're pressed, send encrypted signals which are only compatible with the car to which they belong. This makes it much more difficult for thieves with the latest technology to impersonate or intercept the signal and use the key to take your car.

For example, Mercedes' system -- called Keyless Go -- has an internal transponder which can identify the driver's keys. The smart car key supplier Key automatically unlocks and opens the doors and the tailgate when it is within 1.5 meters. It also starts the engine by pressing the key.

Furthermore certain smart keyssuch as those from BMW -- have individual user settings that allow the driver to adjust the mirrors, seat and the steering wheel's position as well as audio preferences at the click of a button. They also have a backup lock that prevents the vehicle from starting without the key.

This technology prevents drivers from locking their cars, particularly when they have to search their purse or backpack for keys in a parking area packed with strangers or on an area with high rates of crime. Many systems also alert motorists when their keys are running low on battery, but this feature differs by manufacturer.

Convenience

If you're in a hurry get to a place the smart key makes getting into your vehicle as easy as possible. You can unlock, lock and start your car by pressing the door handle or the trunk release. The key fob will communicate with your smartphone to keep track of charging locations, charging times and other details regarding the vehicle, as explained by Popular Mechanics.

The main benefit is that you aren't able to accidentally be locked out. The key fob communicates with the antenna inside the vehicle to determine if it's in range. If it's not in range, the engine will not start. This can deter thieves who could take your vehicle and sell its parts.

BMW reports that the smart car key recoding key utilizes rolling codes, as well as to stop cloning and hacking. A computer in the vehicle reads the code and confirms it before starting the engine. Many systems also have a mechanical backup that is an invisible key blade to be used for styling purposes.

How Stuff Works Electronics notes that modern smart keys also detect the key used and adjust the car settings accordingly. For instance, if switch on the car while holding the key fob in the palm of your hand the windows and sunroof open to let the cabin air dry. You can also set a speed limit that will only be in effect when the car is started with the selected key, a feature that could be useful if you loan your car key repair shop to an inexperienced driver.

Battery Life

If you're looking for a way to get more mileage out of your vehicle's smart key for cars 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 you need to press and hold the lock button while pressing the unlock button.

This will block your smart key fob to transmit or receive radio waves. This will dramatically extend the life of its battery. It is possible to reactivate the function by pressing both the unlock and lock button again.

Certain smart keys come with anti-theft functions that prevent them being copied by thieves. For example, Mercedes-Benz smart keys use rolling codes to stop unauthorized vehicle access. The car's computer checks the code milliseconds after the smart key is introduced. BMW uses a Display Key with a small LCD color screen. This allows drivers to lock their cars, unlock their doors, and start them without taking the smart key from their pockets.

If you're considering purchasing the latest car equipped with a smart key, or need the battery in your smart key fob replaced, contact Pop-A-Lock to get a quick and easy service. Our mobile locksmiths can change the battery on any smart key and assist to set it so that your car can recognize it.

Special Cases

While smart keys are not safe from theft, they do assist to hinder thieves. Smart keys are designed to stop hackers from gaining access to the system. When they are inserted into the ignition of the car, the computer verifies the code in milliseconds. This technology was developed by Mercedes-Benz and is now employed by a number of automobile brands that are luxury.

Another useful feature is that many smart forfour key key systems will continue to function even if the user has forgotten the key in the trunk, left it at the restaurant, or lost it on a hike. Certain systems will also notify the driver when the battery is not fully charged. Certain brands also offer key covers specifically made for smart keys that keep the key safe from damage.