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Vehicle Smart Key Technology

The smart key technology in vehicles allows drivers to open and start the car simply by touching the door handle or placing the key in the pocket. It also enables a range of other adjustments, like the position of seats, internal temperature settings, mirror positioning and stereo presets.

However, this could also cause security issues.

Security

smart car key keys are computerized key fobs that communicate with vehicles through an embedded antenna. It can unlock doors and begin the motor. In contrast to conventional keys that emit the same frequency signal every time they are used, smart keys transmit encrypted signals that are only compatible with the car they belong to. This makes it more 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, which can identify the key of the driver. The Smart Key automatically unlocks and opens the doors and tailgate when it is within 1.5 meters. It also turns on the engine by pressing a button on its key.

Furthermore some smart keyssuch as those from BMW -- have individual user settings that allow the driver to adjust the seat, mirrors and the steering wheel's position as well as audio preferences at the touch of one button. They also come with a backup lock that prevents the vehicle from starting if it is not connected to the key.

This technology can prevent drivers from accidentally locking their vehicles, particularly when searching through a purse or backpack to find keys in a parking space packed with strangers or on a busy street with high rates of crime. Many systems will also inform drivers when the battery in their keys is low, though this feature varies by the manufacturer.

Convenience

If you're in a hurry get to a place the smart key makes getting into your car as easy as possible. You can lock, unlock and start your car simply by pressing the door handle or the trunk release. Popular Mechanics explains that the key fob can also be used to track charging, location, and other information about your vehicle.

A big benefit is that you don't lose your keys. The key fob communicates to an antenna in the vehicle to determine whether it is within range. If it's not, the engine will not start. This can deter thieves who would take your vehicle and sell the parts.

The smart key uses rolling codes to deter hacking attempts and cloning, says BMW. The computer inside the vehicle reads the code and verifies it before starting the engine. Most systems have a physical backup in the form of an invisible key blade.

How Stuff Works Electronics notes that modern smart keys be able to detect keys in use and adjust vehicle settings according to the situation. For example, if you start the car while holding the key fob in your palm, the windows and sunroof will open to ventilate the cabin. You can also set a speed limit which will only be applied when the vehicle is powered by the specified key. This feature is useful if you're loaning your car to someone who has no prior experience.

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 stop your smart key fob from transmitting or receiving any radio waves that could extend its battery life significantly. It is possible to reactivate the function by pressing the unlock and lock buttons again.

Some smart keys include anti-theft capabilities that prevent them from being copied by thieves. For instance, Mercedes-Benz new smart car key keys use rolling codes to block unauthorised access to vehicles. The car's computer examines the code in milliseconds after the smart key is introduced. BMW has a similar system with its Display Key, which comes with a small LCD color touchscreen on the smart key to make it easier and allows drivers to lock and unlock their cars without ever removing the key from their pockets.

Contact Pop-A-Lock if your need to replace the battery on your smart key fob if you are thinking of purchasing a car with smart-key. Our mobile locksmiths can change the battery on any smart key, and will help to set it up so that your car can recognize it.

Special Cases

While smart keys aren't safe from theft, they do assist to discourage thieves. smart car keys key fobs are designed to deter hackers from gaining access to the system. When they are inserted into the ignition of the car, the computer verifies the code in milliseconds. Mercedes-Benz invented this technology, which is now used by luxury car manufacturers.

A smart key system will work even if you forget the key in your trunk or leave it in a restaurant. Some systems will also alert the driver when the battery is low. Some brands offer key covers that are specifically designed for smart Keys cars keys, to shield the fob from damage.